| 31st U.S. Senior Open Championship - Player Scorecard | |
| Updated 4:17 p.m. PDT | |
| * = Denotes 10th Tee Start; (a) = Denotes Amateur | |
| Mark Nickeas (a) | ![]() |
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| Hole | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | Out | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | In | Total |
| Yards | 403 | 508 | 415 | 392 | 190 | 480 | 420 | 443 | 205 | 3456 | 400 | 545 | 455 | 170 | 370 | 413 | 375 | 212 | 470 | 3410 | 6866 |
| Par | 4 | 5 | 4 | 4 | 3 | 4 | 4 | 4 | 3 | 35 | 4 | 5 | 4 | 3 | 4 | 4 | 4 | 3 | 4 | 35 | 70 |
| Round 1 | 4 | 5 | 5 | 4 | 4 | 5 | 5 | 6 | 3 | 41 | 4 | 6 | 7 | 4 | 5 | 4 | 4 | 4 | 4 | 42 | 83 |
| Round 2 | 5 | 5 | 4 | 4 | 4 | 4 | 5 | 4 | 5 | 40 | 5 | 5 | 6 | 4 | 5 | 4 | 4 | 3 | 5 | 41 | 81 |
| Round 3 | |||||||||||||||||||||
| Round 4 | |||||||||||||||||||||
| -- Statistical Summary -- | |||||
| Round 1 | Round 2 | Round 3 | Round 4 | Overall | |
| Score | +13 83 | +11 81 | NaN | ||
| Average Drive | 273.0 | 273.0 | 273.0 | ||
| Fairways Hit Percentage | 6/14 43% | 8/14 57% | 0/0 NaN% | 0/0 NaN% | 14/28 50% |
| Greens in Regulation Percentage | 7/18 39% | 6/18 33% | 0/0 NaN% | 0/0 NaN% | 13/36 36% |
| Putts Per Round Putts Per Hole | 35/18 1.94 | 32/18 1.78 | 0/0 NaN | 0/0 NaN | 67/36 1.86 |
| Eagles | 0 | 0 | 0 | 0 | 0 |
| Birdies | 0 | 0 | 0 | 0 | 0 |
| Pars | 8 | 9 | 0 | 0 | 17 |
| Bogeys | 8 | 7 | 0 | 0 | 15 |
| Double Bogeys | 1 | 2 | 0 | 0 | 3 |
| Other | 1 | 0 | 0 | 0 | 1 |
| Par 3's | +3 | +4 | Even | Even | +7 |
| Par 4's | +9 | +7 | Even | Even | +16 |
| Par 5's | +1 | Even | Even | Even | +1 |