| 31st U.S. Senior Open Championship - Player Scorecard | |
| Updated 4:17 p.m. PDT | |
| * = Denotes 10th Tee Start; (a) = Denotes Amateur | |
| James Mason | ![]() |
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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 | 5 | 4 | 4 | 4 | 4 | 6 | 4 | 5 | 3 | 39 | 4 | 5 | 4 | 3 | 4 | 4 | 4 | 3 | 5 | 36 | 75 |
| Round 2 | 4 | 3 | 4 | 4 | 3 | 5 | 4 | 4 | 3 | 34 | 3 | 5 | 5 | 4 | 5 | 4 | 5 | 3 | 4 | 38 | 72 |
| Round 3 | 5 | 6 | 4 | 3 | 3 | 4 | 4 | 4 | 4 | 37 | 4 | 6 | 4 | 3 | 5 | 6 | 4 | 3 | 6 | 41 | 78 |
| Round 4 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 3 | 37 | 3 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 4 | 36 | 73 |
| -- Statistical Summary -- | |||||
| Round 1 | Round 2 | Round 3 | Round 4 | Overall | |
| Score | +5 75 | +2 72 | +8 78 | +3 73 | +18 298 |
| Average Drive | 266.0 | 285.0 | 266.0 | 192.5 | 252.4 |
| Fairways Hit Percentage | 9/14 64% | 6/14 43% | 6/14 43% | 2/14 14% | 23/56 41% |
| Greens in Regulation Percentage | 9/18 50% | 12/18 67% | 8/18 44% | 7/18 39% | 36/72 50% |
| Putts Per Round Putts Per Hole | 31/18 1.72 | 32/18 1.78 | 32/18 1.78 | 28/18 1.56 | 123/72 1.71 |
| Eagles | 0 | 1 | 0 | 0 | 1 |
| Birdies | 1 | 1 | 1 | 2 | 5 |
| Pars | 12 | 11 | 10 | 11 | 44 |
| Bogeys | 4 | 5 | 5 | 5 | 19 |
| Double Bogeys | 1 | 0 | 2 | 0 | 3 |
| Other | 0 | 0 | 0 | 0 | 0 |
| Par 3's | +1 | +1 | +1 | +2 | +5 |
| Par 4's | +5 | +3 | +5 | +2 | +15 |
| Par 5's | -1 | -2 | +2 | -1 | -2 |