Koch, Dennis
Current rating: 1430
| Grand Prix Warsaw 2016 (KLD standard) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 215 | Pulkiewicz, Kamil (1500) | Won 2-1 | +191499 |
| 2standard | 185 | Marciniak, Jaroslaw (1592) | Lost 0-2 | -171482 |
| 3standard | 377 | Gorski, Bartlomiej (1501) | Lost 1-2 | -171465 |
| 4standard | 411 | Hesselman, Vidar (1519) | Lost 0-2 | -171448 |
| 5standard | 476 | Zamfir, Tudor-Ioan (1463) | Lost 1-2 | -181430 |
| top | average opponent: 1515record: 1-4 | new rating: 1430 | ||
| Grand Prix Brussels 2015 (BFZ standard) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 43 | Sorribas, Xavier (1513) | Won 0-0 | +191465 |
| 2standard | 426 | Schraut, Andreas (1733) | Lost 0-0 | -131452 |
| 3standard | 554 | Duparcq, Guy (1659) | Lost 1-2 | -151437 |
| 4standard | 863 | Bouters, Timon (1463) | Won 2-0 | +191456 |
| 5standard | 585 | Leren, Havard (1541) | Won 2-1 | +191475 |
| 6standard | 374 | Pletinckx, Kenneth (1444) | Won 2-1 | +181493 |
| 7standard | 315 | Diaz, Alfonso (1815) | Lost 1-2 | -131480 |
| top | average opponent: 1595record: 4-3 | new rating: 1480 | ||
| Grand Prix Krakow 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 244 | Nguyen, Viet Anh (1538) | Lost 0-2 | -171483 |
| 2standard | 318 | Jagiello, Michal (1483) | Lost 0-2 | -181465 |
| 3standard | 525 | Konopko, Lukasz (1464) | Won 2-0 | +181483 |
| 4standard | 442 | Coors, Raphael (1387) | Won 2-0 | +161499 |
| 5standard | 335 | Knapova, Dominika (1456) | Lost 1-2 | -191480 |
| 6standard | 408 | Kotowicz, Lukasz (1592) | Lost 0-2 | -161464 |
| 7standard | 380 | De Brabander, Michael (1428) | Lost 0-2 | -181446 |
| top | average opponent: 1478record: 2-5 | new rating: 1446 | ||