Duchesne, David
Current rating: 1505
Record: 8-10
| Regional Championships Toronto 2023 Cycle 4 (pioneer) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 42 | Kim, Jin (1774) | Lost 0-2 | -131462 |
| 2pioneer | 119 | Woolridge, Dylan (1502) | Won 2-0 | +191481 |
| 3pioneer | 54 | scrutton, simon (1412) | Won 2-1 | +171498 |
| 4pioneer | 53 | Biron, Xavier (1684) | Won 2-1 | +211519 |
| 5pioneer | 12 | Beldon, Omar (1870) | Lost 1-2 | -121507 |
| 6pioneer | 40 | Michie, Jack (1559) | Lost 1-2 | -171490 |
| 7pioneer | 59 | Nguyen, Steven (1460) | Won 2-1 | +171507 |
| 8pioneer | 58 | Kabir, Fuad (1473) | Won 2-1 | +181525 |
| 9pioneer | 36 | Ngo, Alan (1835) | Lost 1-2 | -131512 |
| 10pioneer | 45 | Vaugeois, Christophe (1804) | Won 2-1 | +241536 |
| 11pioneer | 36 | O'Donnell, Caleb (1547) | Lost 0-2 | -181518 |
| 12pioneer | 46 | Trudel, Christian (1796) | Lost 0-2 | -131505 |
| average opponent: 1643record: 6-6 | new rating: 1505 | |||
| Regional Championships Toronto 2023 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 77 | Fang, Harry (1486) | Lost 1-2 | -181482 |
| 2pioneer | 125 | Ngo, Alan (1737) | Lost 0-2 | -141468 |
| 3pioneer | 121 | Hamel, Olivier (1565) | Won 2-0 | +201488 |
| 4pioneer | 103 | Ruschpler, Andrew (1459) | Won 2-0 | +181506 |
| 5pioneer | 36 | Zhang, Ben (1642) | Lost 0-2 | -161490 |
| 6pioneer | 81 | Wildman, Tyrel (1644) | Lost 0-2 | -151475 |
| average opponent: 1589record: 2-4 | new rating: 1475 | |||