Lagowski, Mark
Current rating: 1416
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 355 | Hartten, Chris (1565) | Lost 1-2 | -151432 |
| 2standard | 473 | Keen, Ryan (1482) | Draw 1-1 | 01432 |
| 3standard | 627 | Boyce, Cyrus (1504) | Lost 0-2 | -161416 |
| top | average opponent: 1517record: 0-2-1 | new rating: 1416 | ||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 242 | Rosbach, Kenneth (1519) | Lost 1-2 | -171465 |
| 2standard | 306 | Salaj, Megan L (1482) | Lost 1-2 | -181447 |
| top | average opponent: 1500record: 0-2 | new rating: 1447 | ||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 505 | Berk, Bradley (1500) | Lost 1-2 | -181482 |
| 2sealed | 641 | Shapiro, Yakov (1642) | Lost 0-2 | -151467 |
| 3sealed | 700 | Shag, Mike (1464) | Won 2-0 | +181485 |
| 4sealed | 716 | Vu, Quang (1483) | Won 2-0 | +181503 |
| 5sealed | 646 | Madriz, Ricardo (1374) | Lost 0-2 | -211482 |
| top | average opponent: 1493record: 2-3 | new rating: 1482 | ||