Ruffing, Dan
Current rating: 1514
Record: 7-7
| Grand Prix Minneapolis 2017 (HOU standard) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 85 | Matthias, Scott (1500) | Won 2-1 | +181521 |
| 2standard | 46 | Bearl, Ken (1689) | Won 2-1 | +211542 |
| 3standard | 195 | Edwards, Mitchell (1728) | Won 2-1 | +211563 |
| 4standard | 17 | Ambler, Kevin (1580) | Won 2-0 | +191582 |
| 5standard | 35 | Gaieski, Ethan (1792) | Lost 0-2 | -151567 |
| 6standard | 125 | Weihe, Sean (1703) | Lost 1-2 | -151552 |
| 7standard | 160 | Buchanan, Calvin (1527) | Lost 0-2 | -191533 |
| 8standard | 246 | Williams, Travis (1440) | Lost 0-2 | -191514 |
| average opponent: 1620record: 4-4 | new rating: 1514 | |||
| Grand Prix Pittsburgh 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 184 | Jackson, Brian (1543) | Won 2-1 | +191519 |
| 2standard | 269 | Zeffert, Daniel (1564) | Lost 0-2 | -171502 |
| 3standard | 378 | Anderson, Nate (1481) | Won 2-0 | +171519 |
| 4standard | 242 | Dieter, Jonathan (1566) | Won 2-1 | +191538 |
| 5standard | 295 | Greenberg, Evan (1541) | Lost 0-2 | -181520 |
| 6standard | 245 | Nagy, Stephen (1561) | Lost 0-2 | -171503 |
| average opponent: 1543record: 3-3 | new rating: 1503 | |||