Walsh, Matthew
Current rating: 1425
| Grand Prix Detroit 2019 (M20 limited) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 76 | Busch, Joshua (1465) | Lost 0-2 | -191459 |
| 2sealed | 174 | Rogers, Joy (1481) | Lost 0-2 | -171442 |
| 3sealed | 120 | Bayrak, Iskender (1538) | Lost 0-2 | -171425 |
| top | average opponent: 1495record: 0-3 | new rating: 1425 | ||
| Grand Prix Niagara Falls 2019 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 231 | Thorn, Adam (1537) | Won 2-0 | +191519 |
| 2legacy | 215 | Slaff, Steven (1543) | Won 2-0 | +181537 |
| 3legacy | 123 | Roukas, Sam (1852) | Lost 0-2 | -121525 |
| 4legacy | 274 | Corrigan, Abe (1842) | Lost 0-2 | -131512 |
| 5legacy | 286 | Keefe, William (1330) | Won 2-1 | +151527 |
| 6legacy | 216 | Blanchette, Jamie (1716) | Lost 1-2 | -141513 |
| 7legacy | 268 | Mitchell, Raymond (1637) | Lost 1-2 | -161497 |
| 8legacy | 247 | Periot, Maigan (1427) | Lost 1-2 | -191478 |
| top | average opponent: 1610record: 3-5 | new rating: 1478 | ||
| Grand Prix Toronto 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 270 | Vader, Sharon (1500) | Won 2-0 | +181518 |
| 2standard | 102 | Mackey, Jay (1470) | Won 2-1 | +171535 |
| 3standard | 15 | Nguyen, Lan (1654) | Lost 0-2 | -161519 |
| 4standard | 365 | Ravanello, Trevor (1459) | Lost 1-2 | -191500 |
| top | average opponent: 1521record: 2-2 | new rating: 1500 | ||