Dueckman, Matthew
Current rating: 1464
Record: 3-5
| Grand Prix Calgary 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 233 | Syriste, Kyle (1500) | Lost 0-2 | -181482 |
| 2modern | 383 | Bell, Jacob (1469) | Won 2-0 | +181500 |
| 3modern | 248 | Mistakenchief, Tyson (1500) | Lost 1-2 | -181482 |
| 4modern | 305 | Anderson, Chase (1484) | Lost 1-2 | -181464 |
| average opponent: 1488record: 1-3 | new rating: 1464 | |||
| Grand Prix Vancouver 2016 (OGW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 729 | Khosa, Buldip (1481) | Won 2-0 | +181518 |
| 2sealed | 344 | Jerzak, Jonathan (1518) | Lost 1-2 | -181500 |
| 3sealed | 668 | Lau, James (1507) | Won 0-0 | +181518 |
| 4sealed | 292 | Woodruff, Jesse (1518) | Lost 0-2 | -181500 |
| average opponent: 1506record: 2-2 | new rating: 1500 | |||