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Re: Rankings revisit - a trip through history

Postby chengdufan

Following the 2018 Riga Masters

Top 16
1 = Mark Selby 29328
2 = John Higgins 29200
3 = Mark Williams 27199
4 = Ronnie O'Sullivan 26272
5 = Judd Trump 25261
6 = Ding Junhui 22913
7 = Barry Hawkins 20668
8 +1 Kyren Wilson 18460
9 -1 Shaun Murphy 17760
10 +1 Neil Robertson 17233
11 -1 Mark Allen 16905
12 = Ryan Day 15511
13 = Stephen Maguire 15398
14 +5 Jack Lisowski 14385
15 -1 Stuart Bingham 13978
16 = Ali Carter 13913

In: Jack Lisowski (27)
Out: Yan Bingtao (18)

Top 32 - no change

Top 64
In: Zhao Xintong (21)
Out: Michael Georgiou (30)

Top 128
In: Luo Honghao (18); Adam Stefanow (24)
Out: Jamie Cope (a) (32); Andy Hicks (a) (44)

Big movers
Stuart Carrington (43 -> 34)
Chris Wakelin (42 -> 35)
Zhao Xintong (69 -> 57)
Alfie Burden (75 -> 66)

Re: Rankings revisit - a trip through history

Postby chengdufan

2018 World Open - Yushan No. 1 Middle School
https://en.wikipedia.org/wiki/2018_World_Open_(snooker)

Mark Williams won his fourth ranking event of the calendar year. His opponent in the final, David Gilbert, reached that stage for the second time in his career (the first being the 2015 International Championship defeat to John Higgins).
Gilbert led the final 9-5 and looked a certainty to take his first title. Williams came back though and made a 64-break in the decider to claim a 10-9 victory.

Noppon Saengkham had a stellar tournament, beating Mark Selby and Ryan Day (among others) to reach his first semi-final.

QFs
David Gilbert (31) 5-3 Marco Fu (22)
Barry Hawkins (7) 5-3 Gary Wilson (36)
Noppon Saengkham (48) 5-1 Xiao Guodong (23)
Mark Williams (3) 5-3 Jack Lisowski (14)

SFs
Gilbert (31) 6-4 Hawkins (7)
Williams (3) 6-5 Saengkham (48)

Final
Williams (3) 10-9 Gilbert (31)

Re: Rankings revisit - a trip through history

Postby chengdufan

Following the 2018 World Open, Mark Selby's 2 years and 8 months' run at number 1 ends. He is replaced at the top of the rankings by John Higgins. Higgins was last at number 1 in July 2011.

Top 16
1 +1 John Higgins 30070
2 -1 Mark Selby 29729
3 = Mark Williams 29428
4 = Ronnie O'Sullivan 26776
5 = Judd Trump 25172
6 = Ding Junhui 22827
7 = Barry Hawkins 21835
8 = Kyren Wilson 19084
9 +1 Neil Robertson 17160
10 -1 Shaun Murphy 17006
11 = Mark Allen 16847
12 +1 Stephen Maguire 15641
13 +1 Jack Lisowski 15493
14 -2 Ryan Day 15101
15 = Stuart Bingham 13334
16 +2 Yan Bingtao 13208

In: Yan Bingtao (18)
Out: Ali Carter (39)

Top 32
In: Gary Wilson (33)
Out: Tom Ford (34)

Top 64
In: Matthew Selt (33)
Out: Daniel Wells (30)

Top 128
In: Jamie Cope (a) (32)
Out: Jamie Curtis-Barrett (a) (34)

Big movers
David Gilbert (31 -> 23)
Noppon Saengkham (48 -> 33)

Re: Rankings revisit - a trip through history

Postby chengdufan

Juddernaut88 wrote:I don't actually remember John Higgins briefly being world number 1 during the 2018/2019 season :shock:

Although as we have seen, he has proven through his results over the last two years to be the best player at this moment in time, officially he was ranked below Selby, Williams and O'Sullivan.

