Merrell, Joshua
Current rating: 1420
Record: 5-10
| Regional Championships Dallas 2023 (pioneer) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 395 | Blaiotta, Derek (1632) | Lost 0-2 | -141433 |
| 2pioneer | 540 | Wooden, Evan (1482) | Won 2-0 | +181451 |
| 3pioneer | 200 | Boyer, Glen (1499) | Lost 1-2 | -171434 |
| 4pioneer | 507 | Winkle, Jacob (1484) | Won 2-1 | +191453 |
| 5pioneer | 246 | Klein, Tyler (1579) | Lost 1-2 | -161437 |
| 6pioneer | 429 | Bishop, Jim (1483) | Lost 0-2 | -171420 |
| top | average opponent: 1526record: 2-4 | new rating: 1420 | ||
| Grand Prix Atlantic City 2015 (DTK limited) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 454 | Weaver, Zach (1447) | Won 2-0 | +181497 |
| 2sealed | 138 | Cohen, Matthew (1614) | Lost 1-2 | -161481 |
| 3sealed | 592 | Chen, Yiwen (1599) | Lost 0-2 | -161465 |
| 4sealed | 571 | Guarino, Susanna (1483) | Lost 0-2 | -181447 |
| top | average opponent: 1535record: 1-3 | new rating: 1447 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 1002 | Gagnon, David (1440) | Won 2-0 | +171517 |
| 2modern | 1073 | Garnett, Zachary (1517) | Lost 1-2 | -181499 |
| 3modern | 1493 | Berry, Matt (1497) | Lost 0-2 | -181481 |
| 4modern | 1545 | Kupin, Thomas (1448) | Won 2-0 | +171498 |
| 5modern | 1456 | Chenevert, Andrew (1438) | Lost 0-2 | -191479 |
| top | average opponent: 1468record: 2-3 | new rating: 1479 | ||