Kuether, Jan
Current rating: 1462
Record: 5-7
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 552 | Urnikas, Ignas (1520) | Won 2-1 | +191497 |
| 2sealed | 654 | Maly, Karel (1481) | Lost 1-2 | -181479 |
| 3sealed | 667 | Korkuc, Henrik (1499) | Won 2-0 | +181497 |
| 4sealed | 612 | Englund, Simon E (1625) | Lost 0-2 | -161481 |
| 5sealed | 722 | Rolle, Christian (1401) | Lost 1-2 | -191462 |
| average opponent: 1505record: 2-3 | new rating: 1462 | |||
| Grand Prix Hanover 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 429 | Lange, Philipp (1500) | Lost 1-2 | -181482 |
| 2extended | 544 | Panum, Thomas K (1475) | Won 2-0 | +181500 |
| 3extended | 542 | van Eijk, Sander (1433) | Won 2-1 | +171517 |
| 4extended | 512 | Nielsen, Kristian (1525) | Lost 1-2 | -181499 |
| 5extended | 567 | Holmstedt, Rolf (1361) | Won 2-1 | +151514 |
| 6extended | 481 | Godlewski, Jaroslaw (1522) | Lost 0-2 | -181496 |
| 7extended | 535 | Filler, Michael (1480) | Lost 0-2 | -181478 |
| average opponent: 1471record: 3-4 | new rating: 1478 | |||