Bonzo, Zachary
Current rating: 1457
Record: 5-8
| Grand Prix Oklahoma City 2013 (THS limited) | starting rating: 1472 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 264 | Burditt, Calvin (1501) | Won 2-0 | +181490 |
| 3sealed | 169 | Jeffery, Evan (1536) | Lost 1-2 | -171473 |
| 4sealed | 357 | Glaser, Gary (1496) | Lost 0-2 | -181455 |
| 5sealed | 420 | Mcafee, Brian (1499) | Won 2-0 | +191474 |
| 6sealed | 374 | Huffmon, Robert (1518) | Lost 1-2 | -171457 |
| average opponent: 1510record: 2-3 | new rating: 1457 | |||
| Grand Prix Houston 2013 (DGM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 144 | Thomas, Macalah (1500) | Won 2-0 | +181518 |
| 2sealed | 162 | Looper, Christopher (1518) | Won 2-1 | +181536 |
| 3sealed | 26 | Cardenas, Johnie (1572) | Won 2-0 | +191555 |
| 4sealed | 69 | Mondrik, James (1556) | Lost 0-2 | -181537 |
| 5sealed | 165 | Scott-Vargas, Luis (1983) | Lost 0-2 | -111526 |
| 6sealed | 202 | Cash, Brett (1427) | Lost 1-2 | -191507 |
| 7sealed | 216 | Moore, Scott (1498) | Lost 0-2 | -191488 |
| 8sealed | 193 | Slingerland, Maxfield (1551) | Lost 0-2 | -161472 |
| average opponent: 1576record: 3-5 | new rating: 1472 | |||