Louis Brown, 61, of Marietta, Ga.
- Not ranked in World Amateur Golf Ranking®/WAGR®
- Competing in his sixth USGA championship and third U.S. Senior Amateur
- Advanced to match play in the U.S. Senior Amateur in 2018 and 2023
- Made his first USGA start in 1981 when he reached the U.S. Junior Amateur quarterfinals
- Played as a professional on the PGA, Canadian, Nike and Australian tours
- Won the 1985 Georgia State Amateur and was runner-up in 1982 and 1984
- Two-time All-Southeastern Conference (SEC) selection at the University of Georgia
- Partner and wealth advisor for a financial investment firm
- First Tee volunteer and founded Evergreen Society that gives back to the game
Road to the Quarterfinals
- Shot 73-70–143 in stroke play to earn the No. 3 seed
- R64: Def. Keith Lundquist, 2 and 1
- R32: Def. Jack Hall, 2 up
- R16: Def. Paul Smith, 6 and 5
Dave Bunker, 59, of Canada
- No. 2,570 in World Amateur Golf Ranking®/WAGR®
- Playing in his fourth U.S. Senior Amateur
- Medalist in qualifying with a 4-under 68 at Stafford (N.Y.) Country Club on Aug. 6
- Reached the U.S. Senior Amateur semifinals in 2021 at the Country Club of Detroit
- Competed in two U.S. Senior Opens and three U.S. Mid-Amateurs
- Made Round of 16 in the 2009 U.S. Mid-Amateur, losing to eventual champion Nathan Smith
- Won the 2021 Florida State Golf Association Senior Amateur
- Member of Ontario Golf Hall of Fame and has twice played in the PGA Tour’s Canadian Open
- Retired middle school teacher and boys’ and girls’ basketball coach in Ridgeway, Ontario
Road to the Quarterfinals
- Shot 75-80–155 in stroke play to earn the No. 48 seed
- R64: Def. Brian Hoops, 1 up
- R32: Def. Stephen Creed, 5 and 3
- R16: Def. John Kemp, 19 holes
Mark Knecht, 61, of Paducah, Ky.
- Not ranked in World Amateur Golf Ranking®/WAGR®
- Competing in his second U.S. Senior Amateur
- Reached championship field following a 2-for-1 playoff in the Richmond, Ky., qualifier on July 29
- Defeated 1997 U.S. Mid-Amateur runner-up Rick Stimmel in the Round of 16
- Advanced to the Round of 16 in 2019 U.S. Senior Amateur at Old Chatham Golf Club
- Has previously played in eight USGA championships and the 2010 USGA Men’s State Team
- In 2020, he became the first player in 16 years to win Kentucky’s Senior Open and Senior Amateur
- Posted wire-to-wire victory in 2018 Azalea Senior Invitational at the C.C. of Charleston
- Two of his seven career holes-in-one have come on The Honors Course’s 14th hole
- Works as a property manager
Road to the Quarterfinals
- Shot 74-75–149 in stroke play to earn the No. 12 seed
- R64: Def. Craig Miyamoto, 19 holes
- R32: Def. Jerry Achilles, 4 and 3
- R16: Def. Rick Stimmel, 4 and 2
Robert Nelson, 63, of Fairhope, Ala.
- No. 3,258 in World Amateur Golf Ranking®/WAGR®
- Competing in his third USGA championship and second U.S. Senior Amateur
- Medalist with a bogey-free 67 in the Anniston, Ala., qualifier on Aug. 7
- Reached match play but lost to Chip Lutz in the 2021 Senior Amateur at the Country Club of Detroit
- Avenged that Lutz loss by defeating the 2015 Senior Amateur winner in this year’s Round of 32
- Defeated 2019 U.S. Senior Amateur champion Bob Royak in the Round of 16
- Three-time Alabama State Senior Amateur champion and played in 2010 USGA Men’s State Team
- Attended PGA Tour Champions Q-School in 2010 and 2011 as an amateur
- Works as a healthcare business development manager
Road to the Quarterfinals
- Shot 75-81–156 in stroke play to earn the No. 55 seed
- R64: Def. Ronald Ewing, 2 and 1
- R32: Def. Chip Lutz, 1 up
- R16: Def. Bob Royak, 3 and 1
Matt Sughrue, 64, of Arlington, Va.
