In 2010 Walker won Rileys Future Stars competition, and won £5,000 and coaching sessions with Ronnie O'Sullivan. The same year he was invited to compete in the World Open. He defeated Julian Logue 3–1 in the first qualifying round, but lost 1–3 against Tony Drago in the next round. Walker also competed at the Players Tour Championship, with his best result coming at the fourth event in Sheffield, where he reached the last 64 and lost 0–4 against Robert Milkins.&lt;ref name="Snooker.org 2010/2011"&gt;&lt;/ref&gt; He finished 137th on the Order of Merit. He tried unsuccessfully to turn professional through the Q School, with his best result coming in the second tournament, where he reached the last 16, but lost 1–4 against Simon Bedford.