Brown, Jonathan
Current rating: 1445
Record: 8-12-1
| Grand Prix Detroit 2016 (modern) | starting rating: 1442 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 256 | Vermillion, Cory (1597) | Draw 0-0 | +31445 |
| top | record: 0-0-1 | new rating: 1445 | ||
| Grand Prix Providence 2015 (DTK standard) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 62 | Hennigan, Mark (1523) | Won 2-0 | +181513 |
| 2standard | 45 | Goodwin, Tim (1518) | Lost 0-2 | -181495 |
| 3standard | 246 | Johnson, Brendon (1478) | Lost 0-2 | -181477 |
| 4standard | 421 | Palovich, Chris (1551) | Lost 1-2 | -171460 |
| 5standard | 424 | Creeden, Tyler (1466) | Lost 0-2 | -181442 |
| top | average opponent: 1507record: 1-4 | new rating: 1442 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 123 | McGough, Dillon (1453) | Lost 1-2 | -191499 |
| 2modern | 445 | Wisner, Steven (1448) | Won 2-1 | +171516 |
| 3modern | 253 | Hagaman, Charles (1423) | Won 2-0 | +171533 |
| 4modern | 171 | Evans, Jesse (1587) | Lost 1-2 | -181515 |
| 5modern | 314 | McKay, Zachary (1500) | Lost 0-2 | -181497 |
| 6modern | 344 | Cooper, Mitchell (1458) | Won 2-1 | +181515 |
| 7modern | 295 | Rapp, Michael (1483) | Won 2-1 | +171532 |
| 8modern | 180 | Harter, Kevin (1449) | Lost 0-2 | -201512 |
| 9modern | 178 | Ruck, Stephen (1517) | Lost 1-2 | -171495 |
| top | average opponent: 1480record: 4-5 | new rating: 1495 | ||
| Grand Prix Nashville 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 73 | Brinkman, Jason (1648) | Won 2-0 | +211521 |
| 5sealed | 6 | Ferrando, Matthew (1874) | Won 2-0 | +241545 |
| 6sealed | 19 | Auburn, Andrew (1574) | Lost 1-2 | -181527 |
| 7sealed | 56 | Davis, John (1668) | Won 2-0 | +211548 |
| 8sealed | 14 | Anderson, Todd (1888) | Lost 1-2 | -121536 |
| 9sealed | 116 | Morrison, Charles (1559) | Lost 0-2 | -181518 |
| top | average opponent: 1702record: 3-3 | new rating: 1518 | ||