- No. 437 in World Amateur Golf Ranking®/WAGR®
- Competing in his 23rd USGA championship and eighth U.S. Senior Amateur
- Runner-up to Dave Ryan in the 2016 U.S. Senior Amateur at Old Warson Country Club
- Has a 17-7 Senior Amateur match-play record and reached quarterfinals four times
- Competed in three U.S. Senior Opens and two U.S. Amateurs
- Runner-up in the 2015 R&A Senior Amateur at Royal County Down
- Worked in insurance for 25 years before attending Virginia Tech to become a psychotherapist
- Became a family therapist at SERVE, a 90-bed home shelter for families in Manassas, Va., as part of his thesis
- Now in private practice assisting elite athletes with their mental approach and performance
Road to the Quarterfinals
- Shot 73-76–149 in stroke play to earn the No. 13 seed
- R64: Def. Maxwell Fain, 3 and 2
- R32: Def. Bryan Norton, 5 and 4
- R16: Def. Tim Dunlavey, 3 and 1
Daniel Sullivan, 57, of Pasadena, Calif.
- No. 3,276 in World Amateur Golf Ranking®/WAGR®
- Competing in his first U.S. Senior Amateur
- Has previously played in 12 USGA championships and 2014 USGA Men’s State Team
- Advanced to the U.S. Mid-Amateur’s semifinal round in 2016 and 2017
- Reached Round of 16 in 2009 U.S. Amateur Public Links, losing to the eventual champion
- Runner-up to Robert Gerwin in this year’s George C. Thomas Invitational at The Los Angeles C.C.
- Also runner-up in this year’s Lupton Memorial (senior division) at The Honors Course
- In 2023, he captured his third SCGA Public Links Championship in a playoff
- Played intramural golf at USC while focusing on a degree in business administration
- Works as a real estate lender and has volunteered for the local First Tee chapter
Road to the Quarterfinals
- Shot 73-78–151 in stroke play to earn the No. 25 seed
- R64: Def. Philip Josephson, 5 and 4
- R32: Def. David Tassell, 4 and 3
- R16: Def. Jon Brown, 3 and 2
Andrew Whitacre, 61, of The Woodlands, Texas
- Not ranked in World Amateur Golf Ranking®/WAGR®
- Competing in his second USGA championship and second U.S. Senior Amateur
- Advanced to match play through the stroke-play playoff (made par on hole 10)
- Defeated USGA champions Doug Hanzel (Round of 64) and Tim Hogarth (Round of 16)
- Was medalist with a 4-under 68 in the Houston, Texas, qualifier on July 24
- Caddied at Pebble Beach (Calif.) Golf Links, including 30 AT&T National Pro-Ams
- Looped for actor/comedian Bill Murray and he won 2011 AT&T Pro-Am with D.A. Points
- Member of University of Illinois golf team and earned two varsity letters (1984-85)
- Works as a real estate and golf community developer in Greater Houston
Road to the Quarterfinals
- Shot 83-74–157 in stroke play to earn the No. 59 seed
- R64: Def. Doug Hanzel, 2 and 1
- R32: Def. Mike Finster, 1 up
- R16: Def. Tim Hogarth, 1 up
Todd White, 56, of Spartanburg, S.C.
- No. 534 in World Amateur Golf Ranking®/WAGR®
- Competing in his 34th USGA championship and second U.S. Senior Amateur
- Won last year’s U.S. Senior Amateur at Martis Camp Club, his second USGA title
- He and partner Nathan Smith won the inaugural U.S. Amateur Four-Ball in 2015
- Member of the victorious 2013 USA Walker Cup Team at National Golf Links of America
- Played in one U.S. Open (1995), three U.S. Senior Opens and six USGA Men’s State Teams
- Advanced to the U.S. Mid-Amateur semifinals in 2012 and quarterfinals in 2014 and 2015
- Added to his résumé when he claimed the 2024 R&A Senior Amateur with a final-round 69
- History teacher and boys’ and girls’ golf coach at Spartanburg High School
Road to the Quarterfinals
- Shot 77-72–149 in stroke play to earn the No. 15 seed
- R64: Def. Curtis Holck, 5 and 4
- R32: Def. Todd Burgan, 1 up
- R16: Def. Roger Newsom, 5 and 4