Vassallo, Jack
Current rating: 1512
| Grand Prix San Antonio 2014 (KTK standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 240 | Jetter, Andrew (1500) | Won 2-1 | +171533 |
| 2standard | 162 | Homsi, Chris (1481) | Won 2-1 | +171550 |
| 3standard | 215 | Salazar Gonzales, Jorge Alberto (1576) | Won 2-0 | +191569 |
| 4standard | 46 | Henkes, Ben (1506) | Lost 0-2 | -191550 |
| 5standard | 139 | Valenzuela, Esmeralda (1476) | Lost 1-2 | -201530 |
| 6standard | 297 | Pershall, Jonathan (1507) | Lost 1-2 | -181512 |
| top | average opponent: 1508record: 3-3 | new rating: 1512 | ||
| Grand Prix San Antonio 2012 (RTR standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 234 | Hoffeld, Brandon (1500) | Won 2-1 | +181499 |
| 2standard | 149 | Tune, Alexander (1500) | Won 2-0 | +181517 |
| 3standard | 115 | Renault, Robert (1536) | Lost 0-2 | -171500 |
| 4standard | 198 | Davis, Justin (1468) | Lost 0-2 | -191481 |
| 5standard | 255 | Myers, Robert (1449) | Draw 1-1 | -11480 |
| 6standard | 236 | Torres, Josue (1483) | Won 2-1 | +181498 |
| 7standard | 166 | Coggins, James (1488) | Won 2-1 | +181516 |
| 8standard | 120 | Stone, David (1542) | Won 2-0 | +191535 |
| 9standard | 76 | BRUCE, NICHOLAS (1478) | Lost 0-2 | -191516 |
| top | average opponent: 1494record: 5-3-1 | new rating: 1516 | ||
| Grand Prix Houston 2002 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 56 | Ellis, Ryan (1451) | Lost 0-2 | -191481 |
| 2extended | 83 | Hyman, Cody (1482) | Won 2-0 | +181499 |
| 3extended | 72 | Silapachai, Komson (1518) | Won 2-1 | +181517 |
| 4extended | 47 | Paul, Donald (1480) | Lost 1-2 | -181499 |
| 5extended | 82 | Murley, David (1500) | Lost 0-2 | -181481 |
| top | average opponent: 1486record: 2-3 | new rating: 1481 | ||