Tomson, Michael
Current rating: 1456
| Grand Prix Hartford 2018 (modern) | starting rating: 1440 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 482 | Frey, Richard (1548) | Won 2-1 | +201460 |
| 2modern | 334 | Gervais, Andrew (1523) | Lost 0-2 | -171443 |
| 3modern | 714 | Morosky, Jason (1498) | Won 2-0 | +191462 |
| 4modern | 207 | Yaffee, Zachary (1466) | Lost 0-2 | -181444 |
| 5modern | 422 | Breitman, Alan (1718) | Won 2-0 | +231467 |
| 6modern | 381 | Metcalf, Scott (1729) | Won 2-1 | +231490 |
| 7modern | 214 | May, Ryan (1525) | Lost 1-2 | -181472 |
| 8modern | 320 | Ruliffson, Brian (1545) | Lost 0-2 | -161456 |
| top | average opponent: 1569record: 4-4 | new rating: 1456 | ||
| Grand Prix New Jersey 2014 (legacy) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 285 | Briody, Tim (1581) | Lost 0-2 | -161466 |
| 2legacy | 495 | Miller, Daniel P (1482) | Lost 1-2 | -181448 |
| 3legacy | 631 | Cox, Richard (1429) | Won 2-1 | +181466 |
| 4legacy | 577 | Pirro, Myles (1400) | Lost 1-2 | -201446 |
| 5legacy | 537 | Horn, Nicole (1463) | Won 2-0 | +191465 |
| 6legacy | 441 | Hayward, Tom (1373) | Lost 0-2 | -201445 |
| 7legacy | 373 | Song, Jungin (1386) | Lost 1-2 | -191426 |
| 8legacy | 295 | Hoffman, Trisha (1207) | Won 2-0 | +141440 |
| top | average opponent: 1415record: 3-5 | new rating: 1440 | ||
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 131 | Moskal, Erik (1530) | Lost 0-2 | -171483 |
| 2modern | 506 | Warren, Joshua (1497) | Won 2-1 | +181501 |
| 3modern | 430 | Albanese, Nicholas (1467) | Lost 0-2 | -191482 |
| 4modern | 463 | Hartley, Tasha (1464) | Lost 0-2 | -181464 |
| 5modern | 498 | Guilfoyle, Stephen (1464) | Won 2-0 | +181482 |
| top | average opponent: 1485record: 2-3 | new rating: 1482 | ||