Kumpf, Clifford
Current rating: 1688
Record: 17-7
| Grand Prix Pittsburgh 2015 (modern) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 675 | Benning, Mark (1463) | Won 2-1 | +161569 |
| 2modern | 396 | Liu, Xiao (1573) | Lost 0-2 | -171552 |
| 3modern | 680 | Evans, Eli (1640) | Won 2-0 | +191571 |
| 4modern | 723 | Frey, Richard (1538) | Won 2-1 | +181589 |
| 5modern | 258 | Fortin, Christian (1596) | Won 2-0 | +181607 |
| 6modern | 227 | Goss, Jon (1718) | Won 2-1 | +201627 |
| 7modern | 163 | French, Rick (1576) | Won 2-1 | +171644 |
| 8modern | 101 | Stewart, David (1594) | Won 2-0 | +171661 |
| 9modern | 29 | Pepin, Alain (1710) | Won 2-1 | +191680 |
| 10modern | 21 | Bodee, Roger (1599) | Won 2-0 | +161696 |
| 11modern | 16 | Mantey, Tyler (1683) | Lost 1-2 | -181678 |
| 12modern | 57 | Wildes, Julian (1946) | Won 2-1 | +231701 |
| 13modern | 17 | Nguyen, Thien (1849) | Lost 0-2 | -161685 |
| 14modern | 34 | Cali, Rich (1652) | Won 2-1 | +181703 |
| 15modern | 35 | Moffitt, James (1851) | Lost 0-2 | -151688 |
| average opponent: 1666record: 11-4 | new rating: 1688 | |||
| Grand Prix Providence 2011 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 429 | Nedzweckas, Steven (1500) | Won 2-0 | +181518 |
| 2legacy | 484 | De Sousa, Steven (1518) | Lost 1-2 | -181500 |
| 3legacy | 507 | Forbes, Jason (1465) | Won 2-1 | +171517 |
| 4legacy | 508 | Rollins, Evan (1522) | Won 2-0 | +181535 |
| 5legacy | 464 | Leith, Kyle (1518) | Lost 0-2 | -181517 |
| 6legacy | 572 | Quirk, William (1530) | Won 2-0 | +181535 |
| 7legacy | 492 | Langford, Matthew C (1545) | Won 2-1 | +191554 |
| 8legacy | 476 | Bernard, Matthew (1444) | Lost 1-2 | -201534 |
| 9legacy | 476 | Smelski, Geoffrey T (1617) | Won 2-0 | +191553 |
| average opponent: 1518record: 6-3 | new rating: 1553 | |||