Cummings, Dennis K
Current rating: 1592
Record: 13-9
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1614 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 104 | Bosen, Arthur L (1539) | Won 2-1 | +171631 |
| 3sealed | 32 | Casselman, Jeffrey (1526) | Lost 1-2 | -201611 |
| 4sealed | 493 | Bravstein, Jeffrey (1566) | Lost 1-2 | -191592 |
| top | average opponent: 1544record: 1-2 | new rating: 1592 | ||
| Grand Prix Providence 2011 (legacy) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 72 | Chen, Jeffrey 2 (1593) | Won 2-0 | +201502 |
| 3legacy | 44 | Strunk, Michael (1573) | Won 2-0 | +201522 |
| 4legacy | 73 | Elsek, Maxime (1524) | Won 2-0 | +181540 |
| 5legacy | 36 | H., Eugene (1571) | Won 2-0 | +181558 |
| 6legacy | 6 | Kleinman, Neil (1589) | Won 2-0 | +191577 |
| 7legacy | 12 | O'Brien, Matt (1588) | Won 2-0 | +181595 |
| 8legacy | 5 | Hatfield, Jesse (1611) | Lost 1-2 | -181577 |
| 9legacy | 6 | Fabiano, Gerard (1946) | Won 2-0 | +251602 |
| 10legacy | 6 | Majlaton, Alex (1871) | Lost 1-2 | -131589 |
| 11legacy | 17 | Pratt, Taylor (1565) | Lost 0-2 | -191570 |
| 12legacy | 34 | Braverman, Michael (1600) | Won 2-1 | +191589 |
| 13legacy | 37 | Coval, Brian (1585) | Won 2-0 | +181607 |
| 14legacy | 20 | Lax, Ari (2065) | Lost 0-2 | -111596 |
| 15legacy | 29 | Pawlik, Gregory (1587) | Won 2-0 | +181614 |
| top | average opponent: 1662record: 10-4 | new rating: 1614 | ||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 312 | York, Steve (1500) | Lost 0-2 | -181482 |
| 2standard | 369 | Heimerl, Matthew (1482) | Won 2-0 | +181500 |
| 3standard | 220 | Bakir, Ahmead (1505) | Lost 1-2 | -181482 |
| 4standard | 381 | Swartz, Ben (1497) | Won 2-0 | +181500 |
| 5standard | 332 | Beebe, Berry (1500) | Lost 1-2 | -181482 |
| top | average opponent: 1497record: 2-3 | new rating: 1482 | ||