Valentine, William
Current rating: 1484
Record: 2-3
| Grand Prix Houston 2018 (RIX limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 164 | Kluiters, Maarten (1463) | Lost 0-2 | -191481 |
| 2sealed | 216 | Rodriguez, Tommy (1482) | Won 2-0 | +181499 |
| 3sealed | 319 | Cheng, Jonathan (1671) | Lost 0-2 | -151484 |
| 4sealed | 374 | Espadas, Alfonso (1487) | Lost 1-2 | -181466 |
| 5sealed | 354 | Chandler, Marcus (1436) | Won 2-0 | +181484 |
| average opponent: 1508record: 2-3 | new rating: 1484 | |||