Gundlach, Martin
Current rating: 1499
Record: 8-8
| Grand Prix Brussels 2020 (pioneer) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 286 | Van Der Veen, Joschua (1428) | Lost 1-2 | -191480 |
| 2pioneer | 508 | Papadakis, Angelos (1493) | Lost 1-2 | -181462 |
| 3pioneer | 810 | Chuvychin, Yevhen (1383) | Won 2-0 | +171479 |
| 4pioneer | 683 | Pablos, Cristina Ruiz (1479) | Won 2-0 | +181497 |
| 5pioneer | 180 | Shah, Mubashar (1587) | Lost 1-2 | -171480 |
| 6pioneer | 569 | Vermij, Michael (1305) | Won 2-1 | +151495 |
| 7pioneer | 419 | Verkooren, Renzo (1552) | Lost 1-2 | -171478 |
| 8pioneer | 375 | Thompson, Richard [IRL] (1665) | Won 2-0 | +211499 |
| average opponent: 1486record: 4-4 | new rating: 1499 | |||
| Grand Prix Prague 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 268 | Hatesur, Sven (1519) | Lost 1-2 | -181482 |
| 2modern | 561 | Loic, David (1482) | Won 2-0 | +181500 |
| 3modern | 585 | Drummond, Jamie (1565) | Lost 0-2 | -161484 |
| 4modern | 832 | Kubis, Jan (1476) | Lost 1-2 | -191465 |
| 5modern | 895 | Bohm, Patrick (1318) | Lost 1-2 | -201445 |
| 6modern | 814 | Matejczuk, Piotr (1453) | Won 2-1 | +181463 |
| 7modern | 694 | Geldon, Krystian (1475) | Won 2-0 | +181481 |
| 8modern | 494 | Tisar, Marek (1479) | Won 2-1 | +181499 |
| average opponent: 1471record: 4-4 | new rating: 1499 | |||