Zewiske, Ian
Current rating: 1573
| Grand Prix Minneapolis 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 264 | Gilles, Kyle (1500) | Won 2-1 | +181518 |
| 2modern | 259 | Palecek, Jacob (1518) | Draw 1-1 | 01518 |
| 3modern | 399 | Schrandt, Kelly (1518) | Won 2-0 | +181536 |
| 4modern | 266 | Mann, Joe (1519) | Won 2-1 | +171553 |
| 5modern | 193 | Backstrom, Lars (1554) | Lost 1-2 | -181535 |
| 6modern | 314 | Parrish, Jason (1454) | Won 2-0 | +171552 |
| 7modern | 222 | McNeil, Henry (1531) | Won 2-0 | +171569 |
| 8modern | 177 | Mullen, Nathan (1543) | Won 2-0 | +181587 |
| 9modern | 139 | Yam, Wing Chun (1831) | Lost 1-2 | -141573 |
| top | average opponent: 1552record: 6-2-1 | new rating: 1573 | ||
| Grand Prix Columbus 2010 (legacy) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 89 | Finamore, David (1500) | Won 2-1 | +181520 |
| 2legacy | 27 | Regnier, Warren (1484) | Lost 1-2 | -191501 |
| 3legacy | 157 | Johnson, Richard (1451) | Won 2-1 | +171518 |
| 4legacy | 92 | Deroos, Cory A (1519) | Won 2-1 | +181536 |
| 5legacy | 46 | Ellis, Jordan (1536) | Lost 0-2 | -181518 |
| 6legacy | 101 | Mojica, Kaiser (1493) | Lost 1-2 | -181500 |
| top | average opponent: 1497record: 3-3 | new rating: 1500 | ||
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 254 | Seroogy, Jeremy (1518) | Won 2-1 | +181518 |
| 3sealed | 193 | Patrick, Ross A (1518) | Won 2-0 | +181536 |
| 4sealed | 102 | Singleton, Robert (1500) | Lost 1-2 | -181518 |
| 5sealed | 96 | Haines, Joseph (1567) | Won 2-0 | +191537 |
| 6sealed | 59 | Opalk, Ryan (1591) | Lost 1-2 | -171520 |
| 7sealed | 187 | Ryan, Forrest (1525) | Lost 0-2 | -181502 |
| top | average opponent: 1537record: 3-3 | new rating: 1502 | ||