Maples, Derek
Current rating: 1522
Record: 14-15
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 50 | Bennett, Alfred (1540) | Won 0-0 | +191527 |
| 3sealed | 248 | Syed, Zan (1846) | Lost 1-2 | -121515 |
| 4sealed | 248 | Long, Marshall (1466) | Won 2-0 | +171532 |
| 5sealed | 248 | Xia, Erdong (1845) | Lost 0-2 | -131519 |
| 6sealed | 248 | Sato, Yugo (1636) | Won 2-0 | +201539 |
| 7sealed | 248 | Beniamino, David (1594) | Lost 1-2 | -171522 |
| top | average opponent: 1655record: 3-3 | new rating: 1522 | ||
| Grand Prix Memphis 2019 (RNA standard) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 130 | Loveman, Eli (1858) | Lost 1-2 | -121529 |
| 4standard | 130 | Mason, Donald (1400) | Lost 0-2 | -211508 |
| top | average opponent: 1629record: 0-2 | new rating: 1508 | ||
| Grand Prix Memphis 2018 (RIX standard) | starting rating: 1565 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 107 | Flores, Christian (1575) | Lost 1-2 | -181547 |
| 3standard | 316 | Pearson, Matthew (1491) | Won 2-1 | +171564 |
| 4standard | 213 | Alexander, Zachary (1541) | Lost 0-2 | -181546 |
| 5standard | 303 | Cuesta, Ricardo (1500) | Lost 0-2 | -191527 |
| 6standard | 351 | Niemczyk, Ryan (1509) | Lost 0-2 | -181509 |
| 7standard | 341 | Chavez, Samuel (1465) | Won 2-0 | +171526 |
| 8standard | 265 | Rich, Jarus (1364) | Won 2-0 | +151541 |
| top | average opponent: 1492record: 3-4 | new rating: 1541 | ||
| Grand Prix Atlanta 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 320 | Chambers, Alison (1459) | Won 2-1 | +171517 |
| 3standard | 47 | Stewart, Michael (1810) | Won 2-0 | +231540 |
| 4standard | 43 | Blank, Jonathan (1691) | Lost 0-2 | -151525 |
| 5standard | 245 | Claudel, Slater (1846) | Lost 0-2 | -121513 |
| 6standard | 297 | Acuna, Martin (1539) | Won 2-1 | +181531 |
| 7standard | 231 | Fulgium, James (1897) | Lost 0-2 | -111520 |
| 8standard | 278 | LeBlanc, Frank (1605) | Won 2-1 | +191539 |
| 9standard | 192 | Miles, Aaron (1574) | Won 2-1 | +191558 |
| 10standard | 189 | Ritter, Jeffrey (1573) | Won 2-0 | +181576 |
| 11standard | 63 | Stankey, Matt (1875) | Lost 0-2 | -131563 |
| 12standard | 130 | Dasher, Ethan (1682) | Won 2-1 | +211584 |
| 13standard | 78 | Bretthorst, Robert (1403) | Lost 1-2 | -221562 |
| 14standard | 131 | Camp, Marcus (1569) | Won 2-0 | +181580 |
| 15standard | 99 | Rosum, Jonathan (1738) | Lost 0-2 | -151565 |
| top | average opponent: 1661record: 8-6 | new rating: 1565 | ||