Callenback, Avery
Current rating: 1491
Record: 15-17
| Grand Prix Anaheim 2012 (Innistrad block) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 219 | Coles, Josh (1446) | Won 2-1 | +181483 |
| 2block | 13 | Goddard, Maxwell (1502) | Won 2-1 | +181501 |
| 3block | 129 | Williams, Rachael (1560) | Lost 1-2 | -171484 |
| 4block | 197 | Dyer, Jason (1522) | Won 2-0 | +191503 |
| 5block | 76 | Ram, Navin (1668) | Won 2-0 | +211524 |
| 6block | 124 | Ko, Roy (1551) | Lost 0-2 | -181506 |
| 7block | 166 | Saredo, Adrian (1631) | Lost 0-2 | -151491 |
| top | average opponent: 1554record: 4-3 | new rating: 1491 | ||
| Grand Prix Los Angeles 2009 (extended) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 175 | Hom, Jonathan (1481) | Lost 0-2 | -191479 |
| 2extended | 248 | Wright, Troy (1519) | Lost 1-2 | -171462 |
| 3extended | 330 | Williamson, Michael (1470) | Won 2-0 | +181480 |
| 4extended | 320 | Draxler, Rory (1643) | Lost 0-2 | -151465 |
| top | average opponent: 1528record: 1-3 | new rating: 1465 | ||
| Grand Prix San Francisco 2007 (Time Spiral block) | starting rating: 1534 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 116 | Draper, Benjamin V (1518) | Lost 1-2 | -181516 |
| 3block | 148 | Phelps, Michael (1499) | Lost 1-2 | -181498 |
| top | average opponent: 1509record: 0-2 | new rating: 1498 | ||
| Grand Prix Las Vegas 2001 (extended) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 30 | Emery, Josh (1466) | Lost 0-2 | -191468 |
| 3extended | 90 | Vannelli, Daniel (1500) | Won 2-0 | +191487 |
| 4extended | 104 | Haywood, Terry (1518) | Won 2-0 | +181505 |
| 5extended | 81 | Blackwell, Trevor (1752) | Won 2-1 | +231528 |
| 6extended | 31 | Hegstad, Brian (1920) | Lost 1-2 | -111517 |
| 7extended | 78 | Shipley, Harry (1509) | Won 2-0 | +171534 |
| top | average opponent: 1611record: 4-2 | new rating: 1534 | ||
| Grand Prix Phoenix 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 27 | McKenzie, Mark (1500) | Won 2-1 | +181518 |
| 2extended | 3 | Dove, Scott (1500) | Won 2-0 | +181536 |
| 3extended | 27 | Freneau, Phil (1496) | Won 2-0 | +171553 |
| 4extended | 4 | Osborne, James (1557) | Won 2-0 | +181571 |
| 5extended | 16 | Davis, Brian (1775) | Lost 1-2 | -141557 |
| 6extended | 26 | Foster, Brian (1539) | Won 2-1 | +171574 |
| 7extended | 11 | Pustilnik, Michael (1795) | Lost 1-2 | -141560 |
| 8extended | 26 | Mills, Jesse (1560) | Lost 1-2 | -181542 |
| 9extended | 29 | Passmore, Lauren (1501) | Won 2-1 | +181560 |
| 10extended | 24 | Rivera, Tim (1494) | Lost 0-2 | -201540 |
| 11extended | 23 | Cole, Kirk (1547) | Lost 1-2 | -171523 |
| 12extended | 27 | Robinson, Ben (1491) | Lost 1-2 | -191504 |
| 13extended | 29 | Hegstad, Brian (1536) | Lost 1-2 | -171487 |
| top | average opponent: 1561record: 6-7 | new rating: 1487 | ||