Fortunately, rather than the ridiculous prize money ranking system, we now have a ranking system which corrects these kinds of mistakes. We are rewriting history!

Re: Rankings revisit - a trip through history

Postby gninnur karona

chengdufan wrote:Fortunately, rather than the ridiculous prize money ranking system, we now have a ranking system which corrects these kinds of mistakes. We are rewriting history!


Wholeheartedly agree that your ranking system is founded on a more accurate reflection of results. In turn it is highly probable that if your ranking system had been in use the fields for the various World Grand Prixs, Players and Tour Championships (dependent upon single-season points gained) would have been comprised of some different players. Do you have an idea how many? And have you adjusted your rankings to take that into account?

Re: Rankings revisit - a trip through history

Postby chengdufan

gninnur karona wrote:... if your ranking system had been in use the fields for the various World Grand Prixs, Players and Tour Championships (dependent upon single-season points gained) would have been comprised of some different players. Do you have an idea how many? And have you adjusted your rankings to take that into account?


Sorry I didn't reply to this sooner. I was having a bit of a break from this thread.

Yes, I checked a couple of the events mentioned and they had at least 2 players different from the ones who would have played if we'd used my points system.

I haven't adjusted the rankings to take that into account, though I did consider it at length.
You are absolutely right to identify this as a weakness in the system that will affect the rankings. So why not consider it?
What it boils down to is too much work for too little reward. My goal is not to create a perfect ranking system, simply one that significantly improves on the current one, while being easy enough to maintain, understand and explain, and keep up to date. I decided that adjusting for this would not have significant enough of an impact compared to the time needed to implement it.

Re: Rankings revisit - a trip through history

Postby chengdufan

2018 Paul Hunter Classic - Stadthalle, Fürth
https://en.wikipedia.org/wiki/2018_Paul_Hunter_Classic

This was not a popular event with the top professional players. From the top 16, only Kyren Wilson, Shaun Murphy and Jack Lisowski entered. And only a further 6 of those ranked 17-32 took part (though one of the absentees from that group was the suspended Cao Yupeng).

Wilson took advantage of the weak field to win his second ranking event. He beat Peter Ebdon in what would prove to be The Force's last final. Ebdon reached the final for the first time since the 2012 Australian Open.

A large number of amateurs were in the field, many competing in a ranking event for the first time. This included 12 year-old Iulian Boiko, who took a frame off Billy Joe Castle, and 13 year-old Ben Mertens who beat Adam Stefanow in the first round.

Journeyman Peter Lines reached the semi-finals. This was his first semi in 24 years as a pro.

QFs
Scott Donaldson (44) 4-3 Zhang Anda (70)
Peter Ebdon (52) 4-1 Lee Walker (55)
Kyren Wilson (8) 4-3 Daniel Wells (68)
Peter Lines (81) 4-3 Jack Lisowski (13)

SFs
Ebdon (52) 4-1 Donaldson (44)
Wilson (8) 4-3 Lines (81)

Final
Wilson (8) 4-2 Ebdon (52)

Re: Rankings revisit - a trip through history

Postby chengdufan

Following the 2018 Paul Hunter Classic

Top 16
1 = John Higgins 31048
2 = Mark Selby 30331
3 = Mark Williams 30035
4 = Ronnie O'Sullivan 25704
5 = Judd Trump 25025
6 = Ding Junhui 22810
7 = Barry Hawkins 21524
8 = Kyren Wilson 21380
9 = Neil Robertson 17474
10 +1 Mark Allen 17189
11 +2 Jack Lisowski 16668
12 -2 Shaun Murphy 16358
13 -1 Stephen Maguire 15623
14 = Ryan Day 14863
15 +1 Yan Bingtao 13269
16 +1 Joe Perry 13128

In: Joe Perry (44)
Out: Stuart Bingham (42)

Top 32
In: Noppon Saengkham (26)
Out: Robert Milkins (42)

Top 64
In: Zhang Anda (26); Daniel Wells (30); Peter Lines (48); Mei Xiwen (35)
Out: Matthew Steves (40); Sunny Akani (22); Ken Doherty (48); Mike Dunn (46)

