Marshall, Matthew
Current rating: 1470
Record: 5-7
| Grand Prix Toronto 2018 (modern) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 80 | Eathorne, Katelyn (1444) | Won 2-1 | +171488 |
| 2modern | 272 | Kain, Morgan (1511) | Won 2-0 | +191507 |
| 3modern | 16 | Gray, Chris (1510) | Lost 1-2 | -181489 |
| 4modern | 291 | Seguin, Paul (1403) | Won 2-0 | +161505 |
| 5modern | 132 | Antosh, John (1530) | Lost 1-2 | -171488 |
| 6modern | 262 | Baley, Cody (1526) | Lost 1-2 | -181470 |
| average opponent: 1487record: 3-3 | new rating: 1470 | |||
| Grand Prix Toronto 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 1013 | Gilchrist, Ryan (1566) | Won 2-0 | +191519 |
| 2standard | 309 | Carroll, Neil (1520) | Won 2-1 | +181537 |
| 3standard | 300 | Deltour, Louis (1987) | Lost 0-2 | -101527 |
| 4standard | 245 | Wong, Benny 6450 (1517) | Lost 0-2 | -181509 |
| 5standard | 550 | Conrad, Cory (1416) | Lost 1-2 | -201489 |
| 6standard | 507 | Parsons, Adam (1468) | Lost 0-2 | -181471 |
| average opponent: 1579record: 2-4 | new rating: 1471 | |||