Duchow, Sam
Current rating: 1495
Record: 7-8
| Grand Prix Minneapolis 2017 (HOU standard) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 408 | Manka-Cooper, Dylen (1500) | Won 2-0 | +181482 |
| 2standard | 55 | Toth, Joe (1483) | Lost 0-2 | -181464 |
| 3standard | 237 | Williams, Marc (1498) | Won 2-1 | +191483 |
| 4standard | 257 | Cloyd, Jeremy (1882) | Won 2-1 | +251508 |
| 5standard | 172 | Weber, Brian (1594) | Lost 1-2 | -161492 |
| 6standard | 157 | Anderson, Michael (1478) | Lost 0-2 | -191473 |
| 7standard | 357 | Addink, Ben (1634) | Won 2-1 | +211494 |
| 8standard | 251 | Chappell, Chase (1523) | Won 2-0 | +191513 |
| 9standard | 170 | Neilson, Chris (1529) | Lost 1-2 | -181495 |
| average opponent: 1569record: 5-4 | new rating: 1495 | |||
| Grand Prix Minneapolis 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 283 | Dyar, Zachary (1500) | Lost 0-2 | -181482 |
| 2standard | 374 | Allen, Joshua (1482) | Won 2-0 | +181500 |
| 3standard | 498 | Dick, Josh (1488) | Lost 1-2 | -181482 |
| 4standard | 519 | Pitoscia, Dominic (1483) | Lost 0-2 | -181464 |
| 5standard | 582 | Krause, Reed (1465) | Lost 0-2 | -181446 |
| 6standard | 603 | Oswskey, Jaden (1446) | Won 2-0 | +181464 |
| average opponent: 1477record: 2-4 | new rating: 1464 | |||