Koerner, Julian
Current rating: 1641
Record: 23-17-1
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1603 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 652 | [anonymous] | Won 2-0 | +161619 |
| 2sealed | 952 | Volske, Fred (1519) | Won 2-0 | +171636 |
| 3sealed | 354 | Zavadzkis, Domantas (1868) | Won 2-1 | +221658 |
| 4sealed | 187 | Goddard, Sean (1903) | Lost 0-2 | -141644 |
| 5sealed | 343 | Jansen, Sepp (1622) | Won 2-0 | +181662 |
| 6sealed | 191 | Rauschert, Xaver (1557) | Lost 1-2 | -201642 |
| 7sealed | 482 | Viniczai, Tibor (1698) | Won 2-1 | +191661 |
| 8sealed | 341 | Zeggio, Riccardo (1584) | Lost 0-2 | -201641 |
| top | average opponent: 1659record: 5-3 | new rating: 1641 | ||
| Grand Prix Barcelona 2018 (modern) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 370 | Rovirosa Mulet, Llorens (1500) | Lost 1-2 | -181480 |
| 2modern | 489 | Le, Viet (1451) | Won 2-0 | +171497 |
| 3modern | 585 | Alves, Jose (1541) | Won 2-1 | +191516 |
| 4modern | 412 | Doulcet, Laurent (1488) | Lost 1-2 | -191497 |
| 5modern | 513 | Weis, Sandra (1462) | Won 2-1 | +181515 |
| 6modern | 346 | Felix, Jeremy (1521) | Won 2-0 | +181533 |
| 7modern | 186 | De Frutos Cordoba, Daniel (1519) | Won 2-0 | +181551 |
| 8modern | 93 | Tsuria, Daniel (1565) | Won 2-1 | +181569 |
| 9modern | 95 | Sanders, Dominic (1842) | Won 2-1 | +231592 |
| 10modern | 45 | Flores Valle, Jose Miguel (1709) | Won 2-0 | +201612 |
| 11modern | 45 | Calvanese, Pierluigi (1683) | Lost 0-2 | -171595 |
| 12modern | 62 | Dakic, Aleksandar (1642) | Won 2-1 | +191614 |
| 13modern | 48 | Rutten, Alex (1685) | Won 2-1 | +191633 |
| 14modern | 38 | Kaupa, Lukas (1716) | Lost 1-2 | -161617 |
| 15modern | 61 | Marion, Damien (1838) | Lost 1-2 | -141603 |
| top | average opponent: 1611record: 10-5 | new rating: 1603 | ||
| Grand Prix Birmingham 2017 (modern) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 565 | Murr, Mario (1595) | Lost 1-2 | -161466 |
| 2modern | 531 | Smith, Ryan [UK] (1436) | Won 0-0 | +171483 |
| 3modern | 497 | White, Paul [ENG] (1587) | Won 2-1 | +201503 |
| 4modern | 283 | Pollard, Jordan (1519) | Won 2-0 | +181521 |
| 5modern | 257 | Brusselmans, Laurens (1487) | Won 2-1 | +181539 |
| 6modern | 85 | Pichon, Elie (1690) | Lost 0-2 | -151524 |
| 7modern | 216 | Nielsen, Kasper (1901) | Lost 1-2 | -121512 |
| 8modern | 454 | Bernuau, Emmanuel (1679) | Lost 1-2 | -151497 |
| 9modern | 485 | Jenkins, Thomas (1524) | Draw 1-1 | +11498 |
| top | average opponent: 1602record: 4-4-1 | new rating: 1498 | ||
| Grand Prix Warsaw 2016 (KLD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 61 | Arendas, Laszlo (1418) | Won 2-0 | +171517 |
| 2standard | 61 | Matrenczyk, Michal (1534) | Won 2-0 | +181535 |
| 3standard | 258 | Viniczai, Tibor (1680) | Lost 0-2 | -161519 |
| 4standard | 288 | Caminiti, Roberto (1424) | Won 2-0 | +171536 |
| 5standard | 98 | Stefes, Martin (1485) | Lost 0-2 | -191517 |
| 6standard | 291 | Feo, Andrea (1471) | Lost 0-2 | -191498 |
| 7standard | 289 | Brusatori, Giacomo (1435) | Won 2-1 | +171515 |
| 8standard | 319 | Holland, Shea (1392) | Lost 0-2 | -201495 |
| 9standard | 274 | Andrieu, Thibault (1782) | Lost 0-2 | -131482 |
| top | average opponent: 1513record: 4-5 | new rating: 1482 | ||