Campbell, Colin
Current rating: 1444
| Grand Prix Madison 2019 (WAR limited) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 183 | Underdahl, Soren (1600) | Lost 1-2 | -151416 |
| 2sealed | 253 | Krinninger, Scott (1435) | Won 2-1 | +181434 |
| 3sealed | 313 | Fay, Jordan (1502) | Won 2-0 | +201454 |
| 4sealed | 264 | Schrumpf, Tyler (1518) | Won 2-1 | +191473 |
| 5sealed | 170 | Helbig, Drew (1801) | Lost 1-2 | -131460 |
| 6sealed | 211 | Yulga, Tate (1554) | Lost 0-2 | -161444 |
| top | average opponent: 1568record: 3-3 | new rating: 1444 | ||
| Grand Prix New York 2016 (SOI standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 274 | Husband, Joshua (1500) | Won 2-0 | +191501 |
| 2standard | 33 | Duhamel, Erik (1585) | Lost 0-2 | -171484 |
| 3standard | 647 | Anaya, Carlos (1482) | Lost 1-2 | -181466 |
| 4standard | 848 | Lord, Roger (1476) | Lost 1-2 | -181448 |
| 5standard | 814 | Eaton, Jansen (1488) | Lost 0-2 | -171431 |
| top | average opponent: 1506record: 1-4 | new rating: 1431 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 313 | Chun, Robert (1500) | Won 2-0 | +181518 |
| 2sealed | 209 | Fossan, Zack (1518) | Lost 0-2 | -181500 |
| 3sealed | 304 | Brester, Kris (1510) | Lost 1-2 | -181482 |
| top | average opponent: 1509record: 1-2 | new rating: 1482 | ||