Stein, Derek
Current rating: 1561
Record: 9-7-1
| Grand Prix Salt Lake City 2014 (M15 limited) | starting rating: 1586 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 214 | Pierson, Richard (1500) | Won 2-0 | +171603 |
| 2sealed | 13 | Currier, Damian (1518) | Won 2-1 | +161619 |
| 3sealed | 3 | Tabin, Lorenzo (1560) | Lost 0-2 | -191600 |
| 4sealed | 231 | Kuehnl, Zachary (1531) | Lost 1-2 | -191581 |
| 5sealed | 240 | Montalbo, Kekoapo'Aono (1503) | Lost 0-2 | -201561 |
| average opponent: 1522record: 2-3 | new rating: 1561 | |||
| Grand Prix Portland 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4modern | 116 | Isenhower, Brandon (1554) | Won 2-1 | +191519 |
| 5modern | 116 | Pardee, Samuel (1756) | Won 2-1 | +221541 |
| 6modern | 116 | Majlaton, Alex (1966) | Lost 0-2 | -101531 |
| 7modern | 116 | Koessel, Noah (1796) | Won 2-1 | +221553 |
| 8modern | 116 | Adams, Evan (1517) | Lost 1-2 | -181535 |
| 9modern | 89 | Champagne, Michael (1572) | Won 2-1 | +181553 |
| 10modern | 30 | Ahlberg, Daniel (1536) | Won 2-1 | +181571 |
| 11modern | 30 | Phillips, Cedric (1869) | Draw 1-1 | +51576 |
| 12modern | 30 | Passow, Christopher (1749) | Won 2-1 | +211597 |
| 13modern | 30 | Ward, Daniel (1759) | Lost 1-2 | -151582 |
| 14modern | 20 | Johnson, Thomas (1770) | Lost 1-2 | -141568 |
| 15modern | 30 | Herkimer, Nathan (1593) | Won 2-0 | +181586 |
| average opponent: 1703record: 7-4-1 | new rating: 1586 | |||