Vaughn, Steven
Current rating: 1441
| Grand Prix Memphis 2019 (RNA standard) | starting rating: 1457 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 142 | Counts, Ryan (1501) | Won 2-1 | +191476 |
| 2standard | 199 | Metcalf, Alex (1470) | Lost 0-2 | -181458 |
| 3standard | 346 | Boatwright, Steve (1480) | Lost 1-2 | -181440 |
| 4standard | 344 | Merryman, Shelby (1484) | Won 2-0 | +191459 |
| 5standard | 361 | Marchant, Sam (1479) | Lost 0-2 | -181441 |
| top | average opponent: 1483record: 2-3 | new rating: 1441 | ||
| Grand Prix Memphis 2018 (RIX standard) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 250 | Sun, RuiKang (1526) | Won 2-0 | +191484 |
| 2standard | 31 | Ledford, Travis (1531) | Won 2-0 | +191503 |
| 3standard | 97 | Livingston, Robert (1653) | Lost 1-2 | -161487 |
| 4standard | 261 | Kirby, Zachary (1581) | Lost 1-2 | -161471 |
| 5standard | 268 | Atchison, Taylor (1686) | Lost 1-2 | -141457 |
| top | average opponent: 1596record: 2-3 | new rating: 1457 | ||
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 465 | Gallardo, Erick (1500) | Lost 0-2 | -181482 |
| 2standard | 595 | Botelho, David (1482) | Won 2-1 | +181500 |
| 3standard | 427 | Coleman, Philip (1464) | Lost 0-2 | -191481 |
| 4standard | 641 | Thomas, Kenneth (1550) | Lost 0-2 | -161465 |
| top | average opponent: 1499record: 1-3 | new rating: 1465 | ||