Cook, Brennen
Current rating: 1420
Record: 43-55-2 (GP) / 1-5 (professional)
Grand Prix Denver 2008Pro Tour Honolulu 2009Grand Prix Oakland 2010Grand Prix Columbus 2010Grand Prix Portland 2010Grand Prix Denver 2011Grand Prix Lincoln 2012Grand Prix Salt Lake City 2012Grand Prix Denver 2015Grand Prix Oakland 2016Grand Prix Albuquerque 2016Grand Prix Denver 2016Grand Prix Omaha 2017Grand Prix Denver 2017
| Grand Prix Denver 2017 (HOU standard) | starting rating: 1425 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 230 | Rodriguez, Francisco (1414) | Won 2-0 | +181443 |
| 2standard | 244 | Rockefeller, Ben (1529) | Lost 1-2 | -171426 |
| 3standard | 384 | Holland, Eliot (1498) | Won 2-1 | +201446 |
| 4standard | 356 | Plummer, Daniel (1519) | Lost 0-2 | -171429 |
| 5standard | 422 | Madouros, David (1500) | Won 2-0 | +191448 |
| 6standard | 189 | Darrow, Elliot (1669) | Lost 1-2 | -141434 |
| 7standard | 267 | Schmitt, David (1467) | Won 2-1 | +191453 |
| 8standard | 296 | Strodl, Courtland (1542) | Lost 1-2 | -171436 |
| 9standard | 264 | Jenkins, Bud (1504) | Lost 0-2 | -161420 |
| top | average opponent: 1516record: 4-5 | new rating: 1420 | ||
| Grand Prix Omaha 2017 (AKH standard) | starting rating: 1390 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 24 | Francis, Christopher (1381) | Lost 0-2 | -191371 |
| 2standard | 264 | Thomas, Tristan (1465) | Won 2-0 | +201391 |
| 3standard | 289 | Davis, Dylon (1501) | Lost 0-2 | -161375 |
| 4standard | 277 | Gudimani, Manik (1483) | Won 2-1 | +201395 |
| 5standard | 196 | Perigo, Nathanael (1575) | Won 2-1 | +211416 |
| 6standard | 236 | Driscoll, Adam (1597) | Lost 1-2 | -141402 |
| 7standard | 266 | Workman, Marcelix (1500) | Won 2-1 | +191421 |
| 8standard | 219 | Nelson, Jon (1487) | Lost 0-2 | -161405 |
| 9standard | 185 | Sagartz, Stephen (1536) | Won 2-0 | +201425 |
| top | average opponent: 1503record: 5-4 | new rating: 1425 | ||
| Grand Prix Denver 2016 (KLD standard) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 204 | Hristis, Michael (1780) | Lost 1-2 | -121421 |
| 2standard | 495 | Bugg, Abel (1482) | Won 2-0 | +191440 |
| 3standard | 467 | McClelon III, Robert (1485) | Lost 0-2 | -171423 |
| 4standard | 572 | Whitcomb, Michael (1487) | Lost 0-2 | -171406 |
| 5standard | 612 | Aguilar, Uhriaha (1464) | Lost 0-0 | -161390 |
| top | average opponent: 1540record: 1-4 | new rating: 1390 | ||
| Grand Prix Albuquerque 2016 (SOI limited) | starting rating: 1418 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 63 | Wynne, Dustin (1459) | Won 2-0 | +191437 |
| 2sealed | 229 | Keeto, Xavier (1517) | Lost 0-2 | -171420 |
| 3sealed | 362 | Camilleri, Adrian (1560) | Won 2-0 | +211441 |
| 4sealed | 200 | Welty, Terry (1620) | Draw 1-1 | +31444 |
| 5sealed | 276 | Bezerra-Clark, Christopher (1564) | Lost 0-2 | -161428 |
| 6sealed | 365 | Watkins, Jason (1656) | Lost 0-2 | -141414 |
| 7sealed | 380 | Garcia, Jeremy (1483) | Won 2-0 | +191433 |
| top | average opponent: 1551record: 3-3-1 | new rating: 1433 | ||
| Grand Prix Oakland 2016 (BFZ standard) | starting rating: 1424 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 554 | Sterbenz, Ryan (1653) | Lost 1-2 | -141410 |
