Vandiver, Michael
Current rating: 1417
| Grand Prix Hartford 2018 (modern) | starting rating: 1397 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 502 | Callahan-Cormier, Devin (1576) | Lost 0-2 | -141383 |
| 2modern | 610 | Higby, Christopher (1483) | Won 2-0 | +191402 |
| 3modern | 527 | Musselman, Reuben (1544) | Lost 0-2 | -151387 |
| 4modern | 654 | Boisclair, Andrew (1487) | Won 2-0 | +201407 |
| 5modern | 520 | Szylman, Dariusz (1696) | Won 2-1 | +231430 |
| 6modern | 420 | Birrell, Ian (1736) | Lost 1-2 | -131417 |
| top | average opponent: 1587record: 3-3 | new rating: 1417 | ||
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 185 | Elias, Robert (1500) | Lost 0-2 | -171450 |
| 2standard | 540 | Alvarado, Miguel (1474) | Lost 0-2 | -181432 |
| 3standard | 666 | Dunau, Bera (1464) | Lost 1-2 | -171415 |
| 4standard | 752 | Nacco, John (1446) | Lost 0-2 | -181397 |
| top | average opponent: 1471record: 0-4 | new rating: 1397 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 328 | Kelly, Matthew (1517) | Won 2-0 | +181518 |
| 3sealed | 217 | Robert, Mathieu (1538) | Lost 1-2 | -171501 |
| 4sealed | 411 | Urban, Matthew (1583) | Lost 0-2 | -171484 |
| 5sealed | 662 | Bindbeutel, Johnathan (1538) | Lost 0-2 | -171467 |
| top | average opponent: 1544record: 1-3 | new rating: 1467 | ||