Ferguson, Cormac
Current rating: 1520
| Grand Prix Hartford 2018 (modern) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 599 | Kiirikki, Ari (1385) | Won 2-0 | +151577 |
| 2modern | 373 | D'Imperio, Luke (1536) | Lost 0-2 | -191558 |
| 3modern | 588 | Rebosio, Guido (1506) | Lost 1-2 | -191539 |
| 4modern | 770 | Katcher, Michael (1479) | Lost 1-2 | -191520 |
| top | average opponent: 1477record: 1-3 | new rating: 1520 | ||
| Grand Prix Charlotte 2016 (modern) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 724 | Skinner, Aaron (1500) | Won 2-1 | +181501 |
| 2modern | 297 | Vu, Don (1479) | Lost 1-2 | -181483 |
| 3modern | 790 | Gardner, Christopher (1498) | Won 2-0 | +181501 |
| 4modern | 160 | Aitken, William (1710) | Won 2-1 | +221523 |
| 5modern | 302 | Lewis, Christopher (1441) | Won 2-1 | +161539 |
| 6modern | 531 | Ambrosio, Joe (1490) | Lost 0-2 | -191520 |
| 7modern | 307 | Semkin, Alexander (1776) | Lost 1-2 | -131507 |
| 8modern | 464 | Schaefer, Charles (1507) | Won 2-0 | +181525 |
| 9modern | 296 | Kibodeaux, Clark (1436) | Won 2-0 | +161541 |
| 10modern | 237 | Williams, David (1440) | Won 2-1 | +161557 |
| 11modern | 133 | Koson, Tom (1538) | Won 2-0 | +181575 |
| 12modern | 80 | DiMondo, Vince (1594) | Lost 0-2 | -181557 |
| 13modern | 196 | Coates, Jeff (1579) | Won 2-0 | +191576 |
| 14modern | 146 | Huttman, Michael (1801) | Lost 1-2 | -141562 |
| top | average opponent: 1556record: 9-5 | new rating: 1562 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 216 | Renteria, Reggie (1559) | Lost 0-2 | -171483 |
| 2sealed | 375 | Knezevich, Blake (1570) | Lost 0-2 | -161467 |
| 3sealed | 399 | Hall, Brian (1384) | Lost 1-2 | -201447 |
| 4sealed | 378 | Chau, Kevin (1444) | Won 2-0 | +181465 |
| 5sealed | 311 | Pruett, Greg (1464) | Lost 0-2 | -181447 |
| 6sealed | 265 | Bates, Daniel (1504) | Won 2-0 | +191466 |
| 7sealed | 203 | Sutcliffe, Donald (1499) | Won 2-0 | +191485 |
| 8sealed | 150 | Atiya, Mira (1484) | Won 2-0 | +181503 |
| 9sealed | 114 | Monfre, Dominic (1392) | Lost 0-2 | -201483 |
| top | average opponent: 1478record: 4-5 | new rating: 1483 | ||