Brown, Jeffrey
Current rating: 1516
Record: 12-11
| Grand Prix Toronto 2019 (modern) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 227 | Williams, Andrew (1430) | Won 2-1 | +161577 |
| 2modern | 153 | Aitchison, Evan (1546) | Lost 0-2 | -191558 |
| 3modern | 376 | Godden, Joshua (1574) | Lost 0-2 | -181540 |
| 4modern | 530 | Boulet, Isaac (1478) | Won 2-1 | +171557 |
| 5modern | 324 | Kelly, Darren (1499) | Lost 1-2 | -191538 |
| 6modern | 413 | Leonard, Matt (1415) | Won 2-0 | +161554 |
| 7modern | 299 | Geller, Zachary (1500) | Lost 1-2 | -191535 |
| 8modern | 295 | Falvey, John (1477) | Lost 0-2 | -191516 |
| average opponent: 1490record: 3-5 | new rating: 1516 | |||
| Grand Prix Toronto 2017 (HOU limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 406 | Bloss, Lucas (1500) | Won 2-0 | +181518 |
| 2sealed | 25 | Szasz, Michael (1582) | Lost 1-2 | -171501 |
| 3sealed | 531 | Miles-Berry, Steve (1504) | Won 2-0 | +181519 |
| 4sealed | 293 | Woyiwada, Tyler (1485) | Won 2-1 | +181537 |
| 5sealed | 266 | Noble, Simon (1545) | Won 2-1 | +181555 |
| 6sealed | 68 | Robinson, Connor (1628) | Won 2-1 | +191574 |
| 7sealed | 34 | Downing, Ian (1604) | Lost 1-2 | -171557 |
| 8sealed | 133 | Russell, Griffin (1546) | Won 2-0 | +171574 |
| 9sealed | 40 | Schwartz, Jeffrey (1573) | Won 2-1 | +181592 |
| 10draft | 63 | Wilmoth, Andrew (1586) | Won 2-1 | +181610 |
| 11draft | 61 | Lu, Jiekun (1698) | Lost 0-2 | -161594 |
| 12draft | 60 | Balducci, Tommas (1498) | Lost 0-2 | -201574 |
| 13draft | 144 | Jefkins, Michael (1588) | Won 2-1 | +181592 |
| 14draft | 113 | Barkon, Daniel (1719) | Lost 0-2 | -151577 |
| 15draft | 83 | Pinsky, Matt (1705) | Lost 1-2 | -161561 |
| average opponent: 1584record: 9-6 | new rating: 1561 | |||