Top 128
In: Harvey Chandler (23); James Cahill (a) (22)
Out: Kurt Dunham (a) (26); Jamie Cope (a) (32)

Big movers
Scott Donaldson (44 ->36)
Peter Ebdon (52 -> 39)
Zhang Anda (70 -> 53)
Daniel Wells (68 -> 58)
Peter Lines (81 -> 63)

Re: Rankings revisit - a trip through history

Postby gninnur karona

chengdufan wrote:
gninnur karona wrote:... if your ranking system had been in use the fields for the various World Grand Prixs, Players and Tour Championships (dependent upon single-season points gained) would have been comprised of some different players. Do you have an idea how many? And have you adjusted your rankings to take that into account?


Sorry I didn't reply to this sooner. I was having a bit of a break from this thread.

Yes, I checked a couple of the events mentioned and they had at least 2 players different from the ones who would have played if we'd used my points system.

I haven't adjusted the rankings to take that into account, though I did consider it at length.
You are absolutely right to identify this as a weakness in the system that will affect the rankings. So why not consider it?
What it boils down to is too much work for too little reward. My goal is not to create a perfect ranking system, simply one that significantly improves on the current one, while being easy enough to maintain, understand and explain, and keep up to date. I decided that adjusting for this would not have significant enough of an impact compared to the time needed to implement it.


Thanks for your explanation. In terms of historical rankings I think you've made the sensible call. Going forward. Your more accurately rating event results exposes weaknesses in WST's ranking system. Isn't it in the players' best interests that those whose performances have most merited it participate in the three one-season events? It would be fantastic if your phenomenal work encourages WST to achieve that.

This is an awesome thread. Look forward to reading future postings.

Re: Rankings revisit - a trip through history

Postby chengdufan

2018 China Championship - Guangzhou Tianhe Sports Centre
https://en.wikipedia.org/wiki/2018_China_Championship

Mark Selby picked up his 15th ranking title, winning 150,000 pounds. His defested opponent in the final, John Higgins, despite losing in a deciding frame, earned half that. The losing semi-finalists took home a 'mere' 32,000 pounds. I mention the money here to highlight once again the absurdity of the official ranking system.

It was a good event for three young Chinese players. Lyu Haotian beat Joe Perry and Shaun Murphy in reaching the semi-finals. Zhao Xintong reached the same stage after wins over Anthony McGill, Mark Williams and Barry Hawkins. And Yuan Sijun reached the quarters, beating Ricky Walden, Ding Junhui and Mark King.

QFs
Lyu Haotian (46) 5-1 Martin O'Donnell (73)
John Higgins (1) 5-3 Judd Trump (5)
Mark Selby (2) 5-2 Yuan Sijun (90)
Zhao Xintong (55) 5-4 Barry Hawkins (7)

SFs
Higgins (1) 6-3 Lyu (46)
Selby (2) 6-4 Zhao (55)

Final
Selby (2) 10-9 Higgins (1)

Re: Rankings revisit - a trip through history

Postby chengdufan

Following the 2018 China Championship

Top 16
1 = John Higgins 31796
2 = Mark Selby 31174
3 = Mark Williams 29472
4 = Ronnie O'Sullivan 23995
5 = Judd Trump 23613
6 +1 Barry Hawkins 21329
7 -1 Ding Junhui 20515
8 = Kyren Wilson 20116
9 = Neil Robertson 16511
10 +1 Jack Lisowski 16174
11 -1 Mark Allen 15984
12 = Shaun Murphy 14904
13 = Stephen Maguire 14600
14 = Ryan Day 13347
15 = Yan Bingtao 13144
16 = Joe Perry 12736

Top 32
In: Lyu Haotian (20)
Out: Michael White (27)

Top 64
In: Martin O'Donnell (32)
Out: Peter Lines (48)

Top 128
In: Joe O'Connor (22)
Out: James Cahill (a) (22)

