In his opening match, Donaldson defeated Tom Ford 5–1 to qualify for the 2013 Wuxi Classic in China. In his first appearance in the first round of a ranking event he defeated Gareth Green 5–3 and then beat Jimmy Robertson 5–4, before losing 5–1 to Robert Milkins in the last 16.&lt;ref name="2013/14"&gt; &lt;/ref&gt; He was knocked out by Barry Hawkins in the quarter-finals of the minor-ranking Bulgarian Open and in the semi-finals of the Asian Tour event, the Yixing Open. He did not have to qualify for the UK Championship or the Welsh Open as all players on the tour began the events at the venue stage this season and Donaldson took advantage. In the UK he saw off Matthew Selt 6–4 and then secured what he called the best victory of his career to date by taking the last two frames against world number 13 Mark Davis in a 6–5 win. He lost a high quality encounter 6–3 to Joe Perry in the last 32. At the Welsh Donaldson saw off a trio of established players in Robert Milkins, David Gilbert and Andrew Higginson to reach the last 16 of a ranking event for the second time this season, where he was whitewashed 4–0 by Ding Junhui.