Krohn, Thomas
Current rating: 1470
Record: 6-8
| Grand Prix Amsterdam 2011 (legacy) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 808 | Serbruyns, Joachim (1477) | Won 2-0 | +181502 |
| 2legacy | 630 | Brinkers, Bauke (1518) | Lost 1-2 | -181484 |
| 3legacy | 905 | Fedeli, Lorenzo (1533) | Won 2-1 | +191503 |
| 4legacy | 870 | Von Muller, Moritz (1560) | Won 2-1 | +191522 |
| 5legacy | 768 | van Rijn, Frank (1541) | Lost 0-2 | -181504 |
| 6legacy | 789 | Dosimont, Amand (1597) | Lost 0-2 | -161488 |
| 7legacy | 847 | Pfitzner, Lutz (1495) | Lost 0-2 | -181470 |
| average opponent: 1532record: 3-4 | new rating: 1470 | |||
| Grand Prix Hanover 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 456 | Steigerwald, Jorn (1500) | Won 1-0 | +181518 |
| 2extended | 463 | Chomen, Detlef (1519) | Won 2-0 | +181536 |
| 3extended | 473 | Kucera, Vladimir (1467) | Won 2-0 | +171553 |
| 4extended | 449 | Fortier, Remi (1756) | Lost 1-2 | -151538 |
| 5extended | 437 | Dorr, Jens (1555) | Lost 0-2 | -171521 |
| 6extended | 505 | Leigh, Simon (1483) | Lost 0-2 | -191502 |
| 7extended | 532 | Mede, Martin (1482) | Lost 0-2 | -181484 |
| average opponent: 1537record: 3-4 | new rating: 1484 | |||