Bittick, Joseph
Current rating: 1499
| Grand Prix Phoenix 2020 (pioneer) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 202 | Grizzle, Brent (1473) | Won 2-0 | +181506 |
| 2pioneer | 173 | Muniz, Jorge (1498) | Lost 0-2 | -181488 |
| 3pioneer | 315 | Brean, Aidan (1490) | Lost 1-2 | -181470 |
| 4pioneer | 423 | Hitt, Brandon (1533) | Won 2-1 | +191489 |
| 5pioneer | 311 | England, Sarah (1762) | Won 2-1 | +231512 |
| 6pioneer | 195 | Rosellini, Jason (1830) | Lost 1-2 | -131499 |
| top | average opponent: 1598record: 3-3 | new rating: 1499 | ||
| Grand Prix Phoenix 2017 (XLN limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 127 | Martin, Christopher (1387) | Lost 0-2 | -191445 |
| 2sealed | 383 | Wong, Christian (1449) | Won 2-1 | +181463 |
| 3sealed | 285 | Marohl, Jake (1500) | Lost 1-2 | -171446 |
| 4sealed | 492 | Case, Alex (1487) | Won 2-1 | +181464 |
| 5sealed | 357 | Boehme, Victoria (1476) | Lost 1-2 | -171447 |
| 6sealed | 388 | Schohn, James (1476) | Won 2-0 | +181465 |
| 7sealed | 296 | Palmer, Omo (1507) | Won 2-0 | +191484 |
| 8sealed | 222 | Hall, Zack (1690) | Won 2-0 | +221506 |
| 9sealed | 134 | Abraham, Yonas (1530) | Lost 1-2 | -181488 |
| top | average opponent: 1500record: 5-4 | new rating: 1488 | ||
| Grand Prix Phoenix 2014 (BNG standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 211 | Trepanier, Timm (1500) | Lost 1-2 | -181482 |
| 2standard | 348 | Rehn, Spencer (1482) | Lost 0-2 | -181464 |
| 3standard | 616 | Cortez, Sal (1479) | Won 2-1 | +181482 |
| 4standard | 560 | Ruiz, Erik (1481) | Lost 1-2 | -181464 |
| top | average opponent: 1486record: 1-3 | new rating: 1464 | ||