Zung, Martin
Current rating: 1372
| Grand Prix Amsterdam 2017 (AKH standard) | starting rating: 1399 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 121 | Rajchert, Andreas (1505) | Won 2-1 | +201419 |
| 2standard | 105 | Wiesinger, Maximilian (1521) | Lost 0-2 | -161403 |
| 3standard | 441 | Benoit, Vincent (1565) | Lost 0-2 | -151388 |
| 4standard | 523 | Aliyev, Taghi (1480) | Lost 0-2 | -161372 |
| top | average opponent: 1518record: 1-3 | new rating: 1372 | ||
| Grand Prix Stockholm 2016 (EMN limited) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 279 | Christoffersen, Pierre (1500) | Lost 1-2 | -171433 |
| 2sealed | 302 | Hulldin, Erik (1420) | Lost 0-2 | -191414 |
| 3sealed | 512 | Johansson, Emma (1451) | Lost 0-2 | -171397 |
| 4sealed | 569 | Bergstrom, Daniel (1446) | Won 2-0 | +191416 |
| 5sealed | 508 | Helmfrid, Rickard (1497) | Lost 0-2 | -171399 |
| top | average opponent: 1463record: 1-4 | new rating: 1399 | ||
| Grand Prix Stockholm 2014 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 241 | Axelsson, Lukas (1500) | Won 2-1 | +181518 |
| 2standard | 189 | Nurmi, Mikko (1792) | Won 2-1 | +231541 |
| 3standard | 97 | Perttula, Eetu (1526) | Lost 1-2 | -181523 |
| 4standard | 250 | Hiljanen, Dennis (1517) | Lost 0-2 | -191504 |
| 5standard | 311 | Svens, Simon (1498) | Lost 1-2 | -181486 |
| 6standard | 370 | Kajetski, Klaus (1484) | Won 2-1 | +181504 |
| 7standard | 291 | Rosa, Rui (1450) | Lost 1-2 | -191485 |
| 8standard | 258 | Jonsson, Gudmundur (1489) | Lost 0-2 | -181467 |
| 9standard | 229 | Johansson, Joakim (1484) | Lost 0-2 | -171450 |
| top | average opponent: 1527record: 3-6 | new rating: 1450 | ||