Griffin, Martin
Current rating: 1486
Record: 7-8
| Grand Prix London 2013 (GTC limited) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 247 | Vorel, Jiri (1644) | Lost 0-2 | -151465 |
| 2sealed | 529 | Morais, Goncalo (1481) | Won 2-0 | +181483 |
| 3sealed | 521 | Bruno, Giuliano (1509) | Won 2-0 | +191502 |
| 4sealed | 413 | Fossberg, Marc (1452) | Won 2-1 | +171519 |
| 5sealed | 297 | McLeod, Lewis (1546) | Lost 1-2 | -181501 |
| 6sealed | 447 | Wheeler, Josh (1522) | Won 2-0 | +191520 |
| 7sealed | 310 | Magee, Conor (1491) | Lost 0-2 | -191501 |
| 8sealed | 338 | Hilty, Frederic (1651) | Lost 0-2 | -151486 |
| average opponent: 1537record: 4-4 | new rating: 1486 | |||
| Grand Prix Lyon 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 116 | Forte, Frederic (1406) | Lost 1-2 | -201480 |
| 2modern | 190 | Roth, Lukas (1546) | Won 2-1 | +191499 |
| 3modern | 145 | Bethke, Patrick (1542) | Lost 0-2 | -171482 |
| 4modern | 296 | Caroli, Jimmy (1383) | Won 2-0 | +161498 |
| 5modern | 187 | Creaney, Ryan (1437) | Won 2-1 | +171515 |
| 6modern | 205 | Simpson, Jason (1506) | Lost 1-2 | -181497 |
| 7modern | 166 | Chelil, Mehdi (1549) | Lost 0-2 | -171480 |
| average opponent: 1481record: 3-4 | new rating: 1480 | |||