Bitzonis, Zachary
Current rating: 1452
Record: 3-6-1
| Grand Prix Boston-Worcester 2014 (modern) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 723 | Stierle, Michael (1500) | Lost 0-2 | -171452 |
| top | record: 0-1 | new rating: 1452 | ||
| Grand Prix Quebec City 2013 (GTC standard) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 39 | Rahill, Nicholis (1548) | Lost 1-2 | -171479 |
| 5standard | 154 | Thibault, Jean-Francois (1546) | Lost 1-2 | -161463 |
| 6standard | 227 | Sheffield, Randy Sway s (1485) | Won 2-0 | +181481 |
| 7standard | 162 | Hampton, Jesse (1824) | Lost 0-2 | -121469 |
| top | average opponent: 1601record: 1-3 | new rating: 1469 | ||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 229 | Lindelof, Emma (1378) | Draw 1-1 | -21498 |
| 2sealed | 250 | Simons, Stephen (1500) | Won 2-0 | +181516 |
| 3sealed | 166 | Divelbliss, Timothy (1481) | Won 2-1 | +171533 |
| 4sealed | 123 | Messa, Andrew (1537) | Lost 0-2 | -181515 |
| 5sealed | 213 | Crane, Paul (1469) | Lost 0-2 | -191496 |
| top | average opponent: 1473record: 2-2-1 | new rating: 1496 | ||