| Greg O'Brien | Par | Round 1 | Round 2 | Round 3 | Round 4 | Overall | ||||||
| 1 | Dustin JOHNSON | 4 | 4 | E | 4 | E | 4 | E | 3 | -1 | -1 | |
| 2 | Brooks KOEPKA | 4 | 5 | +1 | 3 | -1 | 5 | +1 | 4 | E | +1 | |
| 3 | Louis OOSTHUIZEN | 3 | 3 | E | 3 | E | 3 | E | 3 | E | E | |
| 4 | Jordan SPIETH | 4 | 4 | E | 3 | -1 | 3 | -1 | 5 | +1 | -1 | |
| 5 | Shane LOWRY | 4 | 4 | E | 5 | +1 | 4 | E | 4 | E | +1 | |
| 6 | Louis OOSTHUIZEN | 3 | 3 | E | 3 | E | 3 | E | 3 | E | E | |
| 7 | Brian HARMAN | 5 | 5 | E | 4 | -1 | 5 | E | 5 | E | -1 | |
| 8 | Louis OOSTHUIZEN | 4 | 3 | -1 | 4 | E | 4 | E | 4 | E | -1 | |
| 9 | Brooks KOEPKA | 4 | 3 | -1 | 3 | -1 | 4 | E | 3 | -1 | -3 | |
| 10 | Brian HARMAN | 4 | 4 | E | 5 | +1 | 4 | E | 4 | E | +1 | |
| 11 | Shane LOWRY | 3 | 4 | +1 | 3 | E | 3 | E | 3 | E | +1 | |
| 12 | Jordan SPIETH | 4 | 4 | E | 3 | -1 | 4 | E | 4 | E | -1 | |
| 13 | Dustin JOHNSON | 4 | 4 | E | 3 | -1 | 4 | E | 4 | E | -1 | |
| 14 | Shane LOWRY | 5 | 5 | E | 5 | E | 5 | E | 5 | E | E | |
| 15 | Brooks KOEPKA | 4 | 4 | E | 5 | +1 | 4 | E | 4 | E | +1 | |
| 16 | Jordan SPIETH | 3 | 2 | -1 | 3 | E | 3 | E | 3 | E | -1 | |
| 17 | Brian HARMAN | 4 | 4 | E | 4 | E | 3 | -1 | 4 | E | -1 | |
| 18 | Dustin JOHNSON | 4 | 4 | E | 3 | -1 | 4 | E | 3 | -1 | -2 | |
| TOTAL | 70 | 69 | -1 | 66 | -4 | 69 | -1 | 68 | -2 | -8 | ||
| Holes Played / Rank | 18 | 400th | 18 | 171st | 18 | 277th | 18 | 363rd | 109th | |||
| Updated 18/07/21 18:45:21 | O21-00074 | |||||||||||
| Explanation: 'X20' means that twenty people in the competition have chosen the hole for that particular player. | ||||||||||||