In August 2018, Wilson claimed his second ranking event title at the Paul Hunter Classic, defeating 2002 World Champion Peter Ebdon 4–2 in the final. In September, he won his second consecutive tournament, the non-ranking Six-red World Championship, defeating Ding Junhui in the final 8–4. He then reached the semi-finals of the Shanghai Masters where, after tying the match at 6–6, he lost 6–10 to defending and eventual champion Ronnie O'Sullivan.