Griffith, Michael
Current rating: 1568
Record: 22-19-1
| Grand Prix Cleveland 2015 (FRF limited) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 586 | Heywood, Sam (1518) | Won 2-0 | +181574 |
| 2sealed | 28 | Dymerski, Matt (1515) | Lost 0-2 | -191555 |
| 3sealed | 670 | Richter, David (1468) | Won 2-1 | +161571 |
| 4sealed | 356 | Johnson, Courtney (1535) | Won 2-1 | +171588 |
| 5sealed | 328 | Ferguson, Josh (1566) | Won 2-1 | +181606 |
| 6sealed | 214 | Wayne, Brad (1540) | Lost 1-2 | -191587 |
| 7sealed | 193 | Dwyer, Matthew (1534) | Lost 1-2 | -191568 |
| top | average opponent: 1525record: 4-3 | new rating: 1568 | ||
| Grand Prix Washington DC 2014 (JOU limited) | starting rating: 1593 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 59 | Brestel, Troy (1854) | Lost 1-2 | -141579 |
| 3sealed | 416 | Fessel, Eric (1499) | Lost 1-2 | -191560 |
| 4sealed | 508 | Wilson, Alex 2 (1480) | Won 2-0 | +161576 |
| 5sealed | 352 | Taylor, Joshua J. (1468) | Lost 0-2 | -201556 |
| top | average opponent: 1575record: 1-3 | new rating: 1556 | ||
| Grand Prix Philadelphia 2014 (BNG limited) | starting rating: 1529 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 423 | Morrill, Alex (1591) | Won 2-0 | +191548 |
| 2sealed | 104 | Hayman, Carl (1393) | Won 2-0 | +151563 |
| 3sealed | 24 | Fleming, Sean (1525) | Won 2-0 | +171580 |
| 4sealed | 138 | Gerhardt, Scott (1697) | Won 2-1 | +201600 |
| 5sealed | 15 | Arnold, Jarod (1617) | Lost 0-2 | -171583 |
| 6sealed | 182 | Tom, Kar Yung (1911) | Won 2-1 | +231606 |
| 7sealed | 98 | Parshall, William (1641) | Won 2-0 | +191625 |
| 8sealed | 30 | Rubin, Steve (1842) | Lost 0-0 | -141611 |
| 9sealed | 168 | Ritrovato, Ryan (1583) | Lost 1-2 | -181593 |
| top | average opponent: 1644record: 6-3 | new rating: 1593 | ||
| Grand Prix Montreal 2014 (BNG limited) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 159 | Xing, Paul (1454) | Won 2-1 | +171503 |
| 2sealed | 130 | Nixon, Jon R (1554) | Lost 1-2 | -171486 |
| 3sealed | 546 | Poirier, Maxime (1484) | Won 2-1 | +181504 |
| 4sealed | 537 | Lazaro, Andrew (1611) | Won 2-1 | +201524 |
| 5sealed | 341 | Wong, Luan (1578) | Won 2-0 | +191543 |
| 6sealed | 58 | Dubreuil, Patrice (1563) | Lost 1-2 | -171526 |
| 7sealed | 207 | Giancoulas, Donald (1617) | Won 2-0 | +191545 |
| 8sealed | 103 | Garant-Rousseau, Guillaume (1626) | Lost 1-2 | -161529 |
| top | average opponent: 1561record: 5-3 | new rating: 1529 | ||
| Grand Prix Nashville 2012 (DKA limited) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 43 | LeBouef, Brad (1447) | Lost 1-2 | -191487 |
| 2sealed | 293 | Lawhorn, Casey (1482) | Won 2-0 | +171504 |
| 3sealed | 215 | Cochran, Jedidiah (1501) | Won 2-1 | +181522 |
| 4sealed | 308 | Jones, Christopher (1474) | Won 2-0 | +181540 |
| 5sealed | 220 | Andress, Nathan (1650) | Won 2-1 | +201560 |
| 6sealed | 60 | Shu, Jason (1554) | Lost 0-2 | -191541 |
| 7sealed | 199 | Autin, Benjamin (1467) | Lost 0-2 | -191522 |
| 8sealed | 182 | Herndon, Daniel (1516) | Lost 0-2 | -181504 |
| 9sealed | 183 | Wilson, Jake (1503) | Lost 0-2 | -181486 |
| top | average opponent: 1510record: 4-5 | new rating: 1486 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 129 | Gibson, Max (1500) | Won 2-1 | +181518 |
| 2legacy | 139 | Stoddard, Samuel (1747) | Lost 1-2 | -141504 |
| 3legacy | 169 | Cline, Matthew (1556) | Lost 0-2 | -171487 |
| 4legacy | 242 | Uridil, Sean (1482) | Won 2-0 | +181505 |
| 5legacy | 188 | Azzano, Douglas (1541) | Draw 1-1 | +11506 |
| top | average opponent: 1565record: 2-2-1 | new rating: 1506 | ||