Brouwer, Jaap
Current rating: 1408
| Grand Prix Utrecht 2014 (M15 standard) | starting rating: 1413 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 379 | Bestak, Jiri (1497) | Won 2-0 | +191432 |
| 2standard | 33 | Ferber, Mario (1503) | Lost 1-2 | -161416 |
| 3standard | 390 | Duval, Simon (1253) | Won 2-1 | +151431 |
| 4standard | 387 | Pieters, Yorick (1667) | Won 2-1 | +221453 |
| 5standard | 133 | Paterok, Daniel (1558) | Lost 1-2 | -161437 |
| 6standard | 310 | Kleerekooper, Leonard (1547) | Lost 0-1 | -161421 |
| 7standard | 386 | Noorlander, Niels (1730) | Lost 1-2 | -131408 |
| top | average opponent: 1536record: 3-4 | new rating: 1408 | ||
| Grand Prix Amsterdam 2011 (legacy) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 285 | Blieck, Benny (1439) | Lost 0-2 | -191464 |
| 2legacy | 340 | Breves, Gerrit (1483) | Lost 1-2 | -171447 |
| 3legacy | 356 | Van Dalen, Nico (1468) | Won 2-0 | +181465 |
| 4legacy | 389 | Vrijhof, Jan (1450) | Draw 1-1 | 01465 |
| 5legacy | 356 | Van Zutphen, Timothy (1482) | Lost 0-2 | -181447 |
| 6legacy | 349 | Rocha, Francisco (1509) | Lost 0-2 | -171430 |
| 7legacy | 310 | Rospir, Edu (1454) | Lost 1-2 | -171413 |
| top | average opponent: 1469record: 1-5-1 | new rating: 1413 | ||
| Grand Prix Dortmund 2006 (GPT limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 95 | Wechsel, Alexander (1505) | Won 2-0 | +181518 |
| 2sealed | 113 | Reissenberger, Marcus (1382) | Lost 0-2 | -201498 |
| 3sealed | 144 | Jensen, Martin (1523) | Won 2-1 | +181516 |
| 4sealed | 111 | Radloff, Tobias (1643) | Lost 0-2 | -161500 |
| 5sealed | 122 | Havlik, Michal (1566) | Lost 0-2 | -161484 |
| 6sealed | 166 | Menzel, Stefan (1484) | Won 2-1 | +181502 |
| 7sealed | 129 | Ohlhof, Frank (1481) | Lost 1-2 | -191483 |
| top | average opponent: 1512record: 3-4 | new rating: 1483 | ||