Simmonds, Derrick
Current rating: 1486
| Grand Prix Austin 2020 (modern) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 251 | Dilgard, Nathan (1462) | Won 2-1 | +181493 |
| 2modern | 107 | Smith, Courtney (1513) | Won 2-0 | +181511 |
| 3modern | 15 | Keith, Jody (1821) | Lost 1-2 | -121499 |
| 4modern | 221 | Harris, Jake (1517) | Won 2-1 | +181517 |
| 5modern | 80 | Rodriguez, Robert (1535) | Lost 1-2 | -171500 |
| 6modern | 202 | Day, Jaxon (1726) | Lost 1-2 | -141486 |
| top | average opponent: 1596record: 3-3 | new rating: 1486 | ||
| Grand Prix Dallas-Fort Worth 2019 (modern) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 309 | Pai, Ryan (1482) | Lost 1-2 | -191517 |
| 2modern | 452 | Karr, Ethan (1480) | Won 2-1 | +171534 |
| 3modern | 383 | Hoppe, Chase (1465) | Lost 0-2 | -191515 |
| 4modern | 477 | La Fountain, Phillip (1432) | Lost 0-2 | -191496 |
| 5modern | 517 | Perkins, James (1369) | Lost 0-2 | -211475 |
| top | average opponent: 1446record: 1-4 | new rating: 1475 | ||
| Grand Prix Charlotte 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 637 | Harless, Brandon (1500) | Won 2-0 | +181518 |
| 2modern | 340 | Lockwood, Daniel (1483) | Won 2-0 | +171535 |
| 3modern | 58 | Kanellis, David (1518) | Won 2-1 | +181553 |
| 4modern | 465 | Bernett, Evan (1557) | Won 2-1 | +181571 |
| 5modern | 76 | Ambrosio, Joe (1507) | Won 2-0 | +171588 |
| 6modern | 513 | Perlee, Travis (1612) | Lost 1-2 | -181570 |
| 7modern | 88 | Lopez, Jose Manuel (1521) | Won 2-1 | +171587 |
| 8modern | 105 | Macaraeg, Tad (1699) | Lost 0-2 | -151572 |
| 9modern | 183 | Bingham, William (1620) | Lost 1-2 | -181554 |
| 10modern | 220 | Cummings, Alan (1539) | Lost 1-2 | -181536 |
| top | average opponent: 1556record: 6-4 | new rating: 1536 | ||