Serrahn, Michael
Current rating: 1381
| Grand Prix Seattle 2019 (MH1 limited) | starting rating: 1377 | |||
| round | table | opponent (rating) | result | Δrating |
| B1sealed | 629 | Gardner, Daniel K [USA] (1750) | Won 2-0 | +251402 |
| B2sealed | 481 | Kusakabe, Kyohei (1627) | Lost 0-2 | -141388 |
| B3sealed | 363 | Cunningham, Jackson (1753) | Lost 1-2 | -121376 |
| B4sealed | 380 | Marshall, Derrick (1439) | Won 2-0 | +191395 |
| B5sealed | 319 | Gonzalez, Christopher (1626) | Lost 1-2 | -141381 |
| top | average opponent: 1639record: 2-3 | new rating: 1381 | ||
| Grand Prix Vancouver 2018 (UMA limited) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 106 | Dyck, David (1499) | Lost 0-2 | -171427 |
| 2sealed | 242 | Foley, Cody (1410) | Lost 0-2 | -181409 |
| 3sealed | 372 | Martel, Ashton (1429) | Lost 0-2 | -181391 |
| 4sealed | 397 | Goudie, Nathan (1445) | Won 2-0 | +191410 |
| 5sealed | 329 | McFayden-Faint, Kaiden (1417) | Lost 0-2 | -181392 |
| 6sealed | 282 | Faust, Marcel (1447) | Lost 0-2 | -171375 |
| 7sealed | 220 | Greenblatt, Milo (1428) | Lost 0-2 | -171358 |
| 8sealed | 172 | Spiegelman, Ira (1410) | Won 2-0 | +191377 |
| top | average opponent: 1436record: 2-6 | new rating: 1377 | ||
| Grand Prix Minneapolis 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 470 | Follese, Benjamin (1500) | Lost 0-2 | -181482 |
| 2modern | 783 | Ruszczak, Stephan (1481) | Lost 1-2 | -181464 |
| 3modern | 798 | Lisko, Nathan (1357) | Lost 0-2 | -201444 |
| top | average opponent: 1446record: 0-3 | new rating: 1444 | ||