Jedrzejczyk, Michal
Current rating: 1421
| Grand Prix Krakow 2019 (M20 limited) | starting rating: 1440 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 378 | Fredheim, Christian Magnus (1563) | Won 2-1 | +211461 |
| 2sealed | 446 | Bach Wolthers, Nikolaj (1585) | Lost 1-2 | -161445 |
| 3sealed | 383 | Faherty, Francesco (1477) | Won 2-0 | +181463 |
| 4sealed | 129 | Marquilly, Adrien (1686) | Lost 1-2 | -141449 |
| 5sealed | 230 | Bach, Wolfgang (1810) | Lost 0-2 | -111438 |
| 6sealed | 307 | Adamus, Ireneusz (1500) | Lost 0-2 | -171421 |
| top | average opponent: 1603record: 2-4 | new rating: 1421 | ||
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 505 | Coll, Enric (1508) | Lost 1-2 | -171458 |
| 2sealed | 1279 | Mayer, Christof (1482) | Won 2-0 | +181476 |
| 3sealed | 932 | Liebich, Igor (1467) | Lost 1-2 | -181458 |
| 4sealed | 1021 | Baumgaertner, Tobias (1479) | Lost 1-2 | -181440 |
| top | average opponent: 1484record: 1-3 | new rating: 1440 | ||
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 418 | Grabnar, Tomaz (1549) | Won 2-1 | +191519 |
| 2sealed | 101 | Schmohl, Thomas (1589) | Won 2-1 | +191538 |
| 3sealed | 423 | Pinto, Antonio (1695) | Lost 0-2 | -151523 |
| 4sealed | 535 | Lynch, Sean [IRL] (1655) | Lost 1-2 | -161507 |
| 5sealed | 640 | Heikinheimo, Mikael (1678) | Lost 0-2 | -141493 |
| 6sealed | 639 | Polkowski, Grzegorz (1580) | Lost 1-2 | -171476 |
| 7sealed | 552 | Kiskis, Saulius (1453) | Lost 0-2 | -181458 |
| 8sealed | 502 | Kovacs, Gabor (1422) | Won 2-1 | +171475 |
| top | average opponent: 1578record: 3-5 | new rating: 1475 | ||