Rosenberger, Jan
Current rating: 1358
Record: 3-11
| Grand Prix Brussels 2018 (M19 standard) | starting rating: 1424 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 238 | Guglielmini, Enrico (1656) | Lost 0-2 | -141410 |
| 2standard | 310 | Vornhusen, Gunnar (1476) | Lost 1-2 | -161394 |
| 3standard | 485 | Vermij, Michael (1257) | Won 2-1 | +151409 |
| 4standard | 453 | Csaszar, Zoltan (1484) | Lost 0-2 | -171392 |
| 5standard | 496 | Polak, Maxence (1378) | Lost 0-2 | -181374 |
| 6standard | 468 | Theys, Koen (1314) | Lost 0-2 | -191355 |
| 7standard | 429 | Verheyen, Alexis (1429) | Lost 0-2 | -171338 |
| 8standard | 390 | Bougues, Yorick (1409) | Won 2-1 | +201358 |
| average opponent: 1425record: 2-6 | new rating: 1358 | |||
| Grand Prix Lyon 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 309 | Dubois, Thomas (1525) | Lost 1-2 | -181482 |
| 2modern | 683 | Bourdy, Wilfried (1333) | Lost 1-2 | -201462 |
| 3modern | 991 | Muller, Frank (1467) | Lost 0-2 | -181444 |
| 4modern | 1000 | Vassault-Derouin, Seymour (1465) | Won 2-1 | +181462 |
| 5modern | 827 | Knapper, Stefan (1430) | Lost 0-2 | -181444 |
| 6modern | 839 | Schwan, Yohann (1363) | Lost 0-2 | -201424 |
| average opponent: 1431record: 1-5 | new rating: 1424 | |||