Oster, Seth
Current rating: 1509
Record: 8-8
| Grand Prix Dallas-Fort Worth 2019 (modern) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 183 | Meighan, Vernon (1469) | Won 2-0 | +181481 |
| 2modern | 40 | Ramos, Ismael (1623) | Won 2-0 | +211502 |
| 3modern | 148 | Ellis, Bennett (1687) | Lost 0-2 | -151487 |
| 4modern | 229 | Alfaro, Juan (1515) | Won 2-0 | +191506 |
| 5modern | 165 | Leroy, Scott (1534) | Lost 1-2 | -181488 |
| 6modern | 220 | Blackmor, Jason (1662) | Won 2-1 | +211509 |
| 7modern | 158 | Hardwick, David (1494) | Won 2-0 | +181527 |
| 8modern | 64 | Tinsman, Lance (1539) | Lost 1-2 | -181509 |
| average opponent: 1565record: 5-3 | new rating: 1509 | |||
| Grand Prix Portland 2017 (XLN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 522 | Jung, Andrew (1534) | Lost 0-2 | -171483 |
| 2standard | 452 | Harrison, Luke (1482) | Lost 0-2 | -181465 |
| 3standard | 693 | Fortsch, Dustin (1360) | Won 2-0 | +161481 |
| 4standard | 701 | Rodriguez, Ryan (1530) | Lost 0-2 | -171464 |
| 5standard | 737 | Brisset, Noah (1465) | Won 2-1 | +181482 |
| 6standard | 557 | Griffin, Daniel (1470) | Won 2-0 | +171499 |
| 7standard | 420 | Chhagan, Nikhil (1480) | Lost 0-2 | -181481 |
| 8standard | 433 | Rogers, Andy (1489) | Lost 0-2 | -181463 |
| average opponent: 1476record: 3-5 | new rating: 1463 | |||