Duke, James
Current rating: 1515
Record: 6-6-2
| Grand Prix Denver 2019 (M20 standard) | starting rating: 1452 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 37 | Aguilar, Alexis (1471) | Lost 1-2 | -171435 |
| 2standard | 230 | Kirchmer, Gavin (1525) | Won 2-0 | +191454 |
| 3standard | 227 | Thomson, Ryan (1578) | Won 2-1 | +211475 |
| 4standard | 137 | Reed, Jonathan (1522) | Won 2-1 | +181493 |
| 5standard | 53 | Sundholm, Peter (1533) | Lost 1-2 | -171476 |
| 6standard | 181 | Arehart, Daniel (1701) | Won 2-0 | +221498 |
| 7standard | 120 | Cox, Andrew (1435) | Won 2-1 | +171515 |
| 8standard | 65 | Ramsey, Sean (1530) | Draw 1-1 | 01515 |
| average opponent: 1537record: 5-2-1 | new rating: 1515 | |||
| Grand Prix Denver 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4block | 2 | Kreba, Dennis A (1500) | Lost 0-2 | -181482 |
| 5block | 134 | Resendez, Festus (1505) | Draw 1-1 | 01482 |
| 6block | 95 | Messick, Ryan (1661) | Lost 0-2 | -141468 |
| 7block | 136 | Ward, Ryder (1516) | Lost 1-2 | -171451 |
| 8block | 134 | Strand, Brock A (1518) | Won 2-0 | +191470 |
| 9block | 101 | Martinez, Thomas J (1499) | Lost 0-2 | -181452 |
| average opponent: 1533record: 1-4-1 | new rating: 1452 | |||