roberts, michael w
Current rating: 1557
Record: 6-3
| Grand Prix Columbus 2007 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 234 | Weeks, Russell (1500) | Won 2-0 | +181518 |
| 2legacy | 194 | O'Donnell, Brendan (1650) | Won 2-1 | +201538 |
| 3legacy | 56 | Foley, Patrick D (1539) | Won 2-1 | +181556 |
| 4legacy | 41 | Rocha, Jerret (1639) | Lost 1-2 | -161540 |
| 5legacy | 128 | Senneway, Bill (1536) | Won 2-1 | +181558 |
| 6legacy | 100 | Huang, Don (1663) | Lost 0-2 | -161542 |
| 7legacy | 128 | Neely, Frank H (1535) | Won 2-1 | +181560 |
| 8legacy | 82 | Sutton, Christopher (1436) | Lost 0-2 | -211539 |
| 9legacy | 132 | Young, Justin (1532) | Won 2-1 | +181557 |
| average opponent: 1559record: 6-3 | new rating: 1557 | |||