Cummings, Michael J
Current rating: 1690
Record: 27-17-2
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1675 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 77 | Hudgins, Matt (1518) | Won 2-0 | +151690 |
| top | record: 1-0 | new rating: 1690 | ||
| Grand Prix Mexico City 2014 (BNG limited) | starting rating: 1589 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 30 | Acoltzi Rodriguez, Oscar (1464) | Won 2-0 | +151604 |
| 3sealed | 8 | BONILLA, CARLOS (1535) | Won 2-0 | +171621 |
| 4sealed | 29 | Priego C, Luis Enrique (1594) | Won 2-1 | +181639 |
| 5sealed | 15 | Tovar, Daniel (1665) | Lost 1-2 | -181621 |
| 6sealed | 64 | Becerra Reyes, Carlos (1778) | Lost 1-2 | -151606 |
| 7sealed | 52 | Rodriguez Romo, Gustavo (1566) | Won 2-1 | +171623 |
| 8sealed | 71 | Mojica, Miguel (1593) | Won 2-1 | +181641 |
| 9draft | 9 | de la Garza, Lisandro (1661) | Won 2-0 | +181659 |
| 10draft | 3 | Olvera Castellanos, Cesar (1564) | Lost 0-2 | -201639 |
| 11draft | 53 | Lopez Basulto, Erick Manuel (1555) | Won 2-1 | +171656 |
| 12draft | 9 | Serrano Castillo, Joel (1555) | Won 2-0 | +161672 |
| 13draft | 21 | Velarde Gallegos, Jose Raul (1665) | Won 2-1 | +181690 |
| 14draft | 11 | Van Cleave, Trey (1845) | Lost 0-1 | -151675 |
| top | average opponent: 1618record: 9-4 | new rating: 1675 | ||
| Grand Prix Houston 2013 (DGM limited) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 81 | Herren, Jason (1588) | Won 2-0 | +201536 |
| 2sealed | 81 | Vera, Pablo (1517) | Won 2-1 | +171553 |
| 3sealed | 81 | Moreau, Jeff (1569) | Won 2-0 | +191572 |
| 4sealed | 81 | Short, Robert (1551) | Won 2-1 | +171589 |
| 5sealed | 81 | Campbell, Collin (1555) | Lost 1-2 | -181571 |
| 6sealed | 81 | Aiken, Simone (1590) | Won 2-1 | +181589 |
| 7sealed | 81 | Shen, Eric (1633) | Won 2-0 | +191608 |
| 8sealed | 81 | Gates, Jason (1495) | Won 2-0 | +161624 |
| 9sealed | 81 | Friedman, Ben (1845) | Lost 0-2 | -141610 |
| 10draft | 23 | LeBlanc, Garrett (1561) | Won 2-0 | +171627 |
| 11draft | 64 | Hua, Ming (1598) | Lost 0-2 | -191608 |
| 12draft | 27 | Van Dyke, Michael (1653) | Lost 0-2 | -171591 |
| 14draft | 18 | Xu, Roy (1512) | Lost 0-2 | -191572 |
| 15draft | 40 | Henson, Hakeem (1520) | Won 2-0 | +171589 |
| top | average opponent: 1585record: 9-5 | new rating: 1589 | ||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 151 | Taylor, Matthew (1501) | Won 2-1 | +181512 |
| 2sealed | 198 | Chang, Stephen W (1532) | Lost 0-2 | -181494 |
| 3sealed | 316 | Hendricks, Thomas (1501) | Lost 1-2 | -181476 |
| 4sealed | 316 | Serignese, Paul (1609) | Won 2-0 | +211497 |
| 5sealed | 231 | Wallace, Kevin (1588) | Won 2-0 | +191516 |
| top | average opponent: 1546record: 3-2 | new rating: 1516 | ||
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 127 | Hunter, Zach (1500) | Lost 0-2 | -181463 |
| 2sealed | 411 | Bartley, Shane (1482) | Won 2-0 | +191482 |
| 3sealed | 334 | Roach, Grant F (1484) | Won 2-1 | +181500 |
| 4sealed | 262 | Howard, Justin (1518) | Won 2-1 | +181518 |
| 5sealed | 201 | Costa, Matthew (1863) | Lost 1-2 | -121506 |
| 6sealed | 299 | Fabiano, Gerard (1830) | Lost 0-2 | -121494 |
| top | average opponent: 1613record: 3-3 | new rating: 1494 | ||
| Grand Prix Houston 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 60 | Kerr, Robert C (1464) | Draw 1-1 | -11499 |
| 2extended | 157 | Dowdy, Collin (1500) | Draw 1-1 | 01499 |
| 3extended | 219 | Memmel, Jesse (1500) | Won 2-1 | +181517 |
| 4extended | 191 | Abdullahad, David (1518) | Won 2-1 | +181535 |
| 5extended | 135 | Illenye, Kory (1504) | Lost 0-2 | -181517 |
| 6extended | 179 | Davis, Michael (1518) | Lost 1-2 | -181499 |
| 7extended | 160 | navarro, manuel A (1500) | Lost 1-2 | -181481 |
| top | average opponent: 1501record: 2-3-2 | new rating: 1481 | ||