Vrijhof, Jonathan
Current rating: 1474
Record: 14-18
| Grand Prix Copenhagen 2019 (MH1 limited) | starting rating: 1399 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 233 | Sikora, Mateusz (1768) | Won 2-1 | +251424 |
| 2sealed | 66 | Borresen, Lars (1446) | Won 2-0 | +181442 |
| 3sealed | 152 | Pettersson, Tobias (1685) | Won 2-1 | +221464 |
| 4sealed | 27 | Krebs, Maximilian (1768) | Lost 1-2 | -121452 |
| 5sealed | 269 | Norgaard, Lasse (1796) | Won 2-1 | +241476 |
| 6sealed | 157 | Kukowski, Paul (1511) | Won 2-1 | +191495 |
| 7sealed | 33 | Lantto, Magnus (2013) | Lost 0-2 | -101485 |
| 8sealed | 179 | Shashov, Alexey (1875) | Lost 1-2 | -111474 |
| top | average opponent: 1733record: 5-3 | new rating: 1474 | ||
| Grand Prix Bochum 2010 (SOM limited) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 566 | van Binsbergen, Adri (1467) | Lost 0-2 | -181413 |
| 2sealed | 855 | Grimberg, Bastian (1482) | Won 2-0 | +201433 |
| 3sealed | 727 | van Houts, Kevin (1518) | Lost 1-2 | -171416 |
| 4sealed | 836 | Klinger, Uwe (1482) | Lost 0-2 | -171399 |
| top | average opponent: 1487record: 1-3 | new rating: 1399 | ||
| Grand Prix Hasselt 2006 (RAV limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 24 | vanden Bossche, David (1566) | Lost 0-2 | -161430 |
| 2sealed | 222 | Durand, Damien (1414) | Won 2-1 | +181448 |
| 3sealed | 116 | Salden, Koen (1501) | Lost 0-2 | -171431 |
| top | average opponent: 1494record: 1-2 | new rating: 1431 | ||
| Grand Prix Nottingham 2005 (RAV limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 143 | Wray, Paul (1500) | Won 2-1 | +191500 |
| 2sealed | 111 | Mojtahedy, Babak (1518) | Won 2-0 | +181518 |
| 3sealed | 70 | Lailey, Mark (1536) | Lost 0-2 | -181500 |
| 4sealed | 138 | Tweedale, Darryl (1481) | Lost 0-2 | -181482 |
| 5sealed | 155 | Clarys, Steve (1475) | Lost 0-2 | -181464 |
| 6sealed | 177 | Gardner, Daniel J [ENG] (1482) | Won 2-0 | +181482 |
| 7sealed | 126 | Nes Mygiand, Aksel (1499) | Lost 1-2 | -171465 |
| 8sealed | 124 | Johnson, Bill [ENG] (1417) | Lost 0-2 | -191446 |
| top | average opponent: 1489record: 3-5 | new rating: 1446 | ||
| Grand Prix Eindhoven 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 212 | Kneip, Jean-Paul (1500) | Won 2-1 | +181518 |
| 2extended | 51 | Leroy, Simon (1518) | Won 2-0 | +181536 |
| 3extended | 44 | Sondag, Guido (1537) | Lost 1-2 | -181518 |
| 4extended | 198 | Faber, Enne (1521) | Won 2-0 | +181536 |
| 5extended | 86 | Brozek, Jan (1527) | Lost 0-2 | -181518 |
| 6extended | 262 | Esposito, Marco (1531) | Won 2-1 | +181536 |
| 7extended | 116 | Jensen, Martin (1509) | Lost 1-2 | -181518 |
| 8extended | 154 | Picciafuochi, Riccardo (1501) | Lost 0-2 | -191499 |
| 9extended | 161 | Michailidis, Nick (1503) | Lost 0-2 | -181481 |
| top | average opponent: 1516record: 4-5 | new rating: 1481 | ||