Kolk, Jason M
Current rating: 1519
Record: 4-3
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 26 | Copeland, Scott (1500) | Won 2-0 | +181518 |
| 2standard | 87 | Hatab, Blaine (1650) | Lost 1-2 | -161502 |
| 3standard | 269 | Schultz, Garrett (1500) | Won 2-1 | +181520 |
| 4standard | 130 | Cameron, Matthew (1538) | Lost 0-2 | -171503 |
| 5standard | 291 | Holstein, Henry (1499) | Won 2-1 | +181521 |
| 6standard | 143 | Kazhdan, Joseph (1480) | Won 2-0 | +171538 |
| 7standard | 118 | Mercado, Guillermo (1507) | Lost 0-2 | -191519 |
| average opponent: 1525record: 4-3 | new rating: 1519 | |||