Herkenhoff, Brett
Current rating: 1520
Record: 15-12-1 (GP) / 3-10 (professional)
| Grand Prix Oakland 2004 (DST limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 36 | Starleaf, Derek (1699) | Lost 0-2 | -141453 |
| 4sealed | 103 | Dykes, James (1503) | Won 2-0 | +191472 |
| 5sealed | 89 | Napoli, Phillip (1558) | Won 2-0 | +191491 |
| 6sealed | 34 | Coker, Erik (1553) | Won 2-0 | +191510 |
| 7sealed | 29 | Boyes, Richard (1569) | Won 2-0 | +201530 |
| 8sealed | 23 | Stark, Ben S (2007) | Lost 0-2 | -101520 |
| top | average opponent: 1648record: 4-2 | new rating: 1520 | ||
| Grand Prix Anaheim 2003 (extended) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 57 | Cameron, Christopher (1500) | Lost 0-2 | -191543 |
| 2extended | 72 | Kashefinejad, Farish (1482) | Lost 0-2 | -191524 |
| 3extended | 108 | Mardis, Robert (1464) | Lost 0-2 | -201504 |
| 4extended | 128 | Paxton, Corey (1446) | Lost 0-2 | -191485 |
| 5extended | 117 | Cheng, Jen (1446) | Lost 0-2 | -181467 |
| top | average opponent: 1468record: 0-5 | new rating: 1467 | ||
| Pro Tour Chicago 2003 (ONS rochester) | starting rating: 1560 | |||
| round | table | opponent (rating) | result | Δrating |
| 1rochester | 132 | Jorstedt, Mattias (1886) | Won 2-1 | +241584 |
| 2rochester | 69 | Berthelsen, Nis (1575) | Lost 1-2 | -181566 |
| 3rochester | 62 | Toikka, Seppo (1732) | Won 2-0 | +211587 |
| 4rochester | 42 | Jensen, William (1889) | Lost 0-2 | -131574 |
| 5rochester | 110 | Hall, Andy (1527) | Lost 1-2 | -191555 |
| 6rochester | 121 | Meinecke, Holger (1794) | Won 2-0 | +231578 |
| 7rochester | 8 | Linde, Matt (1701) | Lost 1-2 | -161562 |
| top | average opponent: 1729record: 3-4 | new rating: 1562 | ||
| Grand Prix Los Angeles 2002 (ONS rochester) | starting rating: 1413 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 39 | Cade, Chris (1586) | Won 2-0 | +211434 |
| 3sealed | 61 | Takeoka, Ryan (1536) | Lost 1-2 | -161418 |
| 4sealed | 99 | Tarr, Alan (1471) | Draw 1-1 | +11419 |
| 5sealed | 112 | Russell, Kenny (1518) | Won 2-0 | +201439 |
| 6sealed | 65 | Barkho, Sammy (1597) | Won 2-1 | +211460 |
| 7sealed | 43 | Jeudon, Florent (1852) | Won 2-1 | +241484 |
| 8sealed | 29 | Harris, Dustin (1562) | Won 2-1 | +201504 |
| 9rochester | 29 | Cunningham, Jeff (2019) | Lost 0-2 | -101494 |
| 10rochester | 26 | Price, David (1636) | Lost 1-2 | -151479 |
| 11rochester | 11 | Ward, Harry (1564) | Won 2-1 | +201499 |
| 12rochester | 30 | Miller, Patrick (1498) | Won 2-0 | +181517 |
| 13rochester | 30 | Weber, Joe (1606) | Won 2-0 | +191536 |
| 14rochester | 27 | Davis, Brian (1884) | Won 2-0 | +241560 |
| top | average opponent: 1641record: 9-3-1 | new rating: 1560 | ||
| Grand Prix Cleveland 2002 (Odyssey block) | starting rating: 1406 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 97 | Zacharyasz, Anthony (1500) | Won 2-0 | +201426 |
| 2block | 8 | Wright, Randy (1615) | Lost 0-2 | -151411 |
| 3block | 173 | McCormick, Carl (1500) | Won 2-1 | +201431 |
| 4block | 114 | Leather, Christopher (1447) | Lost 1-2 | -181413 |
| top | average opponent: 1516record: 2-2 | new rating: 1413 | ||
| Pro Tour Nice 2002 (TOR draft) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 33 | Ross, Edward (1645) | Lost 1-2 | -151485 |
| 2draft | 134 | Dato, Andrea (1580) | Lost 1-2 | -171468 |
| 3draft | 147 | Roussel, Johann (1592) | Lost 0-2 | -151453 |
| 4draft | 123 | Shvartsman, Alex (1841) | Lost 1-2 | -121441 |
| 5draft | 114 | Wang, Sean (1423) | Lost 1-2 | -181423 |
| 6draft | 101 | Egli, Walter (1470) | Lost 1-2 | -171406 |
| top | average opponent: 1592record: 0-6 | new rating: 1406 | ||