Leidorf, Jan
Current rating: 1455
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1459 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 26 | Dufour, Chris (1567) | Won 2-0 | +201479 |
| 2sealed | 196 | Cooper, Chris (1490) | Won 2-0 | +191498 |
| 3sealed | 105 | Orlowski, Kamil (1635) | Lost 1-2 | -161482 |
| 4sealed | 303 | Hirschler, Tim (1509) | Won 2-0 | +191501 |
| 5sealed | 222 | Born, Martijn (1542) | Lost 0-2 | -181483 |
| 6sealed | 363 | Van Der Heide, Stijn Wieger (1516) | Lost 0-2 | -171466 |
| 7sealed | 316 | Terroy, Cyril (1870) | Lost 0-2 | -111455 |
| top | average opponent: 1590record: 3-4 | new rating: 1455 | ||
| Grand Prix Strasbourg 2014 (KTK limited) | starting rating: 1476 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 886 | Creelle, Christophe (1463) | Won 2-0 | +181494 |
| 2sealed | 878 | van der Linden, Mark (1500) | Won 2-1 | +181512 |
| 3sealed | 852 | Junk, Fabian (1489) | Lost 1-2 | -181494 |
| 4sealed | 994 | Levitt, Olivier (1453) | Lost 0-2 | -191475 |
| 5sealed | 1033 | Dopking, Lars (1601) | Lost 0-2 | -161459 |
| top | average opponent: 1501record: 2-3 | new rating: 1459 | ||
| Grand Prix Vienna 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 98 | Wolf, Stefan (1611) | Won 2-1 | +201520 |
| 2sealed | 101 | Havlik, Michal (1713) | Lost 0-2 | -151505 |
| 3sealed | 433 | Matull, Milan (1694) | Lost 0-2 | -141491 |
| 4sealed | 412 | Eckstein, Matthias (1433) | Won 2-1 | +171508 |
| 5sealed | 288 | Hacker, Christoph (1478) | Lost 1-2 | -191489 |
| 6sealed | 389 | Plisov, Oleg (1777) | Lost 1-2 | -131476 |
| top | average opponent: 1617record: 2-4 | new rating: 1476 | ||