Griffin, Michael
Current rating: 1399
Record: 7-14
| Grand Prix Indianapolis 2017 (HOU limited) | starting rating: 1386 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 213 | Johnson, Tyler (1378) | Lost 1-2 | -181368 |
| 2sealed | 332 | Oh, Inn (1480) | Won 2-1 | +201388 |
| 3sealed | 415 | Engle, Woodrow (1817) | Won 2-0 | +251413 |
| 4sealed | 275 | Cunningham, Joshua (1465) | Won 2-0 | +191432 |
| 5sealed | 204 | Schaefer, Charles (1535) | Lost 1-2 | -161416 |
| 6sealed | 245 | Bennett, Michael (1492) | Lost 0-2 | -171399 |
| top | average opponent: 1528record: 3-3 | new rating: 1399 | ||
| Grand Prix Minneapolis 2014 (modern) | starting rating: 1415 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 532 | Swanson, Casey (1620) | Lost 1-2 | -141401 |
| 2modern | 568 | Peterson, Kyle (1480) | Won 2-0 | +191420 |
| 3modern | 535 | NePerud, Drew (1436) | Lost 1-2 | -181402 |
| 4modern | 635 | Strausman, Shea (1470) | Lost 1-2 | -161386 |
| top | average opponent: 1502record: 1-3 | new rating: 1386 | ||
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 354 | Smutko, Peter (1572) | Lost 1-2 | -161430 |
| 2sealed | 425 | Soulati, Reza (1484) | Lost 0-2 | -171413 |
| 3sealed | 516 | Jenkins-White, Alec (1463) | Won 2-0 | +191432 |
| 4sealed | 374 | Rufer, Stephen D (1482) | Lost 0-2 | -171415 |
| top | average opponent: 1501record: 1-3 | new rating: 1415 | ||
| Grand Prix Minneapolis 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 63 | Driskill, Robert (1500) | Lost 1-2 | -181482 |
| 2block | 130 | Monk, Derek (1478) | Lost 0-2 | -181464 |
| 3block | 173 | Whitlock, Lee (1464) | Lost 0-2 | -181446 |
| 4block | 180 | Alongi, Anthony (1447) | Won 2-0 | +181464 |
| 5block | 153 | Barron, Raymond (1464) | Lost 0-2 | -181446 |
| 6block | 141 | Snyder, Mike (1446) | Lost 0-2 | -181428 |
| 7block | 125 | Frank, Troy (1428) | Won 2-1 | +181446 |
| top | average opponent: 1461record: 2-5 | new rating: 1446 | ||