Brown, Derek
Current rating: 1496
Record: 29-31-1
| Grand Prix Calgary 2019 (modern) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 231 | Pylack, Channing (1500) | Won 2-1 | +191516 |
| 2modern | 27 | Pavic, Marinko (1687) | Won 2-1 | +211537 |
| 3modern | 73 | Statham, Richard (1507) | Lost 1-2 | -191518 |
| 4modern | 109 | Withers, Jordan (1514) | Won 2-0 | +181536 |
| 5modern | 87 | Onagan, Chris (1432) | Won 2-1 | +161552 |
| 6modern | 26 | Buttazzoni, Mike (1488) | Lost 0-2 | -191533 |
| 7modern | 151 | Tsang, Charles (1488) | Lost 0-2 | -191514 |
| 8modern | 146 | Hawron, Richard (1492) | Lost 0-2 | -181496 |
| top | average opponent: 1514record: 4-4 | new rating: 1496 | ||
| Grand Prix Minneapolis 2017 (HOU standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 60 | Jahn-Vavrus, Anton (1485) | Lost 0-2 | -191497 |
| top | record: 0-1 | new rating: 1497 | ||
| Grand Prix Utrecht 2017 (AER standard) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 269 | Jevon, Jessica (1500) | Won 2-0 | +181528 |
| 2standard | 145 | Korevaar, Martijn (1558) | Lost 0-2 | -171511 |
| 3standard | 458 | Breuninger, Martin (1552) | Won 2-0 | +181529 |
| 4standard | 382 | van der End, Martijn (1658) | Lost 0-2 | -151514 |
| 5standard | 388 | Rogiers, Sander (1540) | Lost 0-2 | -181496 |
| 6standard | 508 | Brinkman, Martin (1317) | Won 2-0 | +151511 |
| 7standard | 307 | Muller, Johannes (1571) | Won 2-1 | +191530 |
| 8standard | 328 | Grefling, Jakub (1576) | Won 2-1 | +191549 |
| 9standard | 246 | Schetka, Evgeny (1639) | Won 2-1 | +201569 |
| 10standard | 146 | Le Briand, Loic (1696) | Lost 0-2 | -161553 |
| 11standard | 179 | Dubelaar, Corne (1635) | Lost 0-2 | -171536 |
| 12standard | 174 | Toth, Ferenc (1403) | Lost 0-2 | -201516 |
| top | average opponent: 1554record: 6-6 | new rating: 1516 | ||
| Grand Prix Indianapolis 2016 (modern) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 32 | Hughey, Randy (1500) | Won 2-0 | +191507 |
| 2modern | 39 | Bradley, Collin (1519) | Lost 0-2 | -181489 |
| 3modern | 631 | Alongi, Adam (1646) | Won 2-0 | +211510 |
| 4modern | 591 | Calamaro, Yaakov (1517) | Lost 0-2 | -181492 |
| 5modern | 569 | Chen, Ziang (1515) | Lost 1-2 | -181474 |
| 6modern | 784 | Wilson, Brian (1512) | Won 2-0 | +191493 |
| 7modern | 623 | Echavarria, Vincent (1490) | Won 2-0 | +181511 |
| 8modern | 427 | Balsiger, Jake (1490) | Won 2-0 | +181529 |
| 9modern | 221 | Hammaker, Joseph (1518) | Lost 1-2 | -191510 |
| top | average opponent: 1523record: 5-4 | new rating: 1510 | ||
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 156 | Walker, Rob (1528) | Draw 1-1 | +11464 |
| 2standard | 361 | Tugas, Niko (1500) | Won 2-1 | +191483 |
| 3standard | 306 | Emerson, Ryan (1518) | Won 2-0 | +191502 |
| 4standard | 172 | Hjersman, Johannan (1574) | Won 2-1 | +191521 |
| 5standard | 82 | Jianu, Michael (1504) | Lost 1-2 | -181503 |
| 6standard | 207 | Buckendorf, Eric (1717) | Lost 0-2 | -151488 |
| top | average opponent: 1557record: 3-2-1 | new rating: 1488 | ||
| Grand Prix Los Angeles 2014 (KTK standard) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 43 | Elyakoubi, Amine (1500) | Won 2-0 | +191494 |
| 2standard | 356 | Badeaux, Jeremy (1519) | Lost 0-2 | -181476 |
| 3standard | 560 | Gutierrez, Luis (1650) | Lost 1-2 | -151461 |
| 4standard | 643 | Wolvek, David (1516) | Won 2-0 | +191480 |
| 5standard | 554 | Rando, Alex (1521) | Lost 0-2 | -171463 |
| top | average opponent: 1541record: 2-3 | new rating: 1463 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 905 | Wenrich, Christopher (1500) | Won 2-1 | +191466 |
| 2sealed | 784 | Durbin, Dustin (1480) | Lost 0-2 | -181448 |
| 3sealed | 391 | Tobin, Conor (1501) | Won 2-1 | +191467 |
| 4sealed | 245 | Haugen, Chris (1518) | Lost 0-0 | -171450 |
| 5sealed | 301 | Nguyen, Thanh (1610) | Won 2-0 | +211471 |
| 6sealed | 248 | Smigielski, AJ (1469) | Won 2-1 | +181489 |
| 7sealed | 189 | Saporito, Thiago (1743) | Lost 0-2 | -141475 |
| top | average opponent: 1546record: 4-3 | new rating: 1475 | ||
| Grand Prix Washington DC 2013 (legacy) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 315 | Staples, Joshua (1552) | Lost 1-2 | -171482 |
| 2legacy | 219 | Lockhart, Keith (1480) | Lost 1-2 | -181464 |
| 3legacy | 709 | Rodriguez, Frank (1514) | Lost 0-2 | -171447 |
| top | average opponent: 1515record: 0-3 | new rating: 1447 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 680 | Olson, Lance (1525) | Lost 0-2 | -181482 |
| 2sealed | 1148 | Canada, Matthew (1482) | Won 2-1 | +181500 |
| 3sealed | 983 | Jenkins, Robert (1500) | Won 2-1 | +181518 |
| 4sealed | 1025 | Evans, Michael A (1493) | Won 2-0 | +181536 |
| 5sealed | 885 | Dixon, Lyle (1503) | Lost 1-2 | -191517 |
| 6sealed | 972 | Howley, Luke (1514) | Lost 0-2 | -181499 |
| top | average opponent: 1503record: 3-3 | new rating: 1499 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 496 | Thomas G., (1500) | Won 2-0 | +181518 |
| 2sealed | 213 | O'Connor, Marc (1484) | Won 2-0 | +171535 |
| 3sealed | 58 | Battiston, Dario (1511) | Lost 0-2 | -181517 |
| 4sealed | 495 | Mercier, Mathew (1556) | Lost 0-2 | -171500 |
| top | average opponent: 1513record: 2-2 | new rating: 1500 | ||