Ostermann, Reinhold
Current rating: 1482
Record: 3-4-1
| Grand Prix Brussels 2020 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 98 | Maymard, Christophe (1523) | Won 2-0 | +181518 |
| 2pioneer | 213 | Leroy, Thibault (1507) | Lost 0-2 | -181500 |
| 3pioneer | 615 | Homsma, Kim (1707) | Lost 0-2 | -141486 |
| 4pioneer | 647 | Park, Simon (1458) | Lost 0-2 | -191467 |
| 5pioneer | 724 | Pisani, Flavio (1364) | Won 2-1 | +171484 |
| 6pioneer | 549 | Gaikema, Edwin (1455) | Won 2-1 | +171501 |
| 7pioneer | 417 | Saettone, Matteo (1430) | Lost 0-2 | -191482 |
| 8pioneer | 393 | Ramos, Jorge (1503) | Draw 1-1 | 01482 |
| average opponent: 1493record: 3-4-1 | new rating: 1482 | |||