Duncan, Stuart
Current rating: 1419
| Grand Prix San Diego 2013 (modern) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 93 | Flowers, Chris (1588) | Lost 0-2 | -161454 |
| 2modern | 262 | Del Carmen, Martin (1465) | Lost 0-2 | -181436 |
| 3modern | 315 | Warren, Natalie (1462) | Lost 0-2 | -171419 |
| top | average opponent: 1505record: 0-3 | new rating: 1419 | ||
| Grand Prix Anaheim 2012 (Innistrad block) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 43 | Maleki, Keenan (1465) | Draw 1-1 | 01485 |
| 2block | 221 | Peacock, Robert (1590) | Lost 0-2 | -161469 |
| 3block | 341 | Galbraith, John (1482) | Won 2-0 | +181487 |
| 4block | 316 | Cartwright, Brandon (1501) | Won 2-1 | +181505 |
| 5block | 229 | Rivera, Ryan (1549) | Lost 0-2 | -171488 |
| 6block | 290 | Munoz Perez, Osvaldo F (1503) | Lost 1-2 | -181470 |
| top | average opponent: 1515record: 2-3-1 | new rating: 1470 | ||
| Grand Prix San Diego 2011 (ISD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 412 | Melton, Curtis J (1500) | Lost 0-2 | -181482 |
| 2sealed | 575 | Nelson, Colleen (1482) | Won 2-0 | +181500 |
| 3sealed | 508 | Parker, James S (1501) | Won 2-0 | +181518 |
| 4sealed | 549 | Kinsey, Blake (1564) | Lost 1-2 | -171501 |
| 5sealed | 546 | Pacifico, Andrew (1623) | Lost 1-2 | -161485 |
| 6sealed | 577 | Clarke, Matt D (1482) | Won 2-1 | +181503 |
| 7sealed | 542 | Tabor, Matthew (1503) | Lost 0-2 | -181485 |
| top | average opponent: 1522record: 3-4 | new rating: 1485 | ||