Jon Rahm insists he does not need the validation of being the world's number one golfer after returning to the top of the rankings with his win at the Genesis Invitational.

Rahm held off Max Homa to claim his third PGA Tour title of 2023 on Sunday, having gone back-to-back at the Sentry Tournament of Champions and The American Express in January.

The Spaniard is the first player since Johnny Miller in 1975 to win three PGA Tour titles in a calendar year before the start of the March, while he has now triumphed on five of his last nine worldwide starts.

Rahm's win at California's Riviera Country Club – at a competition hosted by Tiger Woods – secured his fifth stint atop the world rankings, but the 28-year-old has little interest in that accolade.

"I've never had three PGA Tour wins in a season, and to do it this early on is incredible – and to do it at this golf course," he told reporters after his victory.

"You talk about the history of Riviera as a golf course, the history of Tiger Woods as a player… it's a pretty big deal. As a historian of the game, to win the tournament hosted by Tiger is pretty incredible.

"I've won five out of my last nine starts and I've won three tournaments already.

"I don't a ranking to tell me… to validate anything, right? I'm having the best season of my life and hopefully I can keep it going."