Trommer, Jens
Current rating: 1435
Record: 12-17-2
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 432 | Paulik, Martin (1500) | Lost 1-2 | -181449 |
| 2sealed | 1263 | Dreyer, Leonard (1482) | Draw 1-1 | +11450 |
| 3sealed | 1040 | Kuchkouski, Aliaksei (1486) | Won 2-1 | +191469 |
| 4sealed | 807 | Wardenier, Niels (1488) | Won 2-1 | +181487 |
| 5sealed | 541 | Jaccard, Yann-Guillaume (1645) | Lost 0-2 | -151472 |
| 6sealed | 713 | Bobak, Andrzej (1395) | Lost 0-2 | -201452 |
| 7sealed | 682 | Lange, Philipp (1475) | Lost 0-2 | -171435 |
| top | average opponent: 1496record: 2-4-1 | new rating: 1435 | ||
| Grand Prix Prague 2018 (modern) | starting rating: 1453 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 452 | Bruegemann, Dirk (1648) | Won 2-1 | +221475 |
| 2modern | 338 | Kowalewski, Lukasz (1520) | Lost 1-2 | -171458 |
| 3modern | 422 | Larsson, Michael (1225) | Won 2-0 | +141472 |
| 4modern | 481 | Korosi, Soma (1680) | Won 2-1 | +211493 |
| 5modern | 304 | Egorov, Arseniy (1843) | Lost 1-2 | -111482 |
| 6modern | 529 | Ducenko, Lev (1594) | Lost 0-2 | -161466 |
| 7modern | 569 | Kulla, Mathias (1498) | Won 2-1 | +181484 |
| 8modern | 373 | Mienes, Bertold (1522) | Lost 1-2 | -171467 |
| top | average opponent: 1566record: 4-4 | new rating: 1467 | ||
| Grand Prix Prague 2017 (AER limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 74 | Guldan, Michal (1519) | Lost 1-2 | -171466 |
| 2sealed | 730 | Kaminski, Alexander (1483) | Draw 1-1 | 01466 |
| 3sealed | 821 | Mohren, Christian (1588) | Won 2-1 | +201486 |
| 4sealed | 666 | Baumert, Martin (1801) | Won 2-1 | +241510 |
| 5sealed | 455 | Jones, David [CZE] (1424) | Lost 1-2 | -201490 |
| 6sealed | 614 | Milevski, Miki (1428) | Lost 1-2 | -191471 |
| 7sealed | 683 | Dujic, Goran (1482) | Lost 1-2 | -181453 |
| top | average opponent: 1532record: 2-4-1 | new rating: 1453 | ||
| Grand Prix Prague 2016 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 123 | Tholance, Nicolas (1726) | Lost 1-2 | -141486 |
| 2legacy | 516 | Holzler, Franz (1521) | Won 2-1 | +191505 |
| 3legacy | 585 | Vavra, Nikola (1603) | Lost 1-2 | -171488 |
| 4legacy | 185 | Harrison, Anne (1414) | Won 2-0 | +171505 |
| 5legacy | 408 | Szymanski, Marek (1435) | Lost 1-2 | -191486 |
| 6legacy | 555 | Nizon, Jerome (1496) | Won 2-0 | +181504 |
| 7legacy | 380 | Odvarka, Jan (1448) | Won 2-0 | +171521 |
| 8legacy | 396 | Karvinen, Leo (1522) | Lost 0-2 | -181503 |
| 9legacy | 376 | Antipov, Denis (1405) | Lost 1-2 | -201483 |
| top | average opponent: 1508record: 4-5 | new rating: 1483 | ||