Xander Schauffele hit a major record-equalling 62 in the first round of the PGA Championship and the American is now priced at 11/4 to triumph at Valhalla.
Schauffele was in sensational form as he holed nine birdies in a phenomenal bogey-free round to lead the field by three shots, setting a course record in the process.
It was only the fourth time in major history that a player had carded a 62, with Schauffele achieving the feat at the U.S. Open last year alongside Rickie Fowler, while Branden Grace was the first at the Open Championship in 2017. This was the first on a par-71 course.
Schauffele was almost faultless as he broke clear of the pack with five birdies from his opening nine holes and maintained that form into the front nine.
The 30-year-old has not triumphed in a competition since lifting the Scottish Open title in 2022 and developed an unwanted streak of starting strong and fading as the weekend progresses, with Schauffele seeing his lead dissolve at the 2023 U.S. Open following an impressive start.
He's endured several near-misses in majors, having finished T2 in the 2018 Open Championship and 2019 Masters, and he will be anxious to end his wait for a maiden win in one of golf's marquee events.
Tony Finau (28/1) and Sahith Theegala (25/1) sit in a tie for second on six under, one stroke ahead of Rory McIlroy, who is priced at 11/2 to win his first major since 2014.
Collin Morikawa (14/1), Robert MacIntyre (110/1), Tom Kim (66/1), Thomas Detry (100/1) and Tom Hoge (75/1) were among the seven players to post five-under-par 66s.
Scottie Scheffler carded a 68 in his first round and is five shots adrift of Schauffele. A hole-out eagle on the first was the highlight of his day and the world number one is now 17/4 to win back-to-back majors.
Brooks Koepka (12/1) is also in the frame at four-under-par, with the defending champion demonstrating his exquisite iron play by finding 14 greens in regulation.
All odds displayed on this page were correct at the time of writing and are subject to withdrawal or change at any time.
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