Tosaky, Joe
Current rating: 1517
Record: 4-3
| Grand Prix Oakland 2013 (M14 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 521 | Joyner, Jordan (1500) | Won 2-0 | +181518 |
| 2sealed | 623 | Romero, Bill (1548) | Won 2-0 | +191537 |
| 3sealed | 34 | Wardell, Evan (1537) | Lost 0-2 | -181519 |
| 4sealed | 285 | Pramanik, Will (1521) | Won 2-0 | +181537 |
| 5sealed | 219 | Wood, Steven (1474) | Won 2-0 | +161553 |
| 6sealed | 414 | Martin, Sean (1514) | Lost 0-2 | -181535 |
| 7sealed | 268 | Chang, Stephen (1545) | Lost 0-2 | -181517 |
| average opponent: 1520record: 4-3 | new rating: 1517 | |||