I don't know much about Jimmy Robertson, so I just wiki'd him.
Jimmy "Robbo" Robertson (born May 3, 1986) is an English professional snooker player.
He was on the main tour for 2002/2003 where he was the youngest player on the tour. He qualified for the main tour again in 2007/2008, by becoming the number One Ranked English Amateur, through winning the EASB (English Governing Body) pro-Ticket Tour Rankings.
Robertson also won the EASB Pro-Ticket tour for a second time in April 2009,to finish as Englands Number one Amateur for the second time, which guaranteed him a place on World Snookers main Professional tour for the 3rd time for the 2009/10 season. He also added the English Amateur Championships to his portfolio of victories, by beating David Craggs 9–8.
His third return to the professional main tour ranks in 2009/10, saw him rise up the ranks, to number 63 in the world. He got off to a terrific start in the first event, the Shanghai Masters, where he won his first three qualifiers, and then faced former world champion Graeme Dott. Despite taking a 4-1 lead, Robertson lost 4-5.
In 2010/11, Robertson continued to rise up the rankings. He also qualified for the main draw of a ranking event for the first time, at the 2011 World Snooker Championship. He defeated Xiao Guodong, Tony Drago, and former world champion Ken Doherty to qualify for his Crucible debut.