Demuth, Michael
Current rating: 1490
| Grand Prix Detroit 2003 (Onslaught block) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 67 | Kornet, Andy (1432) | Won 2-1 | +181484 |
| 3block | 1 | Forster, Daniel (1518) | Lost 0-2 | -181466 |
| 4block | 119 | Petersen, David (1608) | Lost 0-2 | -151451 |
| 5block | 177 | Mullins, Chris (1433) | Won 2-1 | +181469 |
| 6block | 126 | Weber, Matt (1518) | Won 2-0 | +191488 |
| 7block | 66 | Jackson, Allen (1570) | Won 2-0 | +191507 |
| 8block | 57 | Piekarski, Chris (1551) | Lost 1-2 | -171490 |
| top | average opponent: 1519record: 4-3 | new rating: 1490 | ||
| Grand Prix Milwaukee 2002 (TOR standard) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 18 | Purn, Michael (1500) | Lost 0-2 | -171447 |
| 2standard | 260 | Wetherell, Ron (1479) | Lost 0-2 | -181429 |
| 3standard | 296 | Tucker, Thomas (1464) | Won 2-1 | +191448 |
| 4standard | 278 | Burns, Ed (1482) | Won 2-0 | +181466 |
| 5standard | 231 | Havlovic, Bob (1501) | Won 2-0 | +191485 |
| 6standard | 162 | Joiner, Steve (1444) | Lost 1-2 | -191466 |
| top | average opponent: 1478record: 3-3 | new rating: 1466 | ||
| Grand Prix Minneapolis 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 91 | Saad, Yusef (1500) | Won 2-0 | +181518 |
| 2block | 77 | Thompson, Gerry (1518) | Lost 1-2 | -181500 |
| 3block | 62 | Kooiker, Ben (1499) | Lost 1-2 | -181482 |
| 4block | 171 | Nemati, Kathy (1482) | Lost 0-2 | -181464 |
| top | average opponent: 1500record: 1-3 | new rating: 1464 | ||