Coughlan, Michael
Current rating: 1548
Record: 7-5
| Grand Prix Richmond 2014 (modern) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 45 | Bernett, Evan (1528) | Won 2-1 | +181551 |
| 2modern | 62 | Collins, Eric (1453) | Lost 0-2 | -201531 |
| 3modern | 418 | Cullerton, Evan (1428) | Won 2-1 | +161547 |
| 4modern | 439 | Phillips, Kristof (1499) | Won 2-0 | +171564 |
| 5modern | 181 | Shtilkind, Konstantin (1683) | Lost 1-2 | -161548 |
| average opponent: 1518record: 3-2 | new rating: 1548 | |||
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 99 | Ascroft, Chris (1500) | Won 2-0 | +181518 |
| 2extended | 3 | Freedman, Jerry (1709) | Lost 1-2 | -151503 |
| 3extended | 287 | Kinney, Michael (1502) | Won 2-1 | +181521 |
| 4extended | 144 | Yoo, Bradley (1673) | Won 2-0 | +211542 |
| 5extended | 184 | Vitullo, Joshua (1539) | Won 2-0 | +181560 |
| 6extended | 41 | Berkowitz, Jordan (2054) | Lost 0-2 | -101550 |
| 7extended | 181 | Perdue, Justin (1561) | Lost 0-2 | -171533 |
| average opponent: 1648record: 4-3 | new rating: 1533 | |||