O'Brien, Victor
Current rating: 1499
Record: 4-4
| Grand Prix Oakland 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 18 | Miller, Raymond (1494) | Lost 1-2 | -181482 |
| 2modern | 372 | McKee, Noah (1479) | Won 2-0 | +181500 |
| 3modern | 349 | Tilenius, Liam (1472) | Won 2-1 | +171517 |
| 4modern | 236 | Heitzman, Eric (1449) | Won 2-1 | +171534 |
| 5modern | 218 | Alotri, Fouad (1534) | Won 2-0 | +181552 |
| 6modern | 92 | Merlin, Nicholas (1764) | Lost 1-2 | -141538 |
| 7modern | 238 | Castro, Angel (1441) | Lost 1-2 | -201518 |
| 8modern | 187 | Vineza, James Adrian (1448) | Lost 0-2 | -191499 |
| average opponent: 1510record: 4-4 | new rating: 1499 | |||