Zimmer, Michael
Current rating: 1479
Record: 6-7
| Grand Prix Brussels 2020 (pioneer) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 75 | Aboubacar, Salim (1558) | Lost 1-2 | -171465 |
| 2pioneer | 40 | Thorvaldsen, Kine (1323) | Lost 0-2 | -201445 |
| 3pioneer | 733 | Malzahn, Daniel (1388) | Won 2-0 | +171462 |
| 4pioneer | 668 | Luc-Bastien, Claude (1465) | Won 2-0 | +181480 |
| 5pioneer | 597 | Wilder, Harriet (1506) | Won 2-0 | +181498 |
| 6pioneer | 302 | Komsta, Franek (1444) | Lost 1-2 | -191479 |
| average opponent: 1447record: 3-3 | new rating: 1479 | |||
| Grand Prix Toronto 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 475 | Perera, Aaron (1500) | Won 2-0 | +181518 |
| 2standard | 321 | Wong, Sam (1519) | Won 2-1 | +181536 |
| 3standard | 79 | Peddle, Ken (1541) | Won 2-1 | +181554 |
| 4standard | 75 | Reiber, Zachary (1605) | Lost 0-2 | -171537 |
| 5standard | 177 | Hardie, Boyd (1514) | Lost 1-2 | -181519 |
| 6standard | 383 | Boothman, David (1521) | Lost 0-2 | -181501 |
| 7standard | 368 | Savard, Stephen (1452) | Lost 0-2 | -191482 |
| average opponent: 1522record: 3-4 | new rating: 1482 | |||