Charley Hull and partner Michael Brennan were one of two teams to set a new scoring record at the Grant Thornton Invitational, shooting a 17-under 55 on the first day of the mixed team event.
Lexi Thompson and Wyndham Clark are also tied for the lead after shooting 55s in the opening round, with both teams posting just three pars in the scramble format.
Hull and Brennan played 13 straight holes with a birdie or eagle at one stage, but had to settle for par on the 16th and 18th holes.
Hull and Brennan were one of two teams to set new scoring records at the Grant Thornton Invitational.
Brennan, who started the year on the PGA Tour in the United States and won the Utah Bank Championship on exemption, was filling in for Daniel Berger, whose partner Hull was originally slated to play.
Thompson and Clark had birdies or eagles on nine of their final 10 holes, except for the par-3 16th.
The pair’s score of 55 broke the previous record by one round in a mixed team event featuring PGA and LPGA Tour players that began three years ago.
Nelly Korda and her partner Denny McCarthy are 14 under par and three strokes behind the leaders.
They are two shots behind Lauren Coughlin and Andrew Novak at 15 under par. Rose Zhang and Michael Kim, Nelly Korda and Denny McCarthy, and Jennifer Kupcho and Chris Gotterup took a step back on day two.
Defending champions Jake Knapp and Patty Tavatanakit were 7 under through six holes and played their final seven holes at 5 under for a 59, four strokes behind.
On Saturday the format will change to foursomes, with the final round on Sunday modified to four-ball.
What is the Grant Thornton Invitational?
The 54-hole event is a mixed team event where 16 LPGA Tour and 16 PGA Tour pros compete together in a unique, jointly sanctioned tournament.
The three-day tournament features three different formats of team play and allows 32 players to compete for equal prize money and visibility.
This tournament is the first to be jointly sanctioned by the LPGA Tour and PGA Tour since the JCPenney Classic in 1999, and was launched in 2023 and included in the tournament schedule for the second consecutive year.
Watch the Grant Thornton Invitational live on Sky Sports all week long. Live coverage of the second round will begin on Sky Sports Golf from 7pm on Saturday. Stream the PGA Tour and more with NOW.
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