Ullherr, Johannes
Current rating: 1469
Record: 2-4
| Grand Prix Prague 2017 (AER limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 291 | Rosada, Adrian (1862) | Lost 1-2 | -121488 |
| 2sealed | 707 | Alex, Dyson (1480) | Lost 0-2 | -181470 |
| 3sealed | 924 | Beutler, Daniel (1407) | Won 2-1 | +171487 |
| 4sealed | 883 | Szekeres, Andras Mark (1488) | Lost 0-2 | -181469 |
| 5sealed | 793 | Pohoraly, Ladislav (1464) | Won 2-0 | +181487 |
| 6sealed | 670 | Dinko, Masic (1491) | Lost 0-2 | -181469 |
| average opponent: 1532record: 2-4 | new rating: 1469 | |||