Lapinski, Michael N
Current rating: 1501
Record: 7-8-1
| Grand Prix Tampa 2009 (ZEN limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 29 | Cowger, Michael (1500) | Won 2-0 | +191482 |
| 2sealed | 182 | Xiang, Sam (1518) | Won 2-0 | +181500 |
| 3sealed | 70 | Stark, Bill (1642) | Won 2-1 | +211521 |
| 4sealed | 60 | Steht, Lee (1743) | Lost 0-2 | -141507 |
| 5sealed | 106 | Lindo, Aaron (1638) | Won 2-0 | +201527 |
| 6sealed | 125 | Pennock, Chris (1586) | Won 2-1 | +191546 |
| 7sealed | 52 | steinwachs, alex (1577) | Draw 1-1 | +11547 |
| 8sealed | 46 | Johnsey, David (1557) | Won 2-1 | +181565 |
| 9sealed | 27 | Carpenter, Brad (1697) | Lost 1-2 | -151550 |
| 10draft | 56 | Buckingham, James (1799) | Lost 0-2 | -141536 |
| 11draft | 35 | Littman, Fai (1612) | Lost 1-2 | -171519 |
| 12draft | 45 | Kasliner, Scott (1510) | Lost 0-2 | -181501 |
| average opponent: 1615record: 6-5-1 | new rating: 1501 | |||
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 41 | Schreve, Kevin (1465) | Won 2-1 | +171517 |
| 2extended | 109 | Folsom, Tom C (1518) | Lost 1-2 | -181499 |
| 3extended | 332 | Tuchek, Stephen (1484) | Lost 0-2 | -181481 |
| 4extended | 391 | Milner, John M (1482) | Lost 0-2 | -181463 |
| average opponent: 1487record: 1-3 | new rating: 1463 | |||