| 2standard | 534 | Imano, Terry (1493) | Won 2-1 | +201430 |
| 3standard | 640 | Rodriguez, Armando (1497) | Lost 0-2 | -171413 |
| 4standard | 689 | Overing, Bob (1466) | Won 2-0 | +191432 |
| 5standard | 610 | Brown, Edward (1387) | Lost 0-2 | -191413 |
| 6standard | 636 | Chatfield, Lawrence (1560) | Lost 1-2 | -151398 |
| 7standard | 640 | Myerhoff, Mathilda (1466) | Won 2-1 | +191417 |
| 8standard | 546 | La, Davis (1486) | Lost 1-2 | -171400 |
| 9standard | 463 | Cota, Nicholas (1382) | Won 2-1 | +181418 |
| top | average opponent: 1488record: 4-5 | new rating: 1418 | ||
| Grand Prix Denver 2015 (KTK standard) | starting rating: 1432 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 372 | Boyd, Jimmy (1500) | Won 2-0 | +191451 |
| 2standard | 292 | Engstrom, Jacob (1518) | Won 2-1 | +201471 |
| 3standard | 173 | Nickerson, Amy (1537) | Won 2-0 | +191490 |
| 4standard | 40 | Pierce, Stephen (1559) | Lost 0-2 | -171473 |
| 5standard | 120 | Allen, Brandon (1383) | Lost 1-2 | -201453 |
| 6standard | 349 | Arnold, Zaque (1635) | Lost 0-2 | -141439 |
| 7standard | 364 | Jeffs, Don (1498) | Lost 0-2 | -171422 |
| 8standard | 47 | Piil, McKennon (1481) | Lost 1-2 | -171405 |
| 9standard | 239 | Hileman, Alexis (1462) | Won 2-0 | +191424 |
| top | average opponent: 1508record: 4-5 | new rating: 1424 | ||
| Grand Prix Salt Lake City 2012 (DKA standard) | starting rating: 1359 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 36 | Paulus, Cameron (1500) | Won 2-0 | +211380 |
| 2standard | 18 | Lester, Peter (1518) | Won 2-0 | +201400 |
| 3standard | 33 | Smith, Adam (1521) | Lost 1-2 | -151385 |
| 4standard | 285 | Bird, Richard (1518) | Lost 0-2 | -161369 |
| 5standard | 329 | Rohwer, Robert (1471) | Won 2-0 | +201389 |
| 6standard | 313 | McDougall, Logan (1518) | Won 2-0 | +201409 |
| 7standard | 238 | Zito, Curtis (1503) | Won 2-0 | +201429 |
| 8standard | 151 | Laford, Marshall (1540) | Won 2-1 | +201449 |
| 9standard | 43 | Gonzales, Roberto (1521) | Lost 1-2 | -171432 |
| top | average opponent: 1512record: 6-3 | new rating: 1432 | ||
| Grand Prix Lincoln 2012 (modern) | starting rating: 1349 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 24 | Hemmann, Joseph (1456) | Won 2-0 | +201369 |
| 2modern | 107 | Berrios, Stephen (1665) | Lost 0-2 | -131356 |
| 3modern | 206 | Neuman, Joseph (1467) | Won 2-0 | +201376 |
| 4modern | 147 | White, Mike (1518) | Won 2-1 | +211397 |
| 5modern | 155 | Hans, Jeff (1528) | Lost 1-2 | -161381 |
| 6modern | 170 | Canady, Loren D (1522) | Lost 1-2 | -151366 |
| 7modern | 204 | Schousboe, Jason (1842) | Lost 1-2 | -101356 |
| 8modern | 168 | Patterson, Rachel (1413) | Lost 1-2 | -171339 |
| 9modern | 147 | Witthuhn, Logan M (1481) | Won 2-0 | +201359 |
| top | average opponent: 1544record: 4-5 | new rating: 1359 | ||
| Grand Prix Denver 2011 (MBS limited) | starting rating: 1350 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 82 | Randol, Mark (1483) | Won 2-1 | +211371 |
| 2sealed | 14 | Abrams, Matt (1629) | Lost 0-2 | -141357 |
| 3sealed | 71 | Fullbright, Shelby (1501) | Draw 1-1 | +31360 |
