Renger, Michael
Current rating: 1392
| Grand Prix Prague 2014 (modern) | starting rating: 1411 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 85 | Mikolas, Dominik (1500) | Lost 0-2 | -161395 |
| 2modern | 456 | Gulyas, Gergely (1633) | Lost 0-2 | -141381 |
| 3modern | 653 | Klavehn, Gordon (1466) | Lost 1-2 | -161365 |
| 5modern | 584 | Esser, Ralph (1465) | Won 2-1 | +201385 |
| 6modern | 465 | Vejdelek, Roman (1551) | Lost 1-2 | -151370 |
| 7modern | 537 | Borckholder, Chris (1425) | Won 2-0 | +191389 |
| 8modern | 411 | Bamberger, Mark (1489) | Lost 0-2 | -161373 |
| 9modern | 380 | Lesch, Andreas (1471) | Won 2-1 | +191392 |
| top | average opponent: 1500record: 3-5 | new rating: 1392 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1049 | Kubota, Yuichi (1500) | Won 2-0 | +191465 |
| 2sealed | 904 | Nakamura, Kouki (1443) | Won 2-1 | +181483 |
| 3sealed | 762 | Yokokura, Takeshi (1571) | Won 2-1 | +191502 |
| 4sealed | 691 | Kodama, Kentaro (1433) | Lost 1-2 | -191483 |
| 5sealed | 804 | Kondou, Masayoshi (1554) | Lost 1-2 | -171466 |
| 6sealed | 842 | Yoshizawa, Toshio (1282) | Lost 1-2 | -211445 |
| 7sealed | 887 | Jo, Bunkun (1522) | Lost 1-2 | -171428 |
| 8sealed | 1028 | Yamada, Katsushi (1482) | Lost 0-2 | -171411 |
| top | average opponent: 1473record: 3-5 | new rating: 1411 | ||
| Grand Prix Prague 2011 (NPH limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 527 | Ecker, Niklas (1449) | Lost 0-2 | -191481 |
| 2sealed | 747 | Vardzik, Tomas (1561) | Lost 1-2 | -161465 |
| 3sealed | 746 | Kozak, Jan (1447) | Lost 0-2 | -191446 |
| top | average opponent: 1486record: 0-3 | new rating: 1446 | ||