Sieben, Joshua
Current rating: 1520
| Grand Prix Minneapolis 2016 (SOI standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 317 | Noble, David [USA] (1460) | Won 2-0 | +171533 |
| 2standard | 3 | Olesberg, Michael (1571) | Won 2-1 | +191552 |
| 3standard | 163 | Tickal, Matthew (1666) | Won 2-0 | +201572 |
| 4standard | 49 | Koenecke, Thatcher (1550) | Lost 0-2 | -181554 |
| 5standard | 193 | Petrilli, Trevor (1697) | Lost 1-2 | -161538 |
| 6standard | 264 | Groothuis, Corbin (1518) | Lost 0-2 | -181520 |
| top | average opponent: 1577record: 3-3 | new rating: 1520 | ||
| Grand Prix Atlanta 2015 (BFZ limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 12 | Kerr, James (1531) | Won 2-0 | +191520 |
| 2sealed | 192 | Garritano, Anthony (1484) | Lost 1-2 | -191501 |
| 3sealed | 681 | Granados, Simon (1497) | Won 2-0 | +181519 |
| 4sealed | 277 | Norris, James (1379) | Lost 0-2 | -211498 |
| 5sealed | 710 | Yang, Shigong (1498) | Won 2-0 | +181516 |
| top | average opponent: 1478record: 3-2 | new rating: 1516 | ||
| Grand Prix Minneapolis 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 711 | Crow, Ian (1607) | Won 2-0 | +201520 |
| 2modern | 107 | Roman, Josh (1533) | Won 2-1 | +181538 |
| 3modern | 300 | Tuthill, Nikolai (1537) | Lost 1-2 | -181520 |
| 4modern | 424 | Morgan, Ian (1470) | Won 2-0 | +171537 |
| 5modern | 375 | Myers, Dylan (1532) | Lost 0-2 | -181519 |
| 6modern | 375 | Warns, Matt (1518) | Lost 1-2 | -181501 |
| top | average opponent: 1533record: 3-3 | new rating: 1501 | ||