Skedzielewski, Karl
Current rating: 1523
Record: 6-5
| Grand Prix Pittsburgh 2011 (M12 standard) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 428 | Bova, Justin (1483) | Won 2-1 | +181517 |
| 2standard | 271 | Davis, Albert (1443) | Lost 1-2 | -191498 |
| 3standard | 465 | Grube, Peter L (1574) | Won 2-0 | +191517 |
| 4standard | 406 | Dovey, Emily (1519) | Won 2-1 | +181535 |
| 5standard | 299 | Peebles-Mundy, Benjamin (1848) | Lost 1-2 | -121523 |
| 6standard | 296 | Kungurow, Siegfried (1517) | Won 2-1 | +181541 |
| 7standard | 148 | Aleksandravicius, John (1576) | Lost 1-2 | -181523 |
| average opponent: 1566record: 4-3 | new rating: 1523 | |||
| Grand Prix Toronto 2010 (SOM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 502 | Allen, Jules (1446) | Won 2-0 | +171517 |
| 2sealed | 414 | Shaffer, Tim J (1487) | Lost 0-2 | -191498 |
| 3sealed | 518 | Foster, JJ D (1500) | Won 2-1 | +191517 |
| 4sealed | 503 | Maddock, Todd (1570) | Lost 0-2 | -181499 |
| average opponent: 1501record: 2-2 | new rating: 1499 | |||