Gammill, Darin
Current rating: 1520
Record: 7-6
| Grand Prix Houston 2016 (OGW standard) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 570 | Sabinske, Michael (1500) | Won 2-0 | +181538 |
| 2standard | 414 | Putnam, Tyler (1598) | Lost 0-2 | -171521 |
| 3standard | 513 | King, Daniel (1467) | Lost 0-2 | -191502 |
| 4standard | 799 | Schmoyer, Mike (1481) | Won 2-1 | +171519 |
| 5standard | 517 | Arnott, Jeremy (1505) | Won 2-0 | +181537 |
| 6standard | 369 | Medley, Jacob (1575) | Lost 1-2 | -171520 |
| average opponent: 1521record: 3-3 | new rating: 1520 | |||
| Grand Prix Oklahoma City 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 387 | Reynolds, Andrew (1578) | Won 2-0 | +191519 |
| 2modern | 121 | Barlen, William (1462) | Lost 1-2 | -191500 |
| 3modern | 377 | Cantrell, Alexander (1408) | Won 0-0 | +171517 |
| 4modern | 283 | Linn, Ricky (1661) | Won 2-0 | +201537 |
| 5modern | 89 | Hightower, Matt (1559) | Won 2-0 | +191556 |
| 6modern | 40 | McDaniel, Charles (1563) | Lost 0-2 | -181538 |
| 7modern | 178 | Fang, Li (1543) | Lost 0-2 | -181520 |
| average opponent: 1539record: 4-3 | new rating: 1520 | |||