Davis, Zack
Current rating: 1368
Record: 4-12
| Grand Prix Oklahoma City 2015 (modern) | starting rating: 1392 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 6 | Braggs, Isaiah (1500) | Won 2-0 | +201412 |
| 2modern | 38 | Ko, Jason (1571) | Lost 0-2 | -151397 |
| 3modern | 380 | Walter, Dominic (1501) | Lost 0-0 | -161381 |
| 4modern | 559 | Garner, Matt (1410) | Lost 0-2 | -181363 |
| 5modern | 1062 | Rogers, Bryan (1341) | Lost 0-2 | -181345 |
| 6modern | 1062 | Holdsclaw, Anthony (1424) | Won 2-0 | +191364 |
| 7modern | 362 | Barros, Lucas (1447) | Won 2-0 | +201384 |
| 8modern | 280 | Carson, Oliver (1498) | Lost 0-2 | -161368 |
| average opponent: 1461record: 3-5 | new rating: 1368 | |||
| Grand Prix Oklahoma City 2013 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 321 | Nichlos, Tyler (1500) | Lost 0-2 | -181482 |
| 2sealed | 439 | Wilson, Joshua B (1482) | Lost 0-2 | -181464 |
| 3sealed | 592 | Thomas, Gary (1464) | Lost 0-2 | -181446 |
| 4sealed | 580 | Brown, Scot (1416) | Lost 1-2 | -191427 |
| 5sealed | 535 | Scribner, Gavin Drake (1428) | Lost 1-2 | -181409 |
| 6sealed | 463 | Hart, Jaiden (1409) | Lost 0-2 | -181391 |
| 7sealed | 399 | Buono, Troy (1411) | Won 2-0 | +191410 |
| 8sealed | 347 | Stotts, Sam (1408) | Lost 0-2 | -181392 |
| average opponent: 1440record: 1-7 | new rating: 1392 | |||