Big movers
Lyu Haotian (46 -> 32)
Zhao Xintong (55 -> 42)
Mei Xiwen (64 -> 55)
Martin O'Donnell (73 -> 61)
Yuan Sijun (90 -> 71)

Re: Rankings revisit - a trip through history

Postby chengdufan

2018 European Masters - De Soeverein, Lommel
https://en.wikipedia.org/wiki/2018_European_Masters

Jimmy Robertson won this ranking title! He had quite a tournament, winning all of his first four matches 4-3, including wins on the final black against Zhang Yong, Zhou Yuelong and Anthony McGill. He then steadily got better with a 4-2 over Mark Allen, 6-4 over Mark King, and a 9-6 win in the final.

It wasn't a good event for the higher seeds. John Higgins qualified but withdrew, as did Mark Williams, whose qualifying match was held over. They both felt it was too soon to play after returning from The China Championship.
Mark Selby lost to Ryan Day in the last 16, and Judd Trump suffered an upset at the hands of Tian Pengfei in the last 32.

QFs
Joe Perry (16) 4-3 Tian Pengfei (63)
Anthony Hamilton (56) 4-3 Jack Lisowski (10)
Mark King (30) 4-1 Ryan Day (14)
Jimmy Robertson (41) 4-2 Mark Allen (11)

SFs
Perry (16) 6-3 Hamilton (56)
Robertson (41) 6-4 King (30)

Final
Robertson (41) 9-6 Perry (16)

Re: Rankings revisit - a trip through history

Postby chengdufan

Following the 2018 European Masters

Top 16
1 = John Higgins 31592
2 = Mark Selby 30939
3 = Mark Williams 29535
4 = Ronnie O'Sullivan 23781
5 = Judd Trump 23729
6 = Barry Hawkins 21237
7 = Ding Junhui 20691
8 = Kyren Wilson 20201
9 +1 Jack Lisowski 17059
10 +1 Mark Allen 16679
11 -2 Neil Robertson 16380
12 +4 Joe Perry 15107
13 -1 Shaun Murphy 14656
14 -1 Stephen Maguire 14319
15 -1 Ryan Day 14213
16 -1 Yan Bingtao 13104

Top 32
In: Jimmy Robertson (32)
Out: Noppon Saengkham (26)

Top 64
In: Perte Lines (48)
Out: Matthew Selt (33)

Top 128 - no change

Big movers
Jimmy Robertson (41 -> 26)
Anthony Hamilton (56 -> 45)
Tian Pengfei (53 -> 54)
Ross Muir (97 -> 87)

Re: Rankings revisit - a trip through history

Postby chengdufan

2018 English Open - K2 Leisure Centre, Crawley
https://en.wikipedia.org/wiki/2018_Engl ... n_(snooker)
https://en.wikipedia.org/wiki/Crawley

Stuart Bingham won his fifth ranking title, beating Mark Davis in the final. This was Davis' first (and to date only) ranking final, aged 46 and in his 28th season as a pro.
Davis had a tough run to the final, but was able to comfortably beat John Higgins, Ryan Day and Ronnie O'Sullivan.
Although this was O'Sullivan's first event of the season, he made a 147 and reached the semi-finals.

This appeared to be a breakthrough event for Luo Honghao. He beat Anthony McGill and Neil Robertson in reaching the quarter-finals.

QFs
Ronnie O'Sullivan (4) 5-3 Luo Honghao (118)
Mark Davis (39) 5-1 Ryan Day (15)
Stuart Bingham (18) 5-2 Ali Carter (20)
Stephen Maguire (14) 5-3 Noppon Saengkham (33)

SFs
Davis (39) 6-1 O'Sullivan (4)
Bingham (18) 6-3 Maguire (14)

Final
Bingham (18) 9-7 Davis (39)

