Orr, Gregory
Current rating: 1398
Record: 11-18
| Grand Prix Portland 2018 (modern) | starting rating: 1432 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 400 | Pompeo, Chris (1489) | Won 2-1 | +191451 |
| 2modern | 384 | Hudec, Justin (1502) | Lost 0-2 | -171434 |
| 3modern | 555 | Frank, Kevin (1469) | Lost 0-2 | -171417 |
| 4modern | 647 | Mitchem, Owen (1375) | Lost 0-2 | -191398 |
| top | average opponent: 1459record: 1-3 | new rating: 1398 | ||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1420 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 254 | Kennedy, Garrett (1569) | Won 2-0 | +211441 |
| 2standard | 21 | Asai, Douglas (1518) | Lost 1-2 | -171424 |
| 3standard | 403 | Espe, Matt (1501) | Lost 0-2 | -161408 |
| 4standard | 660 | Michaels, Lev (1486) | Won 2-1 | +191427 |
| 5standard | 427 | Bradwell, Cody (1499) | Won 2-1 | +191446 |
| 6standard | 262 | Mendez, Jared (1517) | Won 2-1 | +201466 |
| 7standard | 238 | Foster III, Charles (1530) | Lost 0-2 | -171449 |
| 8standard | 340 | DeBuff, Michael (1521) | Lost 1-2 | -171432 |
| top | average opponent: 1517record: 4-4 | new rating: 1432 | ||
| Grand Prix Vancouver 2017 (modern) | starting rating: 1452 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 2382 | Larson, Monty (1500) | Won 2-0 | +191471 |
| 2modern | 2302 | Marshall, Liam (1571) | Won 2-1 | +201491 |
| 3modern | 2148 | Kemp, Jonathan (1537) | Lost 0-2 | -171474 |
| 4modern | 2457 | Holmberg, David (1506) | Lost 0-2 | -181456 |
| 5modern | 2544 | Chan, David (1479) | Lost 1-2 | -171439 |
| 6modern | 2547 | St Amand, Joshua (1408) | Lost 0-2 | -191420 |
| top | average opponent: 1500record: 2-4 | new rating: 1420 | ||
| Grand Prix Portland 2016 (EMN standard) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 575 | Merejil, Robert (1378) | Lost 0-2 | -191448 |
| 2standard | 476 | Ortiz, Sam (1433) | Lost 0-2 | -191429 |
| 3standard | 791 | Lugo, Hector (1464) | Won 2-0 | +191448 |
| 4standard | 722 | Creasman, Jason (1509) | Won 2-1 | +191467 |
| 5standard | 452 | Ma, Yousi (1644) | Lost 0-2 | -151452 |
| top | average opponent: 1486record: 2-3 | new rating: 1452 | ||
| Grand Prix Seattle 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 22 | Park, Ryan (1568) | Lost 0-2 | -171483 |
| 2extended | 136 | Johnson, Eric (1553) | Won 2-1 | +201503 |
| 3extended | 91 | Turner, David (1500) | Won 2-1 | +171520 |
| 4extended | 72 | Bunsongsikul, Ped (1587) | Lost 1-2 | -161504 |
| 5extended | 133 | Heath, James (1500) | Lost 1-2 | -181486 |
| 6extended | 128 | Blain, Michael (1465) | Lost 0-2 | -191467 |
| top | average opponent: 1529record: 2-4 | new rating: 1467 | ||