Kottmann, David
Current rating: 1522
Record: 7-6-1
| Grand Prix Utrecht 2019 (ELD limited) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 46 | Westermeier, Dominic (1501) | Lost 1-2 | -191525 |
| 4sealed | 351 | Mocydlarz, Tomasz (1275) | Lost 1-2 | -231502 |
| 5sealed | 372 | Jansen, Sepp (1569) | Lost 1-2 | -161486 |
| 6sealed | 466 | Ainali, Jan (1361) | Draw 1-1 | -31483 |
| 7sealed | 389 | Woodrow, Ruth (1457) | Won 2-1 | +181501 |
| 8sealed | 300 | Bukovskis, Vitalijs (1652) | Won 2-0 | +211522 |
| average opponent: 1469record: 2-3-1 | new rating: 1522 | |||
| Grand Prix Lille 2018 (GRN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 214 | Klein, Simon (1444) | Won 2-0 | +171517 |
| 2standard | 31 | Bergami, Francesco (1517) | Won 2-0 | +181535 |
| 3standard | 96 | Riehm, Tobias (1368) | Won 2-1 | +151550 |
| 4standard | 166 | Zavadzkis, Domantas (1886) | Lost 1-2 | -121538 |
| 5standard | 249 | Guarneri, Harold (1532) | Lost 0-2 | -181520 |
| 6standard | 316 | van Herwaarden, Sander (1803) | Lost 1-2 | -131507 |
| 7standard | 341 | Vogel, Sylvain (1503) | Won 2-0 | +181525 |
| 8standard | 253 | Van Doesburg, Steven (1573) | Won 2-1 | +191544 |
| average opponent: 1578record: 5-3 | new rating: 1544 | |||