Re: Rankings revisit - a trip through history

Postby chengdufan

Following the 2018 English Open

Top 16
1 = John Higgins 31833
2 = Mark Selby 29538
3 = Mark Williams 29253
4 = Ronnie O'Sullivan 24238
5 = Judd Trump 22499
6 = Barry Hawkins 20655
7 = Ding Junhui 20142
8 = Kyren Wilson 19625
9 = Jack Lisowski 16995
10 = Mark Allen 16347
11 = Neil Robertson 16152
12 +2 Stephen Maguire 15996
13 +2 Ryan Day 15153
14 -2 Joe Perry 15112
15 -2 Shaun Murphy 14929
16 +2 Stuart Bingham 13762

In: Stuart Bingham (42)
Out: Yan Bingtao (18)

Top 32
In: Mark Davis (46); Noppon Saengkham (26); Robert MIlkins (42)
Out: Gary Wilson (33); Cao Yupeng (27) (banned); Lyu Haotian (20)

Top 64
In: Matthew Selt (33); Sunny Akani (23)
Out: Yu Delu (31) (banned); Martin O'Donnell (32)

Top 128
In: Jordan Brown (31); Ashley Carty (23)
Out: Alex Borg (a) (49); Joe O'Connor (22)

Big movers
Mark Davis (39 -> 25)
Daniel Wells (62 -> 53)
Eden Sharav (104 -> 95)
Jordan Brown (130 -> 117)

Re: Rankings revisit - a trip through history

Postby chengdufan

2018 International Championship - Baihu Media Broadcasting Center, Daqing
https://en.wikipedia.org/wiki/2018_Inte ... ampionship

Mark Allen won his fourth ranking title, beating the recently out-of-form Neil Robertson in the final. Allen won six frames in a row to go from 1-1 to 7-1 up. He then lost the next three but held on to claim a 10-5 victory.

There were a couple of major shock results in qualifying. John Higgins lost to Peter Lines, while Shaun Murphy lost 6-0 to the fast declining Sam Baird.

Martin O'Donnell and Matthew Stevens met in a surprise quarter-final clash. O'Donnell beat David Gilbert, while Stevens knocked out Ding Junhui to get to that stage.

QFs
Neil Robertson (11) 6-4 Mark Selby (2)
Jack Lisowski (9) 6-2 Judd Trump (5)
Matthew Stevens (67) 6-5 Martin O'Donnell (66)
Mark Allen (10) 6-0 Ali Carter (18)

SFs
Robertson (11) 9-7 Lisowski (9)
Allen (10) 9-6 Stevens (67)

Final
Allen (10) 10-5 Robertson (11)

Re: Rankings revisit - a trip through history

Postby chengdufan

Following the 2018 International Championship

Top 16
1 = John Higgins 29747
2 +1 Mark Williams 29127
3 -1 Mark Selby 28354
4 +1 Judd Trump 22919
5 -1 Ronnie O'Sullivan 22554
6 = Barry Hawkins 20141
7 +3 Mark Allen 19666
8 -1 Ding Junhui 19352
9 = Jack Lisowski 18862
10 +1 Neil Robertson 18681
11 -3 Kyren Wilson 18488
12 +1 Ryan Day 15592
13 -1 Stephen Maguire 15489
14 = Joe Perry 15289
15 = Shaun Murphy 14114
16 +2 Ali Carter 13330

In: Ali Carter (39)
Out: Stuart Bingham (42)

Top 32 - no change

Top 64
In: Matthew Stevens (41); Martin O'Donnell (32); Yuan Sijun (18)
Out: Matthew Selt (33); Michael Holt (40); Kurt Maflin (35)

Top 128
In: David Lilley (a) (43)
Out: Rhys Clark (24)

Big movers
Matthew Stevens (67 -> 44)
Martin O'Donnell (66 -> 51)
Eden Sharav (95 -> 85)
Li Yuan (107 -> 97)

Re: Rankings revisit - a trip through history

Postby chengdufan

2018 Northern Ireland Open - Waterfront Hall, Belfast
https://en.wikipedia.org/wiki/2018_Nort ... eland_Open

Judd Trump won the event with an impressive win over Ronnie O'Sullivan in the final. It was a close match throughout, but Judd won the last three frames from 7-6 down to win 9-6.

