Purcell, Zach
Current rating: 1475
Record: 3-4-1
| Grand Prix Denver 2017 (HOU standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 353 | Shepard, Chris (1444) | Lost 1-2 | -191481 |
| 2standard | 384 | Buaiz, Christopher (1484) | Won 2-0 | +181499 |
| 3standard | 335 | Mesznik, Nissim (1450) | Won 2-0 | +171516 |
| 4standard | 170 | Habener, Levon (1459) | Lost 0-2 | -191497 |
| 5standard | 336 | Heule III, Richard (1438) | Won 2-0 | +171514 |
| 6standard | 184 | Willemann III, Charles (1454) | Draw 1-1 | -11513 |
| 7standard | 254 | Hardy, Fredrick (1510) | Lost 1-2 | -181495 |
| 8standard | 316 | Bullick, Kathleen (1371) | Lost 0-2 | -201475 |
| average opponent: 1451record: 3-4-1 | new rating: 1475 | |||