Cummings, Alan
Current rating: 1540
| Grand Prix Atlanta 2018 (modern) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 453 | Carlton, Jason (1470) | Won 2-1 | +171556 |
| 2modern | 66 | Smith, Jock (1489) | Lost 0-2 | -201536 |
| 3modern | 387 | Johnson, Sam (1673) | Won 2-0 | +211557 |
| 4modern | 483 | Karsten, James (1418) | Won 2-0 | +151572 |
| 5modern | 314 | Cibak, Andrea (1807) | Lost 1-2 | -131559 |
| 6modern | 444 | Davis, Ethan (1556) | Lost 1-2 | -191540 |
| top | average opponent: 1569record: 3-3 | new rating: 1540 | ||
| Grand Prix Charlotte 2016 (modern) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 293 | Vanderbeek, Eric (1520) | Lost 1-2 | -171466 |
| 2modern | 786 | Snowden, Walter (1484) | Won 2-1 | +181484 |
| 3modern | 604 | Carey, Chris (1455) | Won 2-1 | +171501 |
| 4modern | 1097 | Adams, Nolan (1518) | Won 2-0 | +191520 |
| 5modern | 254 | Barrett, Jonathan (1554) | Lost 1-2 | -181502 |
| 6modern | 679 | Mauz, Joseph (1505) | Won 2-1 | +181520 |
| 7modern | 253 | Blakeman, Slade (1558) | Lost 1-2 | -171503 |
| 8modern | 442 | Grana, Gregory (1460) | Won 2-0 | +171520 |
| 9modern | 361 | Wheeler, Pierre (1562) | Won 2-1 | +191539 |
| 10modern | 220 | Simmonds, Derrick (1554) | Won 2-1 | +181557 |
| 11modern | 212 | Boianghu, Keenan (1532) | Lost 1-2 | -181539 |
| top | average opponent: 1518record: 7-4 | new rating: 1539 | ||
| Grand Prix Charlotte 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 901 | Hays, Robert L (1500) | Lost 1-2 | -181482 |
| 2modern | 954 | Schneider, Michael (1578) | Lost 0-2 | -161466 |
| 3modern | 1096 | Seabolt, Wiley J (1467) | Won 2-0 | +181484 |
| 4modern | 1062 | Rotramel, Barrett (1466) | Won 2-0 | +171501 |
| 5modern | 967 | Farrell, Michael J (1471) | Lost 0-2 | -181483 |
| top | average opponent: 1496record: 2-3 | new rating: 1483 | ||