Doi, Derek
Current rating: 1376
Record: 5-13
| Grand Prix Phoenix 2018 (modern) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 419 | Nelson, Sam (1475) | Lost 0-2 | -181409 |
| 2modern | 495 | Sapp, Hayden (1483) | Lost 1-2 | -161393 |
| 3modern | 592 | Collins, Bayley (1464) | Lost 0-2 | -171376 |
| top | average opponent: 1474record: 0-3 | new rating: 1376 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 25 | Mathieson, Robert (1512) | Won 2-0 | +201451 |
| 2modern | 524 | Bruce, Andrew (1532) | Lost 0-2 | -171434 |
| 3modern | 840 | Cox, Philip (1495) | Won 2-1 | +191453 |
| 4modern | 782 | Laughton, Don (1487) | Won 2-0 | +191472 |
| 5modern | 535 | Lopez, Estevan (1630) | Lost 0-2 | -151457 |
| 6modern | 925 | Martin-Smith, Edward (1535) | Lost 1-2 | -171440 |
| 7modern | 865 | Meyer, Benjamin (1673) | Lost 0-2 | -131427 |
| top | average opponent: 1552record: 3-4 | new rating: 1427 | ||
| Grand Prix Los Angeles 2016 (modern) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 480 | Sherrill, Sean (1500) | Lost 0-2 | -171448 |
| 2modern | 836 | Barton, Cory (1482) | Lost 0-2 | -181430 |
| 3modern | 1068 | Botelho, David (1449) | Won 2-1 | +191449 |
| 4modern | 904 | Lerdal, Henry (1466) | Won 2-1 | +181467 |
| 5modern | 636 | David, Joshua (1532) | Lost 0-2 | -171450 |
| 6modern | 822 | Truong, Richard (1406) | Lost 0-2 | -191431 |
| top | average opponent: 1472record: 2-4 | new rating: 1431 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 112 | Simon, Roland (1558) | Lost 1-2 | -171483 |
| 2sealed | 326 | Baker, Steven (1489) | Lost 0-2 | -181465 |
| top | average opponent: 1524record: 0-2 | new rating: 1465 | ||