O'Connor entered the UK Open in the second round, where he took on fellow Irishman Steve Lennon. William got the better of Lennon 6–2 to book a spot in the Last 64. Here, he played Mick Todd, who O'Connor beat 10–3 over the longer format. In the Last 32, he played Ronnie Baxter, with William claiming a super 10–6 win to reach his second ever UK Open Last 16. Simon Whitlock was his opponent, and the Aussie proved just too much, defeating O'Connor 10–7, although the Limerick man picked up £6,500 for his run.