Johnson, Matt J
Current rating: 1517
| Grand Prix Toronto 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 172 | Gustafson, Tyler (1500) | Won 2-0 | +181518 |
| 2modern | 235 | Smith, J. (1500) | Lost 0-2 | -181500 |
| 3modern | 317 | Yang, Tom (1499) | Won 2-0 | +181518 |
| 4modern | 231 | Breault, Jason (1517) | Won 2-1 | +181536 |
| 5modern | 206 | Wong, Wilson (1513) | Won 2-0 | +171553 |
| 6modern | 62 | Brown, Steven (1501) | Lost 0-2 | -191534 |
| 7modern | 193 | Dimech, Andrew E (1538) | Lost 0-2 | -171517 |
| top | average opponent: 1510record: 4-3 | new rating: 1517 | ||
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 181 | Klimenko, Mikhail (1500) | Won 2-0 | +171536 |
| 2sealed | 31 | Drebsky, David (1557) | Lost 0-1 | -171519 |
| 3sealed | 189 | Barber, Nathaniel (1502) | Lost 0-2 | -191500 |
| 4sealed | 271 | Campbell, Michael G (1500) | Won 2-0 | +181518 |
| 5sealed | 182 | Peacock, Robert (1508) | Lost 1-2 | -181500 |
| top | average opponent: 1514record: 2-3 | new rating: 1500 | ||
| Grand Prix Toronto 2006 (DIS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 8 | Tang, Jacky (1500) | Won 2-0 | +181518 |
| 2sealed | 102 | Beckemeyer, Dustin (1519) | Lost 1-2 | -181500 |
| 3sealed | 163 | Placious, Ray (1527) | Lost 0-2 | -171483 |
| 4sealed | 165 | Ho, Joey (1491) | Won 2-1 | +181501 |
| 5sealed | 154 | Honeycutt, James (1501) | Draw 1-1 | 01501 |
| 6sealed | 116 | Crocker, Cyril T (1499) | Won 2-0 | +181519 |
| top | average opponent: 1506record: 3-2-1 | new rating: 1519 | ||