The first ranking event McGill qualified for this season was the International Championship and he thrashed Sean O'Sullivan 6–0, before losing 6–1 to Mark Selby. He exited in the second round of the UK Championship 6–4 to Luca Brecel and reached the last 32 stage of a ranking event for just the second time this season at the Welsh Open with wins over Liam Highfield and Thepchaiya Un-Nooh, but lost 4–2 to Neil Robertson. McGill overcame Hatem Yassen 10–1, Craig Steadman 10–9 and Thepchaiya Un-Nooh 10–7 to qualify for the World Championship for the second year in a row. In a rematch of last year's quarter-final, McGill met Shaun Murphy and came back from 6–4 to win 10–8.&gt; However, after he lost 13–9 to Marco Fu in the second round, McGill described his play as rubbish.