PGA Championship Round 1: What to know as Scottie Scheffler, 6 others share lead

Key Points:

• Seven players share the lead at 3 under after Round 1 at Aronimink Golf Club, marking the largest tie for the lead after any round in a men's major since 1977, with 48 players within three shots of the lead, the most in modern major history.
• Aronimink played significantly tougher than in the 2018 FedExCup Playoffs, with 11 holes over par and a much lower greens in regulation rate (63.2% vs. 77.4%), highlighting the challenge posed by rough, tight hole locations, chilly temperatures, and wind.
• World No. 1 and defending champion Scottie Scheffler is among the leaders, becoming just the third defending PGA champ to share the 18-hole lead and excelling particularly on the greens and off the tee with 12 consecutive fairways hit.
• Former world No. 1 Martin Kaymer shot his lowest major round in over 2,100 days to join the lead group at 3 under, while rising stars like Aldrich Potgieter and Min Woo Lee also contend, with Potgieter being the youngest leader after any PGA round since 1999.
• Notable players such as Rory McIlroy and Bryson DeChambeau struggled, with McIlroy shooting 74 and making bogey on his last four holes, and DeChambeau posting a 76 and facing the risk of missing the cut for the second consecutive major this season.