After winning just two of his 11 matches before the 2016 UK Championship, Mann described his 6–3 first round victory over Kyren Wilson as a massive relief. He then beat Sam Baird 6–2, before falling 6–3 to Zhang Anda in the third round. At the Scottish Open he eliminated Baird 4–2 and Anthony McGill 4–1, but then lost 4–1 to Sean O'Sullivan. Mann reached the last 32 of an event for the third time this season when he overcame Michael Holt 4–1 and O'Sullivan 4–2 at the Welsh Open and he was defeated 4–2 by Kurt Maflin.