Kozminski, Marcus
Current rating: 1465
Record: 4-6
| Grand Prix Denver 2013 (legacy) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 66 | King, Adam (1446) | Won 2-1 | +171481 |
| 2legacy | 77 | Meeson, David (1461) | Lost 0-2 | -181463 |
| 3legacy | 208 | Dale, Tom (1537) | Lost 0-2 | -171446 |
| 4legacy | 263 | Green, Phillip A (1480) | Won 2-1 | +191465 |
| 5legacy | 197 | Anderson, James (1450) | Won 2-1 | +181483 |
| 6legacy | 179 | [anonymous] | Lost 1-2 | -181465 |
| average opponent: 1476record: 3-3 | new rating: 1465 | |||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 167 | Dreikosen, Alex (1500) | Won 2-0 | +181518 |
| 2legacy | 97 | Tilley, Samuel (1518) | Lost 0-2 | -181500 |
| 3legacy | 126 | Robbins, Randall (1465) | Lost 0-2 | -191481 |
| 4legacy | 241 | Elfering, Brian (1501) | Lost 0-2 | -171464 |
| average opponent: 1496record: 1-3 | new rating: 1464 | |||