Sentry Tournament of Champions: Lost to Justin Thomas in a three-hole playoff at the Sentry Tournament of Champions, falling to 2-2 for his career in playoffs. Marked his sixth career runner-up on TOUR and first since the 2018 Valspar Championship. Became the first player since the tournament moved to The Plantation Course at Kapalua in 1999 with 100 putts or fewer in a single year (99). One-Putt Percentage of 62.50 percent was the best on TOUR since Bud Cauley at the 2018 RBC Heritage (65.28%).

Later in the month, Rahm won the CareerBuilder Challenge after a sudden death playoff with Andrew Landry, for his second career PGA Tour victory. After matching scores on the first three extra holes, Rahm prevailed with a birdie on the fourth extra hole. The win lifted Rahm to a career high 2nd in the world rankings.[26] This made it four wins in just 38 professional starts for Rahm – a ratio bettered only by Tiger Woods in the past 30 years.[27]
Kessler Karain & 9 other @PresidentsCup caddies made the two newbies Austin Johnson and G.W. Cable karaoke in 2015 Cup and called it their initiation. They bought it and went all out to “Total Eclipse of the Heart.” That and more in my story w Kessler: …
Farmers Insurance Open: Beginning the final round of the Farmers Insurance Open three strokes off the lead at 6-under 210, overcame a bogey at the first hole with four birdies and two eagles to post a 7-under 65 and claim his first career PGA TOUR victory by three strokes over C.T. Pan and Charles Howell III at 13-under 275. Following an eagle-3 at the 13th hole, finished his last two holes birdie-eagle to put an exclamation point on the win. Drained a 60' 8" putt for his second eagle of the day at the par-5 18th hole. With two eagles and a birdie, played the par-5 13th hole on the South Course in 5-under for the week (three rounds). With the win at Torrey Pines, became the second Spaniard to win the Farmers Insurance Open, joining Jose Maria Olazabal (2002). He also became just the fourth international winner of the event, joining Gary Player (1963), Olazabal (2002), and Jason Day (2015).

RBC Canadian Open: Posted T2 finish with rounds of 67-71-72-67 while playing as a sponsor exemption at the RBC Canadian Open. With runner-up finish, collected 208 non-member FedExCup points, taking his total to 382, surpassing the points earned by the player at No. 150 in last season's FedExCup standings (361 by Cameron Percy), becoming eligible for Special Temporary Membership on the PGA TOUR. Ranked No. 1 in Approach Proximity to the Hole with 30 feet, 3 inches for the week.
DEAN & DELUCA Invitational: The two-time Hogan Award winner (given annually onsite Monday of the DEAN & DELUCA Invitational) trailed 54-hole leader Webb Simpson by four strokes at the start of the final round of the DEAN & DELUCA Invitational. After a bogey on the par-4 third, made five birdies en route to a 4-under 66. Barely missed a 12'2" putt on the last for birdie to force a playoff with Kevin Kisner. Marked his seventh top-10 finish in 14 starts this season, with four inside the top three. Was looking to join fellow Spaniard Sergio Garcia on the list of players to win the DEAN & DELUCA Invitational in their first appearance.