Newton continued his progress at the 2011 World Championship, defeating Darin Young, Brendan Dolan and Mensur Suljović on the way to the quarter-finals. He then led Terry Jenkins 4–3 in his quarter-final, before Jenkins fought back to win 5–4. In March 2011, Newton moved into the top eight of the PDC Order of Merit, following a win in a Pro Tour event in Crawley.
At the 2011 UK Open, Newton progressed to his first televised final. On the way to the final, he beat John Henderson, Michael van Gerwen, Raymond van Barneveld, Dave Chisnall and Denis Ovens, but succumbed to James Wade losing 8–11. As a result of his run to the final, he qualified for the 2011 Grand Slam of Darts by right. After the UK Open, it was announced that Newton had appointed three-time world finalist Peter Manley as his manager.
At the 2011 World Matchplay, Newton beat Andy Smith in the first round 10–2, making it past the first round for the first time in the tournament. Newton then beat Justin Pipe 13–8 in the second round, before losing 5–16 to Phil Taylor in the quarter-finals.