Mermin, Jeff
Current rating: 1535
Record: 8-6
| Grand Prix Oklahoma City 2013 (THS limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 370 | McMahan, Josh (1500) | Won 2-0 | +181499 |
| 2sealed | 300 | Betts, Dustin (1548) | Won 2-0 | +191518 |
| 3sealed | 246 | Edwards, Scott (1538) | Lost 1-2 | -171501 |
| 4sealed | 251 | Weinstein, Justin (1483) | Won 2-0 | +171518 |
| 5sealed | 295 | Dietrich, Thomas (1457) | Won 2-1 | +171535 |
| 6sealed | 157 | Cripps, Brian (1469) | Won 2-1 | +171552 |
| 7sealed | 170 | Reasoner, Eric (1589) | Lost 1-2 | -171535 |
| 8sealed | 159 | Moses, Jason (1410) | Won 2-0 | +151550 |
| 9sealed | 152 | Bush, Eric (1722) | Lost 1-2 | -151535 |
| average opponent: 1524record: 6-3 | new rating: 1535 | |||
| Grand Prix Kansas City 2008 (ALA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 140 | Bessey, Stan (1513) | Won 2-1 | +181518 |
| 2sealed | 109 | Oliver, Neal (1500) | Lost 1-2 | -181500 |
| 3sealed | 145 | Smith, Kyle 1962 (1483) | Won 2-1 | +181518 |
| 4sealed | 310 | Forner, Matthew (1479) | Lost 0-2 | -191499 |
| 5sealed | 203 | Malowski, William (1500) | Lost 0-2 | -181481 |
| average opponent: 1495record: 2-3 | new rating: 1481 | |||