Coffman, James
Current rating: 1577
Record: 9-5
| Grand Prix Albuquerque 2013 (THS standard) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 234 | Kmetz, Daniel (1610) | Lost 0-2 | -171540 |
| 3standard | 347 | Freeman, Casey (1500) | Won 2-1 | +171557 |
| 4standard | 246 | Gil, Nick (1496) | Won 2-1 | +171574 |
| 5standard | 212 | Lindemann, Michael (1535) | Won 2-1 | +171591 |
| 6standard | 174 | Tenjum, Andrew (1781) | Lost 0-2 | -141577 |
| average opponent: 1584record: 3-2 | new rating: 1577 | |||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 912 | Zhou, Charles (1500) | Won 2-1 | +181518 |
| 2sealed | 1167 | Cheng, Nicholas (1458) | Won 2-0 | +171535 |
| 3sealed | 983 | Adair, Zach (1568) | Lost 0-2 | -171518 |
| 4sealed | 1230 | Wrammerfors, Pelle (1573) | Won 2-1 | +191537 |
| 5sealed | 1034 | Laub, Brian (1484) | Won 2-1 | +171554 |
| 6sealed | 852 | Potts, Doug (1528) | Won 2-1 | +171571 |
| 7sealed | 519 | Wu, Jia (1740) | Lost 1-2 | -151556 |
| 8sealed | 500 | Kolczynski, Walter (1549) | Won 2-0 | +181574 |
| 9sealed | 439 | Turgeon, Stephan (1620) | Lost 1-2 | -171557 |
| average opponent: 1558record: 6-3 | new rating: 1557 | |||