Jonah, Brandon
Current rating: 1474
Record: 13-16-1
| Regional Championships Vancouver 2023 (ONE standard) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 62 | Robdrup, Andy (1763) | Lost 0-2 | -141499 |
| 2standard | 53 | Pham, Hoang Ha (1664) | Lost 0-2 | -151484 |
| 3standard | 76 | Senchuk, Anthony (1521) | Lost 1-2 | -171467 |
| 4standard | 73 | Liu, Alexander (1538) | Won 2-0 | +191486 |
| 5standard | 60 | Knox, Nathaniel (1813) | Lost 1-2 | -121474 |
| top | average opponent: 1660record: 1-4 | new rating: 1474 | ||
| Grand Prix Vancouver 2018 (UMA limited) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 125 | Cassels, Iain (1623) | Lost 0-2 | -161510 |
| 4sealed | 196 | Evans, Jessee (1478) | Lost 1-2 | -191491 |
| 5sealed | 219 | Ulmer, Benjamin (1495) | Won 2-1 | +191510 |
| 6sealed | 145 | Hardy, Robert (1521) | Won 2-1 | +181528 |
| 7sealed | 134 | Stark, Graham (1692) | Lost 1-2 | -151513 |
| top | average opponent: 1562record: 2-3 | new rating: 1513 | ||
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 30 | Asbjornsen, Chad (1697) | Lost 0-2 | -151489 |
| 3standard | 409 | Charboneau, Louis (1468) | Lost 1-2 | -181471 |
| 4standard | 501 | Knizek, Brandon (1486) | Won 2-1 | +181489 |
| 5standard | 472 | Plant, John (1542) | Won 2-1 | +191508 |
| 6standard | 348 | Walker, Gregory (1598) | Won 2-1 | +201528 |
| 7standard | 196 | Easton, Jaesun (1440) | Won 2-0 | +161544 |
| 8standard | 171 | Donnelly, William (1557) | Lost 1-2 | -181526 |
| top | average opponent: 1541record: 4-3 | new rating: 1526 | ||
| Grand Prix Vancouver 2016 (OGW limited) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 303 | Sapinski, Dylan (1500) | Won 2-0 | +181516 |
| 2sealed | 98 | Howard, Brian (1518) | Draw 1-1 | 01516 |
| 3sealed | 351 | Talbot, Adam (1491) | Lost 0-0 | -181498 |
| 4sealed | 535 | Stadnicki, Steven (1538) | Won 2-0 | +181516 |
| 5sealed | 354 | Corrie, Christopher (1437) | Won 2-1 | +171533 |
| 6sealed | 232 | Engelbart, Matt (1572) | Lost 1-2 | -171516 |
| 7sealed | 370 | Engle, Woodrow (1857) | Lost 0-2 | -121504 |
| top | average opponent: 1559record: 3-3-1 | new rating: 1504 | ||
| Grand Prix Vancouver 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 322 | Lee, Henry (1465) | Lost 1-2 | -191481 |
| 2modern | 328 | Garcera, Angelo Joseph (1482) | Won 2-1 | +181499 |
| 3modern | 352 | Westberg, Ryan (1518) | Lost 0-2 | -171482 |
| 4modern | 413 | Vasara, Cedar (1482) | Won 2-1 | +181500 |
| 5modern | 372 | Konings, Richard J (1464) | Won 2-0 | +171517 |
| 6modern | 284 | Phan, Tuan (1464) | Lost 0-2 | -191498 |
| top | average opponent: 1479record: 3-3 | new rating: 1498 | ||