Knudson, Mark
Current rating: 1561
Record: 6-3
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 382 | Adamson, Victor (1500) | Won 2-1 | +181518 |
| 2sealed | 89 | Seaver, Joseph M (1518) | Won 2-0 | +181536 |
| 3sealed | 109 | Peterson, Michael (1460) | Lost 0-2 | -191517 |
| 4sealed | 258 | Rodriguez, Jason m (1519) | Won 2-0 | +181535 |
| 5sealed | 218 | Wiltsey, Wardon (1536) | Won 2-1 | +181553 |
| 6sealed | 108 | Talim, Gary (1781) | Won 2-0 | +221575 |
| 7sealed | 29 | Lin, Le (1625) | Won 2-1 | +191594 |
| 8sealed | 40 | Magyarodi, Thomas (1560) | Lost 0-2 | -191575 |
| 9sealed | 39 | Cunningham, Jeff (1794) | Lost 1-2 | -141561 |
| average opponent: 1588record: 6-3 | new rating: 1561 | |||