Webster atoned for his misses against Wade a year earlier when he faced Simon Whitlock in the 2015 edition of the World Championship. From 1–1 in sets he only allowed the world number seven one more leg as he beat him 3–1. He won a trio of sets in deciding legs to lead Dean Winstanley 3–2 in the second round. However, Webster lost two sets in a row to be beaten 4–3. Webster twice reached the quarter-final stage of Players Championship events in 2015.