Koch, Johannes
Current rating: 1472
| Grand Prix Vienna 2013 (THS standard) | starting rating: 1485 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 59 | Boucek, Jaroslav (1809) | Lost 0-2 | -131472 |
| 4standard | 79 | Hardstam, Johan (1445) | Won 2-1 | +181490 |
| 5standard | 283 | Glisic, Bojan (1508) | Lost 0-2 | -181472 |
| top | average opponent: 1587record: 1-2 | new rating: 1472 | ||
| Grand Prix Bochum 2012 (RTR standard) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 570 | Matzig, Lev (1523) | Lost 1-2 | -181487 |
| 2standard | 777 | Koelewijn, Roy (1486) | Lost 1-2 | -181469 |
| 3standard | 848 | Hamann, Andreas (1426) | Won 2-0 | +171486 |
| 4standard | 814 | Soudan, Julian (1484) | Won 2-1 | +181504 |
| 5standard | 723 | Ellwanger, Antje (1417) | Lost 0-2 | -191485 |
| top | average opponent: 1467record: 2-3 | new rating: 1485 | ||
| Grand Prix Vienna 2001 (ODY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 7 | Horecki, Tomek Goral (1511) | Won 2-0 | +181518 |
| 2sealed | 160 | Lev, Andreas (1500) | Won 2-1 | +181536 |
| 3sealed | 86 | Domagalski, Tomasz (1520) | Won 2-1 | +181554 |
| 4sealed | 5 | Brodzak, Jan (1608) | Lost 0-2 | -171537 |
| 5sealed | 93 | Paselli, Andrea (1605) | Lost 1-2 | -171520 |
| 6sealed | 106 | Eder, Wolfgang (1695) | Lost 0-2 | -151505 |
| 7sealed | 138 | Ohlrogge, Christoph (1499) | Lost 1-2 | -181487 |
| 8sealed | 139 | Loewenbrueck, Joachim (1483) | Won 2-0 | +181505 |
| top | average opponent: 1553record: 4-4 | new rating: 1505 | ||