Scottie Scheffler and Tom Kim gorged themselves on pizza to get their shared birthday celebration out of the way before turning their focus to golf this week.

When they tee it up on the big day, they will be fighting for the lead at the Travelers Championship.

Kim shot an 8-under-par 62 on Thursday in the first round at the TPC River Highlands, good for a 2-stroke lead in the final limited field, no-cut signature event on this year’s PGA Tour schedule. Scheffler, the world’s No. 1 player, was tied for sixth, 3 shots back.

Kim birdied the last two holes to separate himself from the four players tied at minus-6 on the 6,835-yard, par-70 course: Rickie FowlerAkshay BhatiaKurt Kitayama and Will Zalatoris.

Scheffler was among seven players at 5 under, looking again like the best player in the world a week after finishing tied for 41st at Pinehurst No. 2, his worst performance of the year. Wyndham Clark, who tied for 56th in his U.S. Open defense, was another shot back at 4 under.