Schaffer, Dirk
Current rating: 1602
Record: 20-15
| Grand Prix Utrecht 2019 (ELD limited) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 347 | Wolff, Tobias (1656) | Lost 1-2 | -161553 |
| 2sealed | 618 | Flynn, Charles (1427) | Won 2-0 | +151568 |
| 3sealed | 551 | Frischinger, Thomas (1493) | Won 2-0 | +171585 |
| 4sealed | 448 | Safai, Soheil (1670) | Won 2-1 | +191604 |
| 5sealed | 201 | Janssen, Guido (1551) | Lost 1-2 | -191585 |
| 6sealed | 226 | Holtmann, Niklas (1659) | Lost 0-2 | -161569 |
| 7sealed | 366 | Bodach, Lars (1503) | Won 2-1 | +171586 |
| 8sealed | 277 | Van Der Steen, Niels (1506) | Won 2-1 | +161602 |
| top | average opponent: 1558record: 5-3 | new rating: 1602 | ||
| Grand Prix Strasbourg 2019 (RNA limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 183 | Ainali, Jan (1412) | Won 2-0 | +161568 |
| 2sealed | 223 | Laperrouze, Arnaud (1501) | Won 2-0 | +171585 |
| 3sealed | 22 | Gonzalez Munzon, Mario (1470) | Won 2-0 | +151600 |
| 4sealed | 1 | Cointe, Antoine (1694) | Lost 0-2 | -161584 |
| 5sealed | 317 | Urff, Alexander (1738) | Lost 0-2 | -151569 |
| top | average opponent: 1563record: 3-2 | new rating: 1569 | ||
| Grand Prix Turin 2018 (M19 limited) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 217 | Maij, Rosario (1834) | Lost 0-2 | -131495 |
| 2sealed | 272 | Monro, Iain (1488) | Lost 1-2 | -181477 |
| 3sealed | 496 | Schmalfeld, Thomas (1618) | Won 2-1 | +211498 |
| 4sealed | 369 | Longo, Mattia (1457) | Won 2-0 | +171515 |
| 5sealed | 396 | Cerra, Daniele (1503) | Won 2-0 | +181533 |
| 6sealed | 258 | Temple, Hugo (1519) | Lost 0-2 | -191514 |
| 7sealed | 270 | Arod, Christophe (1461) | Won 2-0 | +181532 |
| 8sealed | 174 | Chernobryvchenko, Mikhail (1689) | Won 2-1 | +201552 |
| top | average opponent: 1571record: 5-3 | new rating: 1552 | ||
| Grand Prix Metz 2017 (HOU limited) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 65 | Otto, Rachel (1427) | Won 2-0 | +161538 |
| 2sealed | 193 | Yang, Xiaoliang (1653) | Won 2-1 | +201558 |
| 3sealed | 296 | Pruijt, Daan (1969) | Lost 0-2 | -111547 |
| 4sealed | 333 | Chauvel, Laurent (1434) | Lost 0-2 | -201527 |
| 5sealed | 515 | Camarasa Ibanez, Juan Alejandro (1439) | Lost 0-2 | -191508 |
| top | average opponent: 1585record: 2-3 | new rating: 1508 | ||
| Grand Prix London 2016 (KLD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 856 | Poeiras, Fabio (1551) | Won 2-0 | +191519 |
| 2sealed | 548 | Lawlor, Patrick (1535) | Lost 0-2 | -181501 |
| 3sealed | 957 | Lorentzon, Bjorn (1504) | Lost 1-2 | -181483 |
| 4sealed | 1024 | Stocker, Andreas (1523) | Won 2-1 | +191502 |
| 5sealed | 581 | Harper, Andie (1503) | Won 2-0 | +181520 |
| 6sealed | 357 | Valkeneers, Tom (1623) | Lost 1-2 | -161504 |
| 7sealed | 620 | Lansdale, Tim (1548) | Won 2-1 | +191523 |
| 8sealed | 530 | Siu, Kenneth (1519) | Won 2-1 | +181541 |
| 9sealed | 372 | Lepisto, Martti (1488) | Lost 1-2 | -191522 |
| top | average opponent: 1533record: 5-4 | new rating: 1522 | ||