Herrholz, Michael
Current rating: 1437
| Grand Prix Miami 2015 (FRF standard) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 332 | Fuson, Joey (1500) | Won 2-1 | +191465 |
| 2standard | 121 | Molesch, Max (1580) | Lost 0-2 | -161449 |
| 3standard | 306 | Murray, Sean (1752) | Lost 1-2 | -131436 |
| 4standard | 485 | Radonich, Michael (1450) | Won 2-1 | +191455 |
| 5standard | 398 | England, Megan (1500) | Lost 0-2 | -181437 |
| top | average opponent: 1556record: 2-3 | new rating: 1437 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 960 | Jourdan, Bliss (1500) | Lost 0-2 | -171446 |
| top | record: 0-1 | new rating: 1446 | ||
| Grand Prix Miami 2013 (DGM standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 261 | Cole, William (1500) | Lost 1-2 | -181482 |
| 2standard | 356 | Rimmer, Raymond (1430) | Lost 1-2 | -191463 |
| 3standard | 509 | Molina, Joshua (1464) | Won 2-0 | +181481 |
| 4standard | 407 | Valdes, George (1485) | Lost 1-2 | -181463 |
| top | average opponent: 1470record: 1-3 | new rating: 1463 | ||