Cox, Brian
Current rating: 1510
Record: 34-34-4
| Grand Prix Oklahoma City 2019 (ELD standard) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 100 | Spicer, Richard (1390) | Won 2-0 | +151565 |
| 2standard | 51 | Phillips, Jase (1694) | Lost 1-2 | -161549 |
| 3standard | 96 | Kilburn, Brian (1344) | Won 2-1 | +151564 |
| 4standard | 104 | Madick, Turner (1716) | Lost 0-2 | -161548 |
| 5standard | 125 | Schexnayder, Spencer (1483) | Won 0-0 | +171565 |
| 6standard | 55 | Sounakhen, Saxon (1662) | Lost 0-2 | -161549 |
| 7standard | 91 | Jones, Maxwell (1563) | Lost 0-2 | -181531 |
| 8standard | 84 | Smith, Spencer (1362) | Lost 0-2 | -211510 |
| top | average opponent: 1527record: 3-5 | new rating: 1510 | ||
| Grand Prix Seattle 2018 (standard) (RIX standard) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 128 | Mccormick, Justin (1500) | Won 2-0 | +181572 |
| 2standard | 81 | Kerkhove, Thomas (1535) | Draw 1-1 | -11571 |
| 3standard | 687 | Nolan, Ryan 2 (1507) | Won 2-1 | +171588 |
| 4standard | 177 | Pratt-Bennett, Benjamen (1517) | Lost 0-2 | -201568 |
| 5standard | 334 | Schmitt, David (1540) | Lost 1-2 | -181550 |
| top | average opponent: 1520record: 2-2-1 | new rating: 1550 | ||
| Grand Prix Oklahoma City 2017 (modern) | starting rating: 1546 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 491 | Waugh, Reno (1500) | Lost 0-2 | -191527 |
| 2modern | 514 | Recer, Chad (1483) | Won 2-1 | +171544 |
| 3modern | 354 | Johnson, Kevin (1544) | Lost 0-2 | -181526 |
| 4modern | 557 | Simpson, Scott (1462) | Lost 0-2 | -191507 |
| 5modern | 614 | Sanford, Ryan (1463) | Won 2-0 | +171524 |
| 6modern | 433 | Wilson, David (1433) | Lost 0-2 | -201504 |
| 7modern | 476 | Spicer, Richard (1386) | Won 2-0 | +161520 |
| 8modern | 407 | Anderson, Nicholas (1467) | Won 2-0 | +171537 |
| 9modern | 290 | Harrison, Michael [USA] (1497) | Won 2-0 | +171554 |
| top | average opponent: 1471record: 5-4 | new rating: 1554 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1572 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 248 | Lonergan, Lucas (1500) | Draw 1-1 | -11571 |
| 2sealed | 175 | Loy, Connor (1500) | Lost 0-2 | -201551 |
| 3sealed | 282 | Alcover, Zackery (1464) | Lost 0-2 | -191532 |
| 4sealed | 269 | McGee, Mark (1466) | Won 2-0 | +171549 |
| 5sealed | 218 | McLaren, Paul (1481) | Won 1-0 | +161565 |
| 6sealed | 170 | Ibay, Raymond (1469) | Lost 1-2 | -191546 |
| top | average opponent: 1480record: 2-3-1 | new rating: 1546 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 63 | Linberg, CJ (1536) | Lost 1-2 | -181537 |
| 4sealed | 253 | Keller, Curtis (1520) | Won 2-0 | +181555 |
| 5sealed | 121 | Ball, Chris K (1556) | Won 2-0 | +181573 |
| 6sealed | 111 | Bauer, Michael (1566) | Won 2-0 | +171590 |
| 7sealed | 65 | Novak, Daniel A (1605) | Won 2-0 | +191609 |
| 8sealed | 30 | Malisiak, Ryne (1591) | Lost 0-2 | -191590 |
| 9sealed | 78 | Sweeney, Leo (1566) | Lost 1-2 | -181572 |
| top | average opponent: 1563record: 4-3 | new rating: 1572 | ||
