Koss, Sabin
Current rating: 1550
Record: 5-3
| Grand Prix Oklahoma City 2019 (ELD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 82 | Williams, Dustin (1579) | Won 2-0 | +191519 |
| 2standard | 45 | Tonianse, Andranik (1681) | Lost 1-2 | -151504 |
| 3standard | 121 | Darling, Travis (1499) | Won 2-0 | +181522 |
| 4standard | 94 | Klosterman, Stefan (1837) | Lost 1-2 | -121510 |
| 5standard | 78 | Mears, Mitch (1519) | Won 0-0 | +181528 |
| 6standard | 78 | Sloo, Felix (1658) | Won 2-1 | +201548 |
| 7standard | 46 | Reyes, James (1466) | Won 2-1 | +171565 |
| 8standard | 25 | Shelley, Ryker (1729) | Lost 1-2 | -151550 |
| average opponent: 1621record: 5-3 | new rating: 1550 | |||