Mangels, Jeffery
Current rating: 1444
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 245 | Bosarreyes, Jason (1500) | Lost 0-2 | -181463 |
| 2sealed | 273 | Martinez, Francisco (1469) | Won 2-0 | +181481 |
| 3sealed | 173 | Miller, Jordan (1402) | Lost 0-2 | -191462 |
| 4sealed | 272 | Caridi, Sandro (1482) | Lost 1-2 | -181444 |
| top | average opponent: 1463record: 1-3 | new rating: 1444 | ||
| Grand Prix Detroit 2013 (modern) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 136 | Bishop, Eric (1346) | Lost 0-0 | -211480 |
| 3modern | 547 | Parker, Jon (1512) | Won 2-1 | +181498 |
| 4modern | 236 | Terry, Jason (1591) | Lost 0-2 | -161482 |
| 5modern | 379 | Falk, Andy (1472) | Won 2-0 | +181500 |
| 6modern | 291 | Freel, Dan (1427) | Lost 1-2 | -191481 |
| top | average opponent: 1470record: 2-3 | new rating: 1481 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 335 | Hernandez, Juan Carlos (1521) | Won 2-0 | +181518 |
| 2sealed | 51 | Hill, Corey (1565) | Lost 0-2 | -171501 |
| 3sealed | 264 | Hurley, Julia (1499) | Won 2-0 | +181519 |
| 4sealed | 183 | Beuchler, Matthew (1517) | Won 2-0 | +181537 |
| 5sealed | 163 | Shaffer, Kevin (1512) | Lost 0-2 | -181519 |
| 6sealed | 203 | Comeau, Luke (1515) | Lost 1-2 | -181501 |
| top | average opponent: 1522record: 3-3 | new rating: 1501 | ||