Robertson had early exits in both the UK Championship and the Masters, but found his form again en route to the final of the Welsh Open. He defeated Stephen Hendry 5–3, making a break of 141 in the last frame, then recovered from 4–3 down to beat Ronnie O'Sullivan 5–4 in the quarter-finals. He beat Steve Davis 6–3 in the semi-finals, and surprise finalist Andrew Higginson 9–8 in the final to take the title. He led 6–2 after the first session, then dropped six frames in a row to come within one frame of defeat, but took the remaining three frames to win the match.