A record-tying eight players share the first-round lead at 118 Visa Argentina Open presented by Macro.

Charting the co-leaders

Cole Hammer (T1/6-under)

• Cards a 6-under 64 with seven birdies (Nos. 3, 5, 6, 10, 11, 13, 15) against one bogey (No. 17)
• First lead/co-lead of any kind in what is his 50th start on Tour (previous best 18-hole position: T2/2024 LECOM Suncoast Classic/finished T54)
• Finished T10 in the 117th Visa Argentina Open presented by Macro; his only previous start at the event
• Owns one made cut in four starts this season; T54 at The Bahamas Great Abaco Classic at The Abaco Club
• Finished No. 65 on the 2024 Korn Ferry Tour Points List to earn fully exempt status for the 2025 season

Rob Oppenheim (T1/6-under)

• Turns in a bogey-free 6-under 64, making birdies at Nos. 2, 3, 10, 11, 14, 18.
• Made the cut in all four starts this season with two top-25 finishes (best finish: T15/The Bahamas Golf Classic at Atlantis Paradise Island)
• Third career 18-hole lead/co-lead on Tour (last: 2024 Astara Chile Classic presented by Scotiabank/finished T20)
• Owns 104 career starts on the PGA TOUR with 51 made cuts and four top-10 finishes (best finish: T7/2021 Puerto Rico Open)

Chandler Blanchet (T1/6-under)

• Made birdie on his final four holes of the day (Nos. 15-18) en route to a 6-under 64
• Second 18-hole lead/co-lead of his Korn Ferry Tour career (2024 The Bahamas Golf Classic/finished T25)
• Has finished inside the top 25 in all three previous starts at the Visa Argentina Open presented by Macro, including two top-five results (best: T4/2021 Visa Argentina Open)
• Began the 2025 season with conditional status after a No. 84 finish on the 2024 Korn Ferry Tour Points List; and finished T13 at the 2025 Astara Golf Championship presented by Mastercard to improve his position in the priority ranking and earn a start in this week’s field

Grant Hirschman (T1/6-under)

• Cards a bogey-free 6-under 64, highlighted by an eagle on the 550-yard par-5 15th; his lowest round since the 2024 Veritex Bank Championship (63/Round 2)
• Second 18-hole lead/co-lead of his Korn Ferry Tour career in what is his 121st start (2019 Price Cutter Charity Championship presented by Hiland Dairy Foods/finished T4)
• Seeking first made cut of the season in what is his fifth start
• Earned starts in the first 12 events of the 2025 season with a T8 finish at Final Stage of 2024 PGA TOUR Q-School presented by Korn Ferry

Tyler Duncan (T1/6-under)

• Records his lowest round of the season with a 6-under 64 (previous: 65/The Bahamas Golf Classic/Round 2)
• Made three cuts in four starts this year on Tour, including a T17 finish at the Panama Championship
• Third career 18-hole lead/co-lead in any PGA TOUR-sanctioned event (last: 2018 Procore Championship/finished T5)
• Owns 206 PGA TOUR starts with a victory at the 2019 RSM Classic
• Finished T14 at Final Stage of 2024 PGA TOUR Q-School to earn starts in the first 12 events of the 2025 Korn Ferry Tour season

Justin Suh (T1/6-under)

• Made birdie on the par-4 18th to card a 6-under 64, matching his low round of the season (The Great Abaco Classic/Round 2)
• First 18-hole lead/co-lead of his career on Tour in what is his 35th start (previous best 18-hole position: 2nd/twice)
• Making second career start at the Visa Argentina Open; finished T7 in 2019
• Finished No. 1 on the 2022 Korn Ferry Tour Points List to earn his first PGA TOUR card, fueled by a victory at the Korn Ferry Tour Championship presented by United Leasing & Finance to claim the top spot

Samuel Anderson (T1/6-under)

• A Korn Ferry Tour rookie, first career 18-hole lead/co-lead of his Korn Ferry Tour career (previous best 18-hole position: T4/The Great Abaco Classic at The Abaco Club)
• Making third career start at the Visa Argentina Open presented by Macro (best finish: T47/2021)
• Made eight cuts in 16 starts on PGA TOUR Americas last season with five top-10s to finish No. 15 in the Fortinet Cup
• Earned medalist honors at Second Stage of 2024 PGA TOUR Q-School to earn guaranteed starts in the first eight events of the 2025 Korn Ferry Tour season

Marcelo Rozo (T1/6-under)

• Records a 6-under 64; his lowest opening round since the 2024 Utah Championship presented by Zions Bank and Intermountain Health (64)
• First 18-hole lead/co-lead in what is his 129th start on the Korn Ferry Tour
• Making seventh career start at the Visa Argentina Open
• Won the 108th Visa Argentina Open in 2013 for his first professional victory
• Owns three made cuts in four starts this season; best result came at his home event in Colombia, Astara Golf Championship, where he finished T19
• Finished T43 at Final Stage of 2024 PGA TOUR Q-School to earn starts in the first eight events of the season after finishing No. 128 on the 2024 Korn Ferry Tour Points List

Additional Notes

• Fourth official occurrence in Tour history in which eight players have shared the 18-hole lead (last: 2012 Chiquita Classic).