Perecowicz, Jonathan
Current rating: 1470
Record: 9-13-2
| Regional Championships Toronto 2023 Cycle 4 (pioneer) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 56 | Livernoche, Alexandre (1700) | Won 2-0 | +221495 |
| 2pioneer | 26 | Miller, Les (1652) | Won 2-0 | +211516 |
| 3pioneer | 24 | Cameron, Michael (1539) | Won 2-1 | +181534 |
| 4pioneer | 15 | Goyet, Jean-Philippe (1574) | Lost 0-2 | -171517 |
| 5pioneer | 44 | Langlotz, Ben (1519) | Lost 1-2 | -181499 |
| 6pioneer | 75 | Zhang, Ben (1711) | Lost 0-2 | -141485 |
| 7pioneer | 89 | Biron, Xavier (1654) | Lost 0-2 | -151470 |
| top | average opponent: 1621record: 3-4 | new rating: 1470 | ||
| Regional Championships Toronto 2023 (pioneer) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 57 | Reynolds, Keegan (1428) | Lost 1-2 | -201488 |
| 2pioneer | 100 | Willette, Graham (1485) | Won 2-0 | +181506 |
| 3pioneer | 69 | Stein, Mathew (1724) | Lost 0-2 | -141492 |
| 4pioneer | 92 | Howe, Peter (1421) | Lost 1-2 | -191473 |
| top | average opponent: 1514record: 1-3 | new rating: 1473 | ||
| Regional Championships Ottawa 2023 (ONE standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 126 | Dery, Jonathan (1816) | Won 2-1 | +231539 |
| 2standard | 16 | Breau, Josh (1787) | Won 2-1 | +231562 |
| 3standard | 26 | Cadotte, Olivier (1536) | Lost 1-2 | -191543 |
| 4standard | 44 | Solave, Ryan (1676) | Draw 1-1 | +21545 |
| 5standard | 45 | Leduc Gauthier, Samuel (1587) | Lost 0-2 | -171528 |
| 6standard | 40 | Bourque, Adrien (1381) | Lost 0-2 | -201508 |
| top | average opponent: 1630record: 2-3-1 | new rating: 1508 | ||
| Regional Championships Toronto 2022 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 60 | Maas, Kyle (1549) | Won 2-0 | +191519 |
| 2pioneer | 55 | Kao, Daniel (1591) | Lost 1-2 | -171502 |
| 3pioneer | 56 | Dhaliwal, Shawn (1835) | Won 2-1 | +241526 |
| 4pioneer | 77 | Boyer, Luc-Alexandre (1729) | Draw 1-1 | +41530 |
| 5pioneer | 56 | Hu, Lance (1674) | Won 2-1 | +201550 |
| 6pioneer | 113 | Regimbald, Jean-Francois (1581) | Lost 0-2 | -171533 |
| 7pioneer | 56 | Turcotte, Owen (1582) | Lost 1-2 | -171516 |
| top | average opponent: 1649record: 3-3-1 | new rating: 1516 | ||