Cowger, Michael
Current rating: 1523
Record: 8-7
| Grand Prix Charleston 2012 (RTR standard) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 92 | Mullen, Lawrence (1500) | Won 0-0 | +191481 |
| 2standard | 120 | Carranza, Guillermo (1518) | Won 2-1 | +181499 |
| 3standard | 7 | Poesel, Fred C (1500) | Won 2-0 | +181517 |
| 4standard | 38 | Chapin, Patrick (1801) | Won 2-1 | +241541 |
| 5standard | 12 | Gordon, Christopher 2 (1540) | Lost 1-2 | -181523 |
| 6standard | 70 | Johnson, Christopher (1555) | Lost 0-2 | -181505 |
| 7standard | 79 | Lane, Cole (1468) | Won 2-1 | +171522 |
| 8standard | 91 | Dail, Ryan (1503) | Lost 1-2 | -181504 |
| 9standard | 85 | Dowless, Joseph (1536) | Won 2-0 | +191523 |
| average opponent: 1547record: 6-3 | new rating: 1523 | |||
| Grand Prix Tampa 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 29 | Lapinski, Michael N (1463) | Lost 0-2 | -191481 |
| 2sealed | 301 | Chung, James (1482) | Won 2-0 | +181499 |
| 3sealed | 171 | Dyal, Cody (1503) | Won 2-1 | +181517 |
| 4sealed | 222 | Strunk, Michael (1475) | Lost 0-2 | -181499 |
| 5sealed | 263 | DiGirolamo, Glenn (1467) | Lost 0-2 | -191480 |
| 6sealed | 265 | Fuller, Murphy (1483) | Lost 0-2 | -181462 |
| average opponent: 1479record: 2-4 | new rating: 1462 | |||