Hayman, Michael
Current rating: 1434
| Grand Prix Atlanta 2019 (legacy) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 148 | Ge, Yikan (1444) | Lost 0-2 | -191451 |
| 2legacy | 355 | Endick, Rosemary (1408) | Lost 0-2 | -191432 |
| 3legacy | 477 | Galindo, Hugo (1431) | Lost 1-2 | -181414 |
| 4legacy | 462 | Sainz, Raymond (1518) | Won 2-0 | +201434 |
| top | average opponent: 1450record: 1-3 | new rating: 1434 | ||
| Grand Prix Tampa Bay 2019 (modern) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 287 | Morales, Alejandro (1484) | Lost 0-2 | -171443 |
| 2modern | 362 | Theriault, Stephen (1482) | Won 2-1 | +181461 |
| 3modern | 377 | Christopher, Grant (1615) | Won 2-0 | +211482 |
| 4modern | 272 | Socci, Jason (1456) | Won 2-0 | +181500 |
| 5modern | 163 | Baker, Nicholas (1616) | Lost 0-2 | -161484 |
| 6modern | 161 | Bauer, David (1810) | Lost 1-2 | -121472 |
| 7modern | 210 | Worley, Matthew (1411) | Won 2-1 | +171489 |
| 8modern | 169 | Trinh, Micheal (1440) | Lost 0-2 | -191470 |
| top | average opponent: 1539record: 4-4 | new rating: 1470 | ||
| Grand Prix Phoenix 2014 (BNG standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 140 | Randol, Mark (1360) | Lost 1-2 | -211479 |
| 2standard | 394 | Dorsett, Ryan (1482) | Lost 1-2 | -171462 |
| 3standard | 653 | Savitz, Lukas (1464) | Won 2-1 | +181480 |
| 4standard | 510 | Lehman, Anthony (1480) | Lost 0-2 | -181462 |
| 5standard | 563 | Wells, Tristan (1463) | Lost 1-2 | -181444 |
| 6standard | 522 | Garrett, Zachary (1374) | Won 2-0 | +161460 |
| top | average opponent: 1437record: 2-4 | new rating: 1460 | ||