Mahoney-sunstrum, Jeffery
Current rating: 1458
Record: 1-4
| Regional Championships Toronto 2023 Cycle 4 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 3 | Da, Andrew (1627) | Lost 0-2 | -161484 |
| 2pioneer | 96 | Gregg, Kaya (1654) | Lost 1-2 | -151469 |
| 3pioneer | 140 | Lee, Kelvin (1594) | Lost 0-2 | -151454 |
| 4pioneer | 157 | Farren, April (1567) | Won 2-0 | +201474 |
| 5pioneer | 121 | Potter, Jack (1625) | Lost 0-2 | -161458 |
| average opponent: 1613record: 1-4 | new rating: 1458 | |||