Tatum, Josh
Current rating: 1413
Record: 2-7
| Grand Prix Dallas-Fort Worth 2015 (ORI limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 234 | Troisi, Dylan (1500) | Won 2-0 | +191464 |
| 2sealed | 335 | Elarba, Jorge (1484) | Lost 1-2 | -171447 |
| 3sealed | 413 | Sams, Randy (1510) | Lost 0-2 | -171430 |
| 4sealed | 555 | Gutierrez, Denise (1484) | Lost 0-2 | -171413 |
| average opponent: 1494record: 1-3 | new rating: 1413 | |||
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 189 | COFFEY, DAVID (1500) | Lost 0-2 | -181482 |
| 2sealed | 378 | Guedry, Joshua (1481) | Lost 1-2 | -181464 |
| 3sealed | 430 | Carter, Devin [USA] (1464) | Lost 0-2 | -181446 |
| 4sealed | 460 | Vandevere, Robert (1445) | Won 2-0 | +181464 |
| 5sealed | 412 | Keller, Israel (1429) | Lost 1-2 | -191445 |
| average opponent: 1464record: 1-4 | new rating: 1445 | |||