Katerberg, Mark
Current rating: 1509
Record: 6-6
| Grand Prix Minneapolis 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 104 | Schmidt, Jonathan (1404) | Lost 1-2 | -201480 |
| 3modern | 600 | Heck, Jack (1500) | Won 2-0 | +191499 |
| 4modern | 339 | Lee, Alex (1578) | Lost 0-2 | -171482 |
| 5modern | 659 | Mohr, Malcolm (1485) | Won 2-1 | +181500 |
| 6modern | 426 | Rogerson, Ian (1800) | Won 2-0 | +231523 |
| 7modern | 351 | Schuett, Court (1751) | Lost 0-2 | -141509 |
| average opponent: 1587record: 3-3 | new rating: 1509 | |||
| Grand Prix Minneapolis 2012 (AVR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 327 | Rodd, Richard (1500) | Won 2-0 | +181518 |
| 2standard | 234 | Pilachowski, Ryan (1518) | Won 2-0 | +181536 |
| 3standard | 19 | Steven M., (1518) | Lost 0-2 | -181518 |
| 4standard | 321 | Howard, Jonathan (1535) | Won 2-1 | +181536 |
| 5standard | 95 | Duelfer, Matthew (1513) | Lost 1-2 | -181518 |
| 6standard | 185 | Delacerda, Gabe (1535) | Lost 1-2 | -181500 |
| average opponent: 1520record: 3-3 | new rating: 1500 | |||