Having earned an incredible $122,000 (£77,095) since 2007 from video-gaming, Katherine “Mystik” Gunn (USA) has higher career earnings than any other female competitive video game player.She first started competing in Halo and obtained $100,000 playing Halo: Reach to win series 2 of American reality TV program WCG Ultimate Gamer.Putting success down to tireless practice and a love of the game, she is pleased that her Guinness World Records title recognises that she has “done something when it comes to competitive gaming”.