Tatum, Chris
Current rating: 1462
| Grand Prix Dallas-Fort Worth 2018 (DOM limited) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 281 | Keahey, Tyler (1500) | Lost 1-2 | -181479 |
| 2sealed | 308 | Wang, Justin (1494) | Won 2-0 | +181497 |
| 3sealed | 327 | Ahner, Sean (1581) | Lost 0-2 | -171480 |
| 4sealed | 438 | Beauregard, Thomas (1439) | Lost 0-2 | -181462 |
| top | average opponent: 1504record: 1-3 | new rating: 1462 | ||
| Grand Prix Houston 2018 (RIX limited) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 242 | Freeman, David (1375) | Won 2-0 | +161503 |
| 2sealed | 17 | Nguyen, Tin (1635) | Lost 0-2 | -161487 |
| 3sealed | 347 | Hughes, Will (1503) | Won 2-1 | +181505 |
| 4sealed | 258 | Ragsdale, Adam (1908) | Lost 0-2 | -111494 |
| 5sealed | 277 | Thompson, Benjamin (1496) | Won 2-0 | +181512 |
| 6sealed | 151 | Siu, Lin Chen (1630) | Lost 1-2 | -151497 |
| top | average opponent: 1591record: 3-3 | new rating: 1497 | ||
| Grand Prix Oklahoma City 2013 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 187 | Suarez, Andres (1769) | Lost 1-2 | -131487 |
| top | record: 0-1 | new rating: 1487 | ||