Valentine, John
Current rating: 1527
Record: 6-5
| Grand Prix Oakland 2019 (modern) | starting rating: 1534 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 42 | Keeline, Chris (1485) | Won 2-1 | +171551 |
| 4modern | 115 | Eakins, Loren (1774) | Lost 0-2 | -141537 |
| 5modern | 120 | Rubin, Steve (1957) | Lost 0-2 | -101527 |
| average opponent: 1738record: 1-2 | new rating: 1527 | |||
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1199 | Miller, Samuel (1500) | Won 2-0 | +181518 |
| 2sealed | 1072 | Madden-Fong, Jesse (1482) | Won 2-1 | +171535 |
| 3sealed | 1023 | Paraschiv, Vlad (1500) | Won 2-0 | +181553 |
| 4sealed | 1034 | Voellmer, Andy (1543) | Lost 1-2 | -181535 |
| 5sealed | 1087 | Salts, Matt (1559) | Lost 0-2 | -181517 |
| 6sealed | 1119 | Baker, Travis (1516) | Won 2-1 | +181535 |
| 7sealed | 1121 | Darmousseh, Michael (1568) | Won 2-1 | +191554 |
| 8sealed | 1072 | Snider, Warren (1483) | Lost 0-2 | -201534 |
| average opponent: 1519record: 5-3 | new rating: 1534 | |||