| Grand Prix Philadelphia 2012 (RTR limited) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 556 | Guild, Jacob (1562) | Lost 1-2 | -171497 |
| 3sealed | 801 | Taft, Jake (1469) | Won 2-1 | +171514 |
| 4sealed | 666 | Flores, Edgar (1638) | Lost 1-2 | -151499 |
| 5sealed | 814 | Brush, Cody (1503) | Won 2-0 | +181517 |
| 6sealed | 670 | Sharkey Jr, James (1576) | Won 2-0 | +191536 |
| 7sealed | 630 | Bravstein, Jeffrey (1608) | Lost 1-2 | -171519 |
| 8sealed | 655 | Lange, Brian (1482) | Won 2-0 | +171536 |
| 9sealed | 621 | Baquero, Andy (1582) | Won 2-0 | +191555 |
| top | average opponent: 1552record: 5-3 | new rating: 1555 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 166 | Combs, Aaron M (1518) | Won 2-1 | +181532 |
| 3sealed | 245 | Schmidt, Joseph (1767) | Lost 0-2 | -141518 |
| 4sealed | 546 | Cholewa, Marius (1500) | Lost 1-2 | -181500 |
| 5sealed | 532 | McPiledriver, Brewcie (1463) | Lost 1-2 | -191481 |
| 6sealed | 598 | Betschart, Mauro (1445) | Lost 0-2 | -191462 |
| 7sealed | 500 | Nunez, David (1461) | Won 2-0 | +181480 |
| 8sealed | 395 | Fallarme, Mark (1384) | Won 2-1 | +171497 |
| 9sealed | 282 | Boismenu, Mathieu (1466) | Won 2-1 | +171514 |
| top | average opponent: 1501record: 4-4 | new rating: 1514 | ||
| Grand Prix Anaheim 2012 (Innistrad block) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 3block | 51 | Medland, Matt (1465) | Won 2-0 | +181505 |
| 4block | 123 | Pickett, Alastair (1620) | Won 2-0 | +201525 |
| 5block | 64 | Gonzales, Roberto (1552) | Lost 1-2 | -181507 |
| 6block | 45 | Neill, David (1671) | Lost 1-2 | -151492 |
| 7block | 188 | Chu, Kevin (1568) | Won 2-1 | +201512 |
| 8block | 67 | Weiss, Patrick (1565) | Won 2-1 | +191531 |
| 9block | 71 | Guzman, Edd (1577) | Lost 0-2 | -171514 |
| top | average opponent: 1574record: 4-3 | new rating: 1514 | ||
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1456 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 6 | Maurmeier, Ralph (1482) | Lost 0-2 | -181438 |
| 3standard | 397 | Metcalf, Scott (1542) | Won 2-1 | +201458 |
| 4standard | 354 | Walters, Christopher (1500) | Lost 0-2 | -171441 |
| 5standard | 405 | Hutchison, Daniel (1651) | Draw 1-1 | +31444 |
| 6standard | 473 | Gill, Andrew J (1549) | Won 2-0 | +201464 |
| 7standard | 348 | Aintrazi, Amer (1508) | Lost 0-2 | -171447 |
| 8standard | 332 | Afable, Coco B (1628) | Won 2-0 | +211468 |
| 9standard | 244 | Magnus, Sean (1515) | Won 2-0 | +191487 |
| top | average opponent: 1547record: 4-3-1 | new rating: 1487 | ||
| Grand Prix Houston 2010 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 50 | Tant, Nathan (1545) | Lost 1-2 | -171483 |
| 5extended | 80 | Wredberg, Gregory (1507) | Won 2-0 | +181501 |
| 6extended | 73 | Yurchick, Adam (1909) | Lost 0-2 | -111490 |
| 7extended | 94 | Bisconde, Jherjames R (1529) | Lost 1-2 | -171473 |
| 8extended | 106 | Vicini, Patrick (1460) | Lost 0-2 | -181455 |
| 9extended | 90 | Kurzban, Fred (1499) | Draw 1-1 | +11456 |
| top | average opponent: 1575record: 1-4-1 | new rating: 1456 | ||