| 4sealed | 132 | Van Cleave, Trey (1751) | Lost 0-2 | -111349 |
| top | average opponent: 1591record: 1-2-1 | new rating: 1349 | ||
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1356 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 145 | Thibeau, Markus (1471) | Lost 1-2 | -161340 |
| 3sealed | 410 | Petersen, Chase (1500) | Won 2-1 | +211361 |
| 4sealed | 205 | Bechtel, Ray (1500) | Won 2-1 | +211382 |
| 5sealed | 111 | Mach, Frankie (1535) | Lost 1-2 | -151367 |
| 6sealed | 208 | Marusek, Josh (1469) | Lost 0-2 | -171350 |
| top | average opponent: 1495record: 2-3 | new rating: 1350 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1456 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 21 | Rausch, Nicholas (1445) | Lost 0-2 | -181438 |
| 3legacy | 145 | Johnson, Alex (1500) | Lost 1-2 | -171421 |
| 4legacy | 229 | Wetzel, Bronson (1480) | Won 2-0 | +191440 |
| 5legacy | 155 | Hunt, Tim R (1656) | Lost 1-2 | -141426 |
| 6legacy | 207 | Page, Harold (1414) | Lost 1-2 | -181408 |
| 7legacy | 162 | Nemeth, Brett (1452) | Lost 0-2 | -181390 |
| 8legacy | 128 | Marsh, Jeremy (1447) | Lost 0-2 | -171373 |
| 9legacy | 101 | Lucarelli, Nick (1428) | Lost 0-2 | -171356 |
| top | average opponent: 1478record: 1-7 | new rating: 1356 | ||
| Grand Prix Oakland 2010 (extended) | starting rating: 1393 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 129 | Skinner, John (1700) | Lost 0-2 | -131380 |
| 3extended | 201 | Boyajian, Rob (1500) | Lost 1-2 | -161364 |
| 4extended | 338 | Cheung, Canon (1499) | Won 2-1 | +211385 |
| 5extended | 218 | Koller, Katherine (1500) | Won 2-1 | +201405 |
| 6extended | 187 | Young, Kelvin (1718) | Won 2-0 | +231428 |
| 7extended | 100 | Sacher, AJ (1756) | Won 2-0 | +241452 |
| 8extended | 92 | Harbison, Peter J (1546) | Won 2-0 | +201472 |
| 9extended | 68 | Pippia, Cristian (1576) | Lost 1-2 | -161456 |
| top | average opponent: 1599record: 5-3 | new rating: 1456 | ||
| Pro Tour Honolulu 2009 (Alara block) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 29 | Nakamura, Shuhei (2028) | Lost 0-2 | -81437 |
| 2block | 178 | McDuffie, Korey (1613) | Won 2-1 | +211458 |
| 3block | 107 | Nystrom, Per (1760) | Lost 0-2 | -131445 |
| 4block | 132 | Flodstrom-Sconce, Christian (1531) | Lost 0-2 | -161429 |
| 5block | 143 | Canonici, Jean Baptiste (1445) | Lost 1-2 | -181411 |
| 6draft | 86 | Baudois, Guillaume (1388) | Lost 0-2 | -181393 |
| top | average opponent: 1628record: 1-5 | new rating: 1393 | ||
| Grand Prix Denver 2008 (Lorwyn block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 111 | Anderson, Dann (1500) | Lost 1-2 | -181482 |
| 2block | 208 | Southard, Dan (1482) | Lost 0-2 | -181464 |
| 3block | 250 | Gearhart, Vincent (1462) | Won 2-1 | +181482 |
| 4block | 270 | Barnes, Joel 2 (1504) | Lost 0-2 | -181464 |
| 5block | 236 | Bustos Jr., Eduardo (1421) | Lost 1-2 | -181446 |
| 6block | 231 | Colwell, Jack (1445) | Lost 0-2 | -181428 |
| 7block | 195 | Nunes, William (1412) | Won 2-0 | +171445 |
| 8block | 162 | Clarke, Thomas (1444) | Won 2-0 | +181463 |
| 9block | 131 | Pitcher, Pink (1461) | Lost 1-2 | -181445 |
| top | average opponent: 1459record: 3-6 | new rating: 1445 | ||