Diermann, Onno
Current rating: 1601
Record: 9-5-1 (GP) / 3-4 (professional)
| Neon Dynasty Championship (MTGA mixed) | starting rating: 1583 | |||
| round | table | opponent (rating) | result | Δrating |
| 1alchemy | 2 | Dunn, Zach (1848) | Lost 1-2 | -131570 |
| 2alchemy | 103 | Yukuhiro, Ken (1932) | Lost 0-2 | -121558 |
| 3alchemy | 110 | Burchett, Autumn (2057) | Lost 1-2 | -101548 |
| 4historic | 108 | Holiday, Nathan (1992) | Won 2-1 | +261574 |
| 5historic | 82 | MacSaveny, Tim (1715) | Won 2-0 | +211595 |
| 6historic | 75 | Freicham, Raoul (1498) | Lost 0-2 | -201575 |
| 7historic | 88 | Burchett, Autumn (2033) | Won 2-1 | +261601 |
| average opponent: 1868record: 3-4 | new rating: 1601 | |||
| Grand Prix Copenhagen 2019 (MH1 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 17 | Dick, Alexander (1612) | Lost 0-2 | -161484 |
| 2sealed | 331 | Kubel, Malte (1284) | Won 2-0 | +141498 |
| 3sealed | 491 | Sorensen, Hjalte (1511) | Lost 1-2 | -171481 |
| 4sealed | 484 | Mansveld, Julian (1300) | Won 2-1 | +141495 |
| 5sealed | 308 | Beck, Carl Emil (1470) | Won 2-1 | +181513 |
| 6sealed | 277 | Szarvas, Markus (1533) | Won 2-0 | +181531 |
| 7sealed | 210 | Ziller, Sebastian (1628) | Won 2-0 | +201551 |
| 8sealed | 133 | Kentesber, Sam (1592) | Won 2-1 | +191570 |
| 9sealed | 110 | Hirszhorn, Andreas (1622) | Draw 1-1 | +11571 |
| 10draft | 125 | Goldbaum, Nils-Uwe (1776) | Won 0-0 | +211592 |
| 11draft | 92 | Hylander, David (1725) | Lost 1-2 | -151577 |
| 12draft | 76 | Zisik, Armin (1593) | Lost 0-2 | -181559 |
| 13draft | 52 | Pispa, Lauri (1761) | Lost 0-2 | -141545 |
| 14draft | 86 | Hirszhorn, Andreas (1590) | Won 2-1 | +191564 |
| 15draft | 68 | Richard, Jefferson (1638) | Won 2-1 | +191583 |
| average opponent: 1576record: 9-5-1 | new rating: 1583 | |||