Kasofsky, David
Current rating: 1516
| Grand Prix Hartford 2018 (modern) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 565 | Raff, Elliot (1478) | Lost 0-2 | -191534 |
| 2modern | 660 | Carranza, Guillermo (1477) | Lost 0-2 | -191515 |
| 3modern | 862 | Bernstein, Hal (1451) | Won 2-1 | +171532 |
| 4modern | 714 | Smith, Sean (1667) | Lost 0-2 | -161516 |
| top | average opponent: 1518record: 1-3 | new rating: 1516 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 835 | Rhinelander, Aaron (1500) | Won 2-0 | +171558 |
| 2sealed | 743 | Weizenbaum, Nathan (1530) | Won 2-1 | +181576 |
| 3sealed | 698 | Yang, Tonny (1531) | Won 2-0 | +171593 |
| 4sealed | 777 | Obejas, Ammi (1553) | Lost 1-2 | -191574 |
| 5sealed | 624 | May, Alec (1400) | Lost 1-2 | -211553 |
| top | average opponent: 1503record: 3-2 | new rating: 1553 | ||
| Grand Prix Providence 2011 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 548 | Jones, Tom (1500) | Draw 1-1 | 01500 |
| 2legacy | 539 | Joslin, Scott P (1499) | Won 2-1 | +181518 |
| 3legacy | 495 | Tom, Kar Yung (1469) | Won 2-0 | +171535 |
| 4legacy | 488 | Pryor, Christopher (1536) | Won 1-0 | +181553 |
| 5legacy | 446 | Belanger, Ben (1556) | Lost 0-1 | -181535 |
| 6legacy | 495 | DeTora, Melissa (1715) | Lost 0-2 | -151520 |
| 7legacy | 535 | DeMond, James (1524) | Won 2-1 | +181538 |
| 8legacy | 498 | Doolittle, Lawrence (1684) | Lost 1-2 | -151523 |
| 9legacy | 494 | Rocheleau, James W (1521) | Won 2-1 | +181541 |
| top | average opponent: 1556record: 5-3-1 | new rating: 1541 | ||