Weizenbaum, Nathan
Current rating: 1511
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1512 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 592 | Hoffos, Mason (1500) | Won 2-0 | +181530 |
| 2sealed | 743 | Kasofsky, David (1558) | Lost 1-2 | -181512 |
| 3sealed | 744 | Molt, Eric (1482) | Won 2-1 | +181530 |
| 4sealed | 543 | d710, David (1501) | Lost 0-2 | -191511 |
| top | average opponent: 1510record: 2-2 | new rating: 1511 | ||
| Grand Prix Vancouver 2012 (AVR limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 50 | Isleib, Brandon T (1629) | Lost 0-2 | -161486 |
| 3sealed | 215 | Finelli, David (1520) | Won 2-0 | +191505 |
| 4sealed | 190 | Wilhite, Stephen (1518) | Won 2-0 | +181523 |
| 5sealed | 172 | Blum, Tyler (1768) | Won 2-1 | +231546 |
| 6sealed | 63 | Mason, Jesse S (1653) | Lost 0-2 | -161530 |
| 7sealed | 91 | Mager, Justin (1544) | Lost 0-2 | -181512 |
| top | average opponent: 1605record: 3-3 | new rating: 1512 | ||
| Grand Prix Seattle-Tacoma 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 136 | Inaba, Ryan (1500) | Lost 1-2 | -181482 |
| 3sealed | 313 | Loving, Tyler (1484) | Won 2-0 | +181500 |
| 4sealed | 330 | Morse-Fortier, Philip (1647) | Won 2-0 | +211521 |
| 5sealed | 199 | Yablon, Lance m (1522) | Lost 1-2 | -181503 |
| 6sealed | 232 | Pedersen, Erik (1518) | Won 2-0 | +181521 |
| 7sealed | 148 | Wittrock, Warren (1470) | Lost 1-2 | -191502 |
| top | average opponent: 1523record: 3-3 | new rating: 1502 | ||