Foster, Thomas
Current rating: 1455
Record: 5-8
| Grand Prix Los Angeles 2018 (M19 standard) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 112 | Neumann, Thomas (1522) | Lost 1-2 | -171451 |
| 2standard | 381 | Steinmetz, Kegan (1479) | Won 2-1 | +191470 |
| 3standard | 286 | Freitas, Peter (1458) | Won 2-0 | +181488 |
| 4standard | 214 | Rudd, Adin (1512) | Lost 1-2 | -181470 |
| 5standard | 293 | Wu, Jia (1649) | Lost 0-2 | -151455 |
| average opponent: 1524record: 2-3 | new rating: 1455 | |||
| Grand Prix San Jose 2017 (AER limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 310 | Leon, Nicholas (1500) | Won 2-1 | +181518 |
| 2sealed | 131 | Vinson, Daniel (1587) | Lost 0-2 | -171501 |
| 3sealed | 549 | Buckendorf, Eric (1671) | Lost 0-2 | -151486 |
| 4sealed | 651 | Olbourne, Linda (1487) | Won 2-0 | +181504 |
| 5sealed | 462 | Saraceno, Ben (1498) | Won 2-0 | +181522 |
| 6sealed | 444 | Latour, Benoit (1577) | Lost 1-2 | -171505 |
| 7sealed | 427 | Green, Perry (1499) | Lost 0-2 | -181487 |
| 8sealed | 517 | Kolbe, Brandon (1453) | Lost 0-2 | -191468 |
| average opponent: 1534record: 3-5 | new rating: 1468 | |||