Rafferty, Colin
Current rating: 1604
Record: 20-17
| Grand Prix Las Vegas 2019 (limited) (MH1 limited) | starting rating: 1588 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 349 | Silver, Alexander (1500) | Lost 1-2 | -191569 |
| 2sealed | 476 | Laverty, Canon (1491) | Won 2-0 | +161585 |
| 3sealed | 1213 | Galicinao, Joshua (1357) | Won 2-0 | +141599 |
| 4sealed | 325 | Klein, Jeremy (1782) | Won 2-1 | +221621 |
| 5sealed | 100 | Tan, James (1738) | Lost 0-2 | -161605 |
| 6sealed | 215 | Bagni, Jason (1484) | Won 2-0 | +161621 |
| 7sealed | 205 | Pham, Nhi (1683) | Lost 0-2 | -171604 |
| top | average opponent: 1577record: 4-3 | new rating: 1604 | ||
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1441 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 127 | Rios, Gabriel (1395) | Won 2-0 | +171458 |
| 2sealed | 187 | Ma, Jack (1818) | Lost 0-0 | -111447 |
| 3sealed | 305 | Casey, Patrick (1488) | Won 2-1 | +181465 |
| 4sealed | 306 | Edelman, Charles (1763) | Lost 1-2 | -121453 |
| 5sealed | 375 | Mabie, Craig (1727) | Won 2-0 | +221475 |
| 6sealed | 252 | Strickman, Ian (1675) | Won 2-0 | +221497 |
| 7sealed | 191 | Laufer, Max (1587) | Won 2-0 | +201517 |
| 8sealed | 135 | Peebles-Mundy, Benjamin (1875) | Won 2-1 | +241541 |
| 9sealed | 69 | Garcia Rosas, Jose Daniel (1991) | Lost 1-2 | -101531 |
| 10draft | 50 | Lopez, Jose Manuel (1599) | Won 2-0 | +191550 |
| 11draft | 25 | Bohn, Nathaniel (1559) | Won 2-1 | +181568 |
| 12draft | 48 | Sloan, Stephen (1675) | Won 2-0 | +201588 |
| 13draft | 84 | Wong, Michael (1542) | Lost 0-2 | -191569 |
| 14draft | 74 | Kesselman, Matthew (1642) | Won 2-1 | +191588 |
| 15draft | 82 | Rosenblum-Sellers, Iris (1629) | ID | 01588 |
| top | average opponent: 1664record: 10-4-1 | new rating: 1588 | ||
| Grand Prix Madison 2019 (WAR limited) | starting rating: 1454 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 155 | Dittmer, Tyler (1545) | Lost 0-2 | -161438 |
| 2sealed | 279 | Conklin, Andrew (1480) | Won 2-1 | +191457 |
| 3sealed | 387 | Kitzis, Daniel (1591) | Lost 0-2 | -161441 |
| top | average opponent: 1538record: 1-2 | new rating: 1441 | ||
| Grand Prix Chicago 2014 (JOU standard) | starting rating: 1451 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 114 | Liszka, Robert (1485) | Lost 1-2 | -171434 |
| 2standard | 371 | Velasco, David (1482) | Won 2-0 | +181452 |
| 3standard | 270 | Knowles, Kegan (1544) | Lost 1-2 | -161436 |
| 4standard | 366 | Kaehler, David (1484) | Won 2-1 | +191455 |
| 5standard | 340 | Hammond, Dakota (1492) | Won 0-0 | +191474 |
| 6standard | 143 | Lehmkuhl, Mike (1400) | Lost 0-2 | -201454 |
| top | average opponent: 1481record: 3-3 | new rating: 1454 | ||
| Grand Prix Louisville 2013 (THS standard) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 150 | Bennett, Colin (1500) | Won 2-1 | +181483 |
| 2standard | 280 | Eckert, Joseph (1500) | Lost 0-2 | -181465 |
| 3standard | 416 | Crenshaw, Alan (1499) | Lost 1-2 | -171448 |
| 4standard | 499 | Fyrberg, Mike D (1584) | Won 2-1 | +211469 |
| 5standard | 459 | Basham, Levi (1487) | Lost 1-2 | -181451 |
| top | average opponent: 1514record: 2-3 | new rating: 1451 | ||
| Grand Prix Indianapolis 2008 (SHM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 102 | Ward, Michael (1500) | Lost 1-2 | -181482 |
| 2sealed | 369 | Warr, Clement (1511) | Lost 1-2 | -171465 |
| top | average opponent: 1505record: 0-2 | new rating: 1465 | ||