Offenberg, Joel
Current rating: 1543
Record: 8-7
| Grand Prix Washington DC 2019 (MH1 limited) | starting rating: 1532 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 195 | Dixon, Ian (1493) | Won 2-1 | +171549 |
| 2sealed | 170 | Buck, Tyler (1520) | Won 0-0 | +181567 |
| 3sealed | 41 | Fei, Xinyu (1889) | Lost 0-2 | -131554 |
| 4sealed | 228 | Linde, Matt (1795) | Lost 0-2 | -131541 |
| 5sealed | 351 | Fowler, Stephen (1401) | Won 2-0 | +151556 |
| 6sealed | 228 | Hartbarger, Lance (1819) | Lost 1-2 | -131543 |
| average opponent: 1653record: 3-3 | new rating: 1543 | |||
| Grand Prix Washington DC 2017 (HOU standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 367 | Glosner, Alexander (1734) | Lost 1-2 | -141486 |
| 2standard | 368 | Reinhart, Cole (1480) | Lost 0-2 | -181468 |
| 3standard | 709 | Mitchell, Shawn (1479) | Won 2-1 | +181486 |
| 4standard | 611 | Garcia Rebolledo, Jose (1484) | Won 2-1 | +181504 |
| 5standard | 505 | Diaz, Andrew (1438) | Won 2-0 | +171521 |
| 6standard | 399 | Hinkle, Charles (1822) | Lost 0-2 | -131508 |
| 7standard | 406 | Hartless, Dylan (1433) | Won 2-1 | +171525 |
| 8standard | 398 | Lafleur, Thomas (1509) | Won 2-0 | +181543 |
| 9standard | 213 | Stankey, Matt (1951) | Lost 0-2 | -111532 |
| average opponent: 1592record: 5-4 | new rating: 1532 | |||