Tight at the top of Farmers Insurance Open leaderboard

World No. 1 Jon Rahm of Spain birdied three of his last four holes on Thursday to pull into a tie for first place at the midpoint of the Farmers Insurance Open in California.

Rahm (65) moved to 13 under and joined Justin Thomas and Adam Schenk, who went even lower than Rahm with a 63 and 62, respectively.

FULL LEADERBOARD

All three co-leaders played the North Course at Torrey Pines for their second round after opening the event at the South Course. The trio leads Cameron Tringale (65 Thursday) by a shot and Peter Malnati (66) by two.

After starting on the back nine of the Torrey Pines North Course with five birdies and a bogey, Rahm avoided bogey the rest of the day while birdieing the sixth through eighth holes en route to a 7-under day.

Rahm won the tournament in 2017 and returned to Torrey Pines to lift his first major championship trophy at last year's US Open. He said those experiences weren't comparable to his situation this week because he won those events from behind.

"A US Open is very, very different. I believe I was 3 under through two rounds and I was thrilled with that score," Rahm said. "At (13) under right now and I think how much better it could have been if I hit fairways, right? So it's not comparable."

Thomas, a major champion like Rahm, is in search of his first title since the 2021 Players Championship 10 months ago. He rattled off nine birdies without a bogey Thursday to shoot five strokes lower than his opening round.

Among his highlights was a chip-in birdie that swept right to left at the par-4 second hole. Thomas said it was his first chip of the day.

"These greens don't quite grab as much on the chips and the pitches, so unfortunately I hit it well to the first 10 holes where I hadn't hit a chip yet,"