Eden Sharav had the best run of his career, beating Ali Carter on his way to the semi-finals. He knocked in breaks of 65 and 76 against Trump to put up a good showing, losing 6-3.

John Higgins had another poor showing, losing to Rory McLeod in the first round.

QFs
Eden Sharav (85) 5-4 Peter Ebdon (42)
Judd Trump (4) 5-3 Ryan Day (12)
Ronnie O'Sullivan (5) 5-2 David Gilbert (24)
Mark Selby (3) 5-3 Thepchaiya Un-Nooh (52)

SFs
Trump (4) 6-3 Sharav (85)
O'Sullivan (5) 6-5 Selby (3)

Final
Trump (4) 9-7 O'Sullivan (5)

Re: Rankings revisit - a trip through history

Postby chengdufan

Following the 2018 Northern Ireland Open, Mark Selby returns to the top of the rankings. Judd Trump remarkably drops one spot, despite winning in Belfast.

Top 16
1 +2 Mark Selby 29143
2 -1 John Higgins 27826
3 -1 Mark Williams 27516
4 +1 Ronnie O'Sullivan 24927
5 -1 Judd Trump 24901
6 +2 Ding Junhui 19298
7 -1 Barry Hawkins 19137
8 +2 Neil Robertson 18747
9 = Jack Lisowski 18443
10 -3 Mark Allen 18324
11 = Kyren Wilson 17460
12 = Ryan Day 16264
13 = Stephen Maguire 14999
14 = Joe Perry 14541
15 = Shaun Murphy 13852
16 = Ali Carter 13289

Top 32 and top 64 - no change

Top 128
In: Lu Ning (24)
Out: Christopher Keogan (a) (26)

Big movers
Eden Sharav (85 -> 70)
Lu Ning (132 -> 121)

Re: Rankings revisit - a trip through history

Postby chengdufan

2018 UK Championship - Barbican Centre, York
https://en.wikipedia.org/wiki/2018_UK_Championship

Ronnie O'Sullivan won his 7th UK Championship, beating Mark Allen in the final. The key section of the match was in frames 4-9 with the 6 frames all won by the Englishman, taking him from 1-2 down to 7-2 up. He eventually won 10-6.

Ronnie had a surprisingly straightforward (on paper) run to the title. Jack Lisowski (ranked 9) and Mark Allen (10) were the only top 16 players he faced.

At the moment we have something of a 'big 5'. Mark Selby lost to James Cahill in the first round; John Higgins lost to Alan McManus in round 2; Mark Williams was beaten by Stephen Maguire in the last 16; and Judd Trump lost to Joe Perry at the same stage.

L16
Ronnie O'Sullivan (4) 6-1 Jack Lisowski (9)
Martin O'Donnell (48) 6-4 Ding Junhui (6)
Joe Perry (14) 6-4 Judd Trump (5)
Tom Ford (43) 6-5 Lu Ning (121)
Stuart Bingham (17) 6-2 Sunny Akani (54)
Kyren Wilson (11) 6-2 Barry Hawkins (7)
Mark Allen (10) 6-5 Neil Robertson (8)
Stephen Maguire (13) 6-5 Mark Williams (3)

QFs
O'Sullivan (4) 6-1 O'Donnell (48)
Ford (43) 6-2 Perry (14)
Bingham (17) 6-1 Wilson (11)
Allen (10) 6-1 Maguire (13)

SFs
O'Sullivan (4) 6-1 Ford (43)
Allen (10) 6-5 Bingham (17)

Final
O'Sullivan (4) 10-6 Allen (10)

Re: Rankings revisit - a trip through history

Postby chengdufan

Following the 2018 UK Championship

Top 16
1 = Mark Selby 27292
2 = John Higgins 27044
3 = Mark Williams 26882
4 = Ronnie O'Sullivan 26629
5 = Judd Trump 24845
6 +4 Mark Allen 20625
7 -1 Ding Junhui 19752
8 = Neil Robertson 19540
9 -2 Barry Hawkins 18962
10 -1 Jack Lisowski 18561
11 = Kyren Wilson 18372
12 +1 Stephen Maguire 16009
13 -1 Ryan Day 15798
14 = Joe Perry 15432
15 +2 Stuart Bingham 14789
16 = Ali Carter 13441

