Lowry started the 2018-19 season with partial status after finishing 140th in the FedEx Cup. He moved into a share of the 36-hole lead at the 2019 Open Championship at Royal Portrush, after successive opening rounds of 67. He was tied at eight under with J. B. Holmes. Lowry then shot a 63 for a new course record to lead by four strokes at the end of the third round.[21] He won the tournament by six shots ahead of Tommy Fleetwood.[22][23][24]
U.S. Open: Established the first-round lead at the U.S. Open with a 7-under 65 and was in the mix all week at Erin Hills. Followed with 73 to be one back through 36 holes. Third-round 68 had him two adrift headed into final round. Closed with even-par 72 to finish six back of Brooks Koepka at T5. In nine U.S. Open appearances, has advanced to the weekend five times and never broken par in the final round.

While serving a suspension, Lowry signed a two-and-a-half-year permanent deal to Millwall for an undisclosed fee on 27 January 2012.[24] Lowry then made his first appearance for the club since joining Millwall permanently, playing 90 minutes, in a 2–1 loss against rivals' West Ham United on 4 February 2012.[25] Right way through March, Lowry was sidelined with ankle injury that kept him out for weeks.[26] After making his first team return against Cardiff City, in a 0–0 draw on 31 March 2012,[27] Lowry scored his first Millwall goal, which he scored the only goal in the game, in a 1–0 win over Coventry City on 17 March 2012.[28] Lowry finished his 2011–12 season, making twenty-two appearance and scoring once.


In the 2013–14 season, Lowry suffered a minor thigh strain in the club's pre-season friendly.[35] Despite this, Lowry remained in the first team under the new management of Steve Lomas until he received a straight red card after a foul on Will Hughes, in a 5–1 loss against Derby County on 14 September 2013.[36] After serving a three match ban, Lowry remained on the bench without playing for four matches[37] Lowry made his first team return on 2 November 2013 when he came on as a substitute for Scott Malone against Burnley. However, his return, after spending two months without playing, was a disastrous when he scored an own goal, which saw Millwall drew 2–2.[38] After this, Lowry was out of the first team, demoted to the substitute bench between mid-November and mid-December until he made his return on 26 December 2013, in a 4–0 loss against Watford.[39] On 28 January 2014, Lowry was sent-off for the second time this season in the late-minutes against Sheffield Wednesday after fighting with Giles Coke, who also was sent-off as well, with both side drew 1–1.[40] After serving a four match ban,[41] Lowry was in the first team throughout February and March until he suffered a foot injury that kept him out for the remainder of the season.[42] Lowry went on to finish the 2013–14 season, making twenty-two appearance.
On July 16, 2017, DeChambeau earned his first PGA Tour victory by winning the John Deere Classic by a single stroke over Patrick Rodgers. He carded a round of 65 in the final round to win his maiden title in his 40th start on tour. The win coming the week before, gained DeChambeau a place in the 2017 Open Championship, where he missed the cut after rounds of 76–77 (+13).
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