Alton, Mathew
Current rating: 1470
| Grand Prix Montreal 2019 (ELD limited) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 255 | Cote, Marc-Andre (1461) | Draw 1-1 | 01468 |
| 2sealed | 316 | Page, Michael (1638) | Won 2-0 | +211489 |
| 3sealed | 176 | Jackson, Ryan (1378) | Won 2-1 | +161505 |
| 4sealed | 87 | Roy, Gabriel (1538) | Lost 1-2 | -171488 |
| 5sealed | 182 | Beland-daigle, Sebastien (1520) | Lost 0-2 | -181470 |
| top | average opponent: 1507record: 2-2-1 | new rating: 1470 | ||
| Grand Prix Toronto 2017 (HOU limited) | starting rating: 1489 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 438 | Liu, Tong [CAN] (1478) | Lost 0-2 | -191470 |
| 2sealed | 516 | Mangar, Christian (1483) | Won 2-0 | +191489 |
| 3sealed | 426 | Griffioen, Derrek (1350) | Won 2-1 | +151504 |
| 4sealed | 299 | Szepesi, Stan (1517) | Lost 1-2 | -181486 |
| 5sealed | 378 | Dube, Jean-Francois (1450) | Lost 1-2 | -181468 |
| 6sealed | 443 | Alfieri, William (1479) | Won 2-0 | +181486 |
| 7sealed | 306 | Dipaolo, Andrew (1500) | Lost 0-2 | -181468 |
| top | average opponent: 1465record: 3-4 | new rating: 1468 | ||
| Grand Prix Ottawa 2014 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 29 | Youngs, Kurtis (1518) | Won 2-0 | +181518 |
| 3sealed | 170 | Garcia Perez, Ignacio (1538) | Lost 0-2 | -171501 |
| 4sealed | 245 | Robertson, Ian (1816) | Lost 0-2 | -131488 |
| 5sealed | 423 | Zwanenburg, Jeremy (1501) | Won 2-0 | +181506 |
| 6sealed | 299 | Rocha Lima, Edmilson R (1514) | Lost 0-2 | -171489 |
| top | average opponent: 1577record: 2-3 | new rating: 1489 | ||