Shaffer, Stephen
Current rating: 1486
Record: 6-7
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 901 | Bode, Dalton (1518) | Lost 0-2 | -181505 |
| 3sealed | 731 | Rose, Jason (1505) | Won 2-1 | +181523 |
| 4sealed | 564 | Lyons, Greg (1462) | Lost 1-2 | -191504 |
| 5sealed | 769 | Lantz, Courtney (1500) | Won 2-0 | +171521 |
| 6sealed | 554 | Burr, Tim (1539) | Lost 0-2 | -171504 |
| 7sealed | 491 | Darby, Brandon (1518) | Lost 0-2 | -181486 |
| average opponent: 1507record: 2-4 | new rating: 1486 | |||
| Grand Prix Indianapolis 2013 (RTR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 95 | Bartel, Ross (1500) | Lost 0-2 | -181482 |
| 2sealed | 295 | Wager, James (1568) | Won 2-0 | +201502 |
| 3sealed | 295 | Eales, Andrew (1500) | Won 2-0 | +181520 |
| 4sealed | 219 | Odorizzi, Christopher (1707) | Lost 0-2 | -151505 |
| 5sealed | 231 | Frazier, Kurtis (1423) | Won 2-0 | +161521 |
| 6sealed | 210 | Tidd, Mark (1573) | Won 2-1 | +191540 |
| 7sealed | 186 | Shrout, Andrew (1557) | Lost 1-2 | -171523 |
| average opponent: 1547record: 4-3 | new rating: 1523 | |||