McSpadden, Mark W
Current rating: 1518
Record: 4-3
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 224 | Neidlinger, Marc T (1500) | Lost 0-2 | -181482 |
| 2sealed | 554 | White, Benjamin (1449) | Won 2-1 | +171499 |
| 3sealed | 305 | Cahill, Steve (1501) | Won 2-1 | +181517 |
| 4sealed | 267 | Tran, Phuong (1530) | Won 2-0 | +191536 |
| 5sealed | 108 | Ponce, Joseph K (1536) | Won 2-0 | +181554 |
| 6sealed | 137 | Steelman, Joshua (1556) | Lost 1-2 | -181536 |
| 7sealed | 147 | Wiltsey, Wardon (1536) | Lost 0-2 | -181518 |
| average opponent: 1516record: 4-3 | new rating: 1518 | |||