He held or shared the lead for the first two rounds and finished tied for third place, four strokes behind the winner, Billy Hurley III.

Rahm finished tied runner-up in the RBC Canadian Open, securing Special Temporary Member status for the remainder of the season.

In late January 2017, Rahm won the Farmers Insurance Open with a 60-foot eagle putt on the final hole to notch his maiden PGA Tour title.

He continued his domination in the round of 16 with a second consecutive 6 & 4 win over Charles Howell III, and then bested that mark when he eliminated Søren Kjeldsen 7 & 5 in the quarterfinals.

Both players made par on the final hole of the match and Rahm finished runner-up in his WGC-Match Play debut, which allowed him to ascend to a new career-high world ranking of 14th.

[30] Rahm started 2018 by finishing runner-up eight strokes behind Dustin Johnson at the Sentry Tournament of Champions in Kapalua, Hawaii.

[31] Later in the month, Rahm won the CareerBuilder Challenge after a sudden death playoff with Andrew Landry, for his second career PGA Tour victory.

[32] This made it four wins in just 38 professional starts for Rahm – a ratio bettered only by Tiger Woods in the past 30 years.

[33] In his short professional career, Rahm has become renowned for his fiery on-course temper, which came to the fore during the final round of the Waste Management Phoenix Open, where he slammed his club into the ground.

[38] On 28 April 2019, Rahm won the Zurich Classic of New Orleans on the PGA Tour with partner Ryan Palmer.

[40] On 7 July 2019, Rahm won the Dubai Duty Free Irish Open at Lahinch Golf Club.

Beginning the round at eight-under overall, Rahm registered four birdies on the front nine to make the turn at 11-under overall and three-under 31 for the day.

The 2017 Irish Open champion then shot five-under 31 on the back nine, including four birdies and an eagle, to close out the two-stroke victory.

[44] On 19 July 2020, Rahm won the Memorial Tournament, lifting him to number one in the Official World Golf Ranking.

[3] His reign as the number one golfer lasted two weeks, until Justin Thomas overtook him with victory in the WGC-FedEx St. Jude Invitational.

[45] On 4 January 2021, it was announced that Rahm had signed a multi-year agreement with Callaway Golf Company, ending his association with TaylorMade that began when he turned professional.

[46] In June, Rahm was forced to withdraw as the defending champion from the Memorial Tournament due to a positive COVID-19 test.

[47] On 20 June at Torrey Pines, Rahm finished with two birdies on the final two holes to win his first major tournament at the U.S.

[50] In August, Rahm shot rounds of 63-67-67 to share a tie for the lead alongside Cameron Smith at The Northern Trust.

[52] In September 2021, Rahm played on the European team in the 2021 Ryder Cup at Whistling Straits in Kohler, Wisconsin.

[57] In October, Rahm won the Acciona Open de España, shooting a final-round 62 to win by six shots ahead of Matthieu Pavon.

[59] Rahm began 2023 by shooting a final-round 63 at the Sentry Tournament of Champions to win by two shots ahead of Collin Morikawa.

[64] On 9 April, Rahm won the Masters Tournament and his second major title by four strokes ahead of Brooks Koepka and Phil Mickelson.

After the third round was delayed due to weather, Rahm had to play 30 holes on Sunday in which he started four strokes back of Koepka.

[66] At the Open Championship in July, Rahm shot the 40th 63 in major history, and the first at Royal Liverpool Golf Club.

In September, Rahm played on the European team in the Ryder Cup at Marco Simone Golf and Country Club in Italy.

The European team won 16.5–11.5, with Rahm going 2–0–2, including a tie in his Sunday singles match against Scottie Scheffler.

Rahm's surname originates from a Swiss ancestor who moved to Spain in the 1780s;[79] his father is a Biscayan, Basque, while his mother is from Madrid.

[82] Rahm lives in Scottsdale, Arizona with his American wife, Kelley Cahill, whom he married in 2019, and their sons Kepa and Eneko (born in 2021[83] and 2022).