Zull, Stephan
Current rating: 1487
Record: 17-19
| Grand Prix Liverpool 2015 (FRF limited) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 429 | Hochel, Christian (1613) | Won 2-1 | +201523 |
| 2sealed | 230 | Westlake, Benjamin (1518) | Lost 0-2 | -181505 |
| 3sealed | 554 | Conti, Francesca (1500) | Lost 0-2 | -181487 |
| top | average opponent: 1544record: 1-2 | new rating: 1487 | ||
| Grand Prix Milan 2014 (modern) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 195 | Kurz, Bastien (1500) | Won 2-0 | +181522 |
| 2modern | 324 | Scava, Antonio (1518) | Won 2-1 | +181540 |
| 3modern | 10 | Ornberg, Frej (1580) | Lost 0-2 | -181522 |
| 4modern | 249 | Palmieri, Nicola (1466) | Lost 0-2 | -191503 |
| 5modern | 554 | Gatti, Andrea (1497) | Won 2-0 | +181521 |
| 6modern | 319 | Gabellini, Cristian (1525) | Lost 0-2 | -181503 |
| top | average opponent: 1514record: 3-3 | new rating: 1503 | ||
| Grand Prix Milan 2014 (JOU limited) | starting rating: 1521 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 99 | Magnusson, Mikael (1658) | Lost 1-2 | -151506 |
| 3sealed | 441 | Giaretta, Andrea (1450) | Won 2-0 | +171523 |
| 4sealed | 356 | Brejcha, Matous (1466) | Lost 0-2 | -191504 |
| top | average opponent: 1525record: 1-2 | new rating: 1504 | ||
| Grand Prix Manchester 2014 (Theros block) | starting rating: 1459 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 166 | Castelli, Davide (1385) | Won 2-0 | +171476 |
| 2block | 57 | Bolger, Lee (1518) | Won 2-0 | +181494 |
| 3block | 98 | Collinet, Patrick (1735) | Lost 0-2 | -131481 |
| 4block | 349 | Mayes, Simon (1500) | Won 2-1 | +181499 |
| 5block | 236 | Fossberg, Marc (1423) | Lost 1-2 | -191480 |
| 6block | 286 | Cullarn, Martin (1522) | Won 2-0 | +181498 |
| 7block | 183 | Fletcher, Geoff (1663) | Won 2-1 | +211519 |
| 8block | 121 | Boon, Michael (1544) | Won 2-1 | +191538 |
| 9block | 97 | Coleman, Ben (1618) | Lost 1-2 | -171521 |
| top | average opponent: 1545record: 6-3 | new rating: 1521 | ||
| Grand Prix Warsaw 2014 (JOU limited) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 6 | Dadel, Przemyslaw (1411) | Won 2-0 | +161495 |
| 2sealed | 173 | Hartmann, Robert (1491) | Lost 0-2 | -181477 |
| 3sealed | 295 | Mares, Jiri (1448) | Lost 0-2 | -181459 |
| 4sealed | 361 | Suberlak, Mateusz (1481) | Won 2-0 | +181477 |
| 5sealed | 315 | Holst, Sebastian (1467) | Lost 0-2 | -181459 |
| top | average opponent: 1460record: 2-3 | new rating: 1459 | ||
| Grand Prix Antwerp 2013 (modern) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 364 | Le Moignic, Maxime (1481) | Won 2-1 | +191484 |
| 2modern | 98 | Przybylo, Dariusz (1593) | Lost 1-2 | -161468 |
| 3modern | 603 | Janssen, Gregory (1500) | Won 2-0 | +181486 |
| 4modern | 471 | Gollor, Marcus (1504) | Won 2-1 | +191505 |
| 5modern | 350 | Sutor, Emanuel (1821) | Lost 1-2 | -131492 |
| 6modern | 454 | Nielsen, Simon (1731) | Lost 1-2 | -131479 |
| top | average opponent: 1605record: 3-3 | new rating: 1479 | ||
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 195 | Sedivy, Jan (1550) | Won 2-0 | +191519 |
| 2sealed | 66 | Kerhat, Martin (1518) | Lost 1-2 | -181501 |
| 3sealed | 477 | Sulc, David (1501) | Lost 1-2 | -181483 |
| 4sealed | 541 | Horak, Lukas (1514) | Lost 0-2 | -181465 |
| top | average opponent: 1521record: 1-3 | new rating: 1465 | ||