Duncan, Thomas
Current rating: 1436
Record: 7-11
| Grand Prix Oklahoma City 2017 (modern) | starting rating: 1529 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 69 | Welling, Grant (1470) | Won 2-1 | +171546 |
| 2modern | 325 | Williams, Dustin (1517) | Lost 0-2 | -191527 |
| 3modern | 312 | Crain, Phoenix (1497) | Lost 0-2 | -191508 |
| 4modern | 475 | Stevenson, James (1679) | Lost 0-2 | -141494 |
| 5modern | 591 | Harlow, Dereck (1461) | Lost 0-2 | -191475 |
| 6modern | 564 | Schmitz, Selleck (1417) | Lost 0-2 | -191456 |
| 7modern | 520 | Cox, Jacie (1430) | Lost 1-2 | -191437 |
| 8modern | 452 | Lawrence, Madelyn (1408) | Lost 1-2 | -181419 |
| 9modern | 385 | Caudill, Alaric (1376) | Won 2-0 | +171436 |
| average opponent: 1473record: 2-7 | new rating: 1436 | |||
| Grand Prix Dallas-Fort Worth 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 607 | Edwards, Jace (1500) | Lost 0-2 | -181482 |
| 2modern | 722 | Gadbury, Eric (1436) | Won 2-0 | +171499 |
| 3modern | 768 | Robertson, Christopher (1498) | Lost 0-2 | -181481 |
| 4modern | 719 | Morris, Philip (1519) | Won 2-0 | +191500 |
| 5modern | 505 | Weaver, Luke (1502) | Won 2-1 | +181518 |
| 6modern | 537 | Nguyen, Minh (1668) | Won 2-0 | +211539 |
| 7modern | 396 | Baraniecki, Michael (1881) | Lost 1-2 | -121527 |
| 8modern | 440 | Otenti, Nicholas (1601) | Lost 1-2 | -171510 |
| 9modern | 485 | Alvarado, Angel (1545) | Won 2-1 | +191529 |
| average opponent: 1572record: 5-4 | new rating: 1529 | |||