The tournament took place at the Winter Gardens, Blackpool, from 18 to 26 July 2015.
Phil Taylor was the defending champion, having won the last seven editions of the event and he reached the semi-finals, where his 38-game unbeaten run came to the end against James Wade.
Michael van Gerwen won his first World Matchplay title by defeating Wade 18–12 in the final.
However, in 2013 after consulting the host broadcaster Sky Sports, the PDC decided that games will now only proceed for a maximum of six extra legs before a tie-break leg is required.
The top 16 on the PDC Order of Merit qualified as seeded players.