Diekmann, Jan Lukas
Current rating: 1447
Record: 0-3
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 565 | Landgraf, Philipp (1545) | Lost 1-2 | -171483 |
| 2sealed | 1090 | Polifka, Klaus (1476) | Lost 1-2 | -181465 |
| 3sealed | 1159 | Brauer, Jakob (1484) | Lost 0-2 | -181447 |
| average opponent: 1502record: 0-3 | new rating: 1447 | |||