Rosbach, Kenneth
Current rating: 1517
Record: 4-3-4
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 242 | Lagowski, Mark (1482) | Won 2-1 | +171536 |
| 2standard | 31 | Houser, Zack R (1519) | Draw 1-1 | 01536 |
| 3standard | 146 | Hoffman, Ryan (1517) | Draw 1-1 | -11535 |
| 4standard | 281 | Serrano, Robert J (1517) | Draw 1-1 | 01535 |
| 5standard | 245 | Bakir, Ahmead (1509) | Lost 1-2 | -181517 |
| average opponent: 1509record: 1-1-3 | new rating: 1517 | |||
| Grand Prix Chicago 2009 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 167 | Keller, Bryan (1500) | Won 2-0 | +181518 |
| 2legacy | 84 | Hatfield, Jesse (1514) | Won 2-1 | +181536 |
| 3legacy | 109 | Lukas, Benjamin (1540) | Lost 1-2 | -181518 |
| 4legacy | 352 | Tran, Nam (1578) | Won 2-1 | +191537 |
| 5legacy | 125 | Rothenberger, Deryck M (1518) | Draw 1-1 | 01537 |
| 6legacy | 171 | Meckes, Josh (1534) | Lost 1-2 | -181519 |
| average opponent: 1531record: 3-2-1 | new rating: 1519 | |||