In: Stuart Bingham (42)
Out: Shaun Murphy (36)

Top 32
In: Tom Ford (35); Gary Wilson (33)
Out: Robert Milkins (42); Liang Wenbo (31)

Top 64
In: Matthew Selt (33)
Out: Fergal O'Brien (46)

Top 128
In: Joe O'Connor (23); James Cahill (a) (22)
Out: Ian Preece (a) (36); Josh Boileau (a) (23)

Big movers
Tom Ford (43 -> 30)
Martin O'Donnell (48 -> 37)
Lu Ning (121 -> 100)
Joe O'Connor (131 -> 116)
James Cahill (a) (133 -> 119)

Re: Rankings revisit - a trip through history

Postby chengdufan

Before I move on to the Scottish Open, I have decided to start running an analysis of these rankings in comparison with the official rankings.

Here's an introduction of my analysis method:
1. Take all the players entering a particular competition and assign them a competition seeding based on their ranking.
2. For every match in which the higher seed wins, the ranking system is awarded a '0'
3. If the lower seed wins a match, penalty points are assigned to the ranking system equalling the difference between the two players' seedings.

For example, in the first round of the Scottish Open, Mark Joyce unexpectedly beat Ricky Walden. With our ranking system, Joyce is seeded 48 and Walden is seeded 19, so in the analysis, 48-19=29 penalty points are awarded. From the official rankings, Joyce is seeded 49 and Walden is seeded 27, so 49-27=22 penalty points are awarded to the official rankings for this match.

4. Add the sum of all the penalty points. A 'perfect' ranking system, able to accurately predict all the tournament results, would score '0', so the system with the lower number of penalty points can be considered the better ranking system.

Re: Rankings revisit - a trip through history

Postby chengdufan

So for the Scottish Open, 40 matches incurred penalty points for our rankings, the sum of which is 1304
The official rankings incurred penalty points in 44 matches, with a total of 1471 penalty points.

Following the Scottish Open:
1. Our rankings 1304
2. Official rankings 1471

Re: Rankings revisit - a trip through history

Postby chengdufan

2018 Scottish Open - Emirates Arena, Glasgow
https://en.wikipedia.org/wiki/2018_Scot ... n_(snooker)

Mark Allen won his fifth ranking title, beating Shaun Murphy in a topsy-turvy final. Allen led 6-3, went 6-7 down, and eventually won 9-7. Allen had a relatively easy run to the title, not having to beat any top 16 players. 17th reanked Shaun Murphy and 24th ranked Graeme Dott were the best players he faced.

Selby, Williams and O'Sullivan did not play; And Higgins lost to Alfie Burden in the last 16.

QFs
Shaun Murphy (17) 5-0 Sam Baird (82)
Judd Trump (5) 5-3 Stuart Carrington (44)
Mark Allen (6) 5-0 Alfie Burden (68)
Daniel Wells (56) 5-1 Ryan Day (13)

SFs
Murphy (17) 6-3 Trump (5)
Allen (6) 6-5 Wells (56)

Final
Allen (6) 9-7 Murphy (17)
Last edited by chengdufan on 13 Aug 2021, edited 1 time in total.

Re: Rankings revisit - a trip through history

Postby chengdufan

Following the 2018 Scottish Open, the top 5 are tightly packed, and Mark Allen in 6th has edged closer to joining that elite group.

