Van Rooij, Jan
Current rating: 1638
| Grand Prix Brussels 2018 (M19 standard) | starting rating: 1649 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 87 | Dijt, Sven (1649) | Lost 1-2 | -181631 |
| 3standard | 439 | Collin, Cedric (1449) | Lost 1-2 | -221609 |
| 4standard | 493 | Derous, Bjorn (1464) | Won 2-0 | +161625 |
| 5standard | 402 | Kolle, Niklas (1415) | Won 2-0 | +141639 |
| 6standard | 234 | Lukosevicius, Marijus Jonas (1525) | Won 2-0 | +161655 |
| 7standard | 246 | Stok, Alex (1731) | Lost 0-2 | -171638 |
| top | average opponent: 1539record: 3-3 | new rating: 1638 | ||
| Grand Prix Amsterdam 2017 (AKH standard) | starting rating: 1651 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 237 | Colin, Antoine (1506) | Won 2-0 | +151666 |
| 3standard | 68 | Santos, Tito (1578) | Won 2-1 | +171683 |
| 4standard | 127 | Danninger, Manuel (1813) | Lost 0-2 | -161667 |
| 5standard | 228 | Abt, Robin (1531) | Lost 1-2 | -201647 |
| 6standard | 313 | Messow, Philip (1779) | Won 2-1 | +201667 |
| 7standard | 241 | Pistorius, Raphael (1642) | Lost 1-2 | -181649 |
| top | average opponent: 1641record: 3-3 | new rating: 1649 | ||
| Grand Prix Utrecht 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 147 | Kohnstamm, David (1430) | Won 2-1 | +171517 |
| 2standard | 222 | Durand, Victor (1702) | Lost 1-2 | -151502 |
| 3standard | 367 | Heinemann, Stefan (1558) | Won 2-1 | +191521 |
| 4standard | 420 | Muller, Lukas (1529) | Won 2-1 | +181539 |
| 5standard | 162 | Bodily, Samuel (1648) | Won 2-0 | +201559 |
| 6standard | 181 | Snazle, Louis (1536) | Won 2-0 | +181577 |
| 7standard | 89 | Muller, Lucas (1538) | Lost 0-2 | -191558 |
| 8standard | 137 | Guglielmini, Enrico (1647) | Won 2-1 | +201578 |
| 9standard | 86 | Brancewicz, Michal (1701) | Won 2-1 | +201598 |
| 10standard | 70 | Laguerre, Mathieu (1746) | Won 2-1 | +211619 |
| 11standard | 35 | Dominguez, Javier (1975) | Won 2-1 | +241643 |
| 12standard | 8 | Hessens, Oliver (1660) | Lost 1-2 | -181625 |
| 13standard | 43 | Kenbeek, Wout (1751) | Won 2-1 | +201645 |
| 14standard | 29 | Dagen, Pierre (2053) | Won 2-1 | +251670 |
| 15standard | 22 | Allard, Ragnar (1584) | Lost 1-2 | -191651 |
| top | average opponent: 1670record: 11-4 | new rating: 1651 | ||