Things to Know

• 51-year-old Greg Chalmers opened with eight birdies and one-bogey for 64 and holds a two-stroke lead over Rod Pampling, Stephen Ames and World Golf Hall of Fame member Ernie Els.

Greg Chalmers, 32-32 – 64 (-7)

• This is his low 18-hole score on PGA TOUR Champions (71st round).
  • Previous low 18-hole score: 66 (Twice: Last, 2024 Charles Schwab Cup Championship, Final Round)
• This is second time leading/co-leading after any round on PGA TOUR Champions.
  • Previous best position: T1 (2024 Senior PGA Championship, Third Round)
• The 51-year-old seeks his first win on PGA TOUR Champions (23rd start).
  • Best finish: 3rd (Twice: Last, 2024 Constellation FURYK & FRIENDS)
  • Lone victory in 485 PGA TOUR starts came at the 2016 Barracuda Championship
• Making his third start of the 2025 season, he finished T14 at the Trophy Hassan II
• One year after making his PGA TOUR Champions debut through Monday qualifying, he is making his second appearance at the Cologuard Classic by Exact Sciences (T7/2024)

Other notes

• Rod Pampling sits T2 after carding a bogey-free 5-under 66. The 55-year-old seeks his third win on PGA TOUR Champions (119th start).
  • Last win: 2023 SAS Championship
  • Making his sixth appearance in the Cologuard Classic by Exact Sciences
  • Best finish: T3/2021
• Stephen Ames sits T2 after opening with bogey-free 66. The 60-year-old seeks his 10th win on PGA TOUR Champions (224th start).
  • Last win: 2024 Boeing Classic
  • Making his 11th start in the Cologuard Classic by Exact Sciences
  • Best finish: T4/2016
• Despite bogeying three holes, World Golf Hall of Fame member Ernie Els carded 5-under 66 and sits T2. The 55-year-old seeks his eighth win on PGA TOUR Champions and second this season (108th start).
  • Last win: 2025 Mitsubishi Electric Championship at Hualalai
  • Making his sixth start in the Cologuard Classic by Exact Sciences
  • Best finish: T14/2021
• Five players are T5 at 4-under, including Jason Caron, Tim O’Neal, World Golf Hall of Fame member Retief Goosen, Stewart Cink and Monday qualifier, Matthew Goggin.
• 2024 Cologuard Classic champion Joe Durant opened with 1-under 70 and sits T22.