Top 16
1 = Mark Selby 28691
2 +1 Mark Williams 27506
3 -1 John Higgins 27369
4 +1 Ronnie O'Sullivan 26484
5 -1 Judd Trump 26245
6 = Mark Allen 23363
7 = Ding Junhui 20336
8 = Neil Robertson 19570
9 +2 Kyren Wilson 18965
10 -1 Barry Hawkins 18938
11 -1 Jack Lisowski 18593
12 +1 Ryan Day 16152
13 -1 Stephen Maguire 15467
14 = Joe Perry 15463
15 +2 Shaun Murphy 15340
16 -1 Stuart Bingham 14583

In: Shaun Murphy (36)
Out: Ali Carter (39)

Top 32
In: Robert Milkins (42)
Out: Martin Gould (37)

Top 64
In: Alfie Burden (42)
Out: Peter Lines (49)

Top 128
In: Chen Feilong (36)
Out: Wang Yuchen (a) (21)

Big movers
Stuart Carrington (44 -> 35)
Daniel Wells (56 -> 40)
Alfie Burden (68 -> 59)

Re: Rankings revisit - a trip through history

Postby chengdufan

2019 German Masters - Tempodrom, Berlin
https://en.wikipedia.org/wiki/2019_German_Masters

Kyren Wilson picked up his third ranking title. In a topsy-turvy final, the Warrior took an early 4-1 lead before falling 7-5 behind. He won the next four frames though to clinch the match with breaks of 93, 54 and 70.

Gilbert knocked out current number 1 Mark Selby in the last 16, while number 2, Mark Williams, was whitewashed by Wilson in the quarter-finals.

Duane Jones came from nowhere to produce a big surprise, reaching the semi-finals. His best wins en route came against Jack Lisowski and Ding Junhui.

QFs
Kyren Wilson (9) 5-0 Mark Williams (2)
Stephen Maguire (13) 5-2 Judd Trump (5)
Duane Jones (112) 5-3 Ding Junhui (7)
David Gilbert (19) 5-3 Neil Robertson (8)

SFs
Wilson (9) 6-1 Maguire (13)
Gilbert (19) 6-1 Jones (112)

Final
Wilson (9) 9-7 Gilbert (19)

Re: Rankings revisit - a trip through history

Postby chengdufan

Following the 2019 German Masters

Top 16
1 = Mark Selby 28128
2 = Mark Williams 27567
3 +1 Ronnie O'Sullivan 26488
4 -1 John Higgins 26243
5 = Judd Trump 26051
6 = Mark Allen 23468
7 +2 Kyren Wilson 21446
8 -1 Ding Junhui 20864
9 -1 Neil Robertson 19119
10 = Barry Hawkins 19087
11 = Jack Lisowski 18337
12 +1 Stephen Maguire 15799
13 -1 Ryan Day 15786
14 +1 Shaun Murphy 15595
15 -1 Joe Perry 15469
16 = Stuart Bingham 14979

Top 32
In: Peter Ebdon
Out: Marco Fu

Top 64
In: Fergal O'Brien
Out: Andrew Higginson

Top 128
In: Ian Preece (a)
Out: Chen Zhe (a)

Big movers
Yuan Sijun (54 -> 44)
Duane Jones (112 -> 90)

Re: Rankings revisit - a trip through history

Postby chengdufan

2019 World Grand Prix - The Centaur, Cheltenham Racecourse
https://en.wikipedia.org/wiki/2019_World_Grand_Prix
https://en.wikipedia.org/wiki/Cheltenham

This event featured the top 32 on the official one-year ranking list.

Judd Trump became the tenth player to have won ten ranking events. Having beaten Mark Selby 5-1 in the quarter-finals, he went on to beat Ali Carter in the final. Remarkably, Trump scored an even 1000 points in the final.

Mark Allen had qualified for the event as the number 1 seed, but lost to Carter in round 2.

QFs
Ali Carter (18) 5-1 David Gilbert (17)
Xiao Guodong (20) 5-4 Yuan Sijun (44)
Judd Trump (5) 5-1 Mark Selby (1)
Barry Hawkins (10) 5-2 Kyren Wilson (7)

SFs
Carter (18) 6-0 Xiao (20)
Trump (5) 6-5 Hawkins (10)

Final
Trump (5) 10-6 Carter (18)