Zeller, Joseph
Current rating: 1450
| Grand Prix Toronto 2017 (HOU limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 413 | Li, Jun [CAN] (1691) | Lost 0-2 | -141450 |
| top | record: 0-1 | new rating: 1450 | ||
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 204 | Lee, Lauren (1512) | Lost 1-2 | -171464 |
| 2sealed | 296 | Griffith, Sky (1481) | Lost 1-2 | -181446 |
| 3sealed | 404 | Jomini, Paul (1463) | Lost 1-2 | -171429 |
| 4sealed | 461 | Walker, Jonathan (1408) | Won 2-0 | +171446 |
| 5sealed | 395 | Byrum, Danielle (1413) | Won 2-1 | +181464 |
| 6sealed | 316 | smith, JOESEPH (1463) | Won 2-0 | +181482 |
| 7sealed | 240 | Clark, Ryan (1500) | Lost 1-2 | -181464 |
| top | average opponent: 1463record: 3-4 | new rating: 1464 | ||
| Grand Prix Denver 2011 (MBS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 503 | Marshall, Scott (1502) | Lost 1-2 | -181482 |
| 2sealed | 548 | Heck, Michael J (1482) | Won 2-0 | +181500 |
| 3sealed | 518 | Wrisley, Craig E (1468) | Lost 0-2 | -191481 |
| top | average opponent: 1484record: 1-2 | new rating: 1481 | ||