Gellin, Nathan
Current rating: 1521
Record: 8-7
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 849 | Jones, Reives (1526) | Won 2-1 | +181537 |
| 2modern | 458 | St. Clair, Adam (1606) | Lost 1-2 | -171520 |
| 3modern | 1015 | Johns, Tony (1503) | Won 2-1 | +181538 |
| 4modern | 539 | Marcum, Ian (1518) | Lost 1-2 | -191519 |
| 5modern | 707 | LaMunyon, Josh (1607) | Won 2-0 | +201539 |
| 6modern | 559 | Benhaim, Adam (1520) | Lost 1-2 | -181521 |
| average opponent: 1547record: 3-3 | new rating: 1521 | |||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 195 | Bentle, Anthony (1581) | Lost 1-2 | -171483 |
| 2sealed | 271 | Murawski, Paul (1480) | Won 2-0 | +181501 |
| 3sealed | 242 | Kincaid, Nicholas (1462) | Won 2-0 | +181519 |
| 4sealed | 236 | Duguay, Justin (1519) | Lost 0-2 | -181501 |
| 5sealed | 294 | Ward, Jaden (1501) | Won 2-0 | +181519 |
| 6sealed | 137 | Peck, Hayden (1518) | Lost 0-2 | -181501 |
| 7sealed | 182 | Chambers, Alison (1490) | Won 2-0 | +171518 |
| 8sealed | 136 | Hickman, Jeremiah (1560) | Won 2-1 | +191537 |
| 9sealed | 99 | Bodenbach, Ken (1510) | Lost 0-2 | -181519 |
| average opponent: 1513record: 5-4 | new rating: 1519 | |||