Harper, Darrin
Current rating: 1500
Record: 3-3
| Grand Prix Minneapolis 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 156 | Johnson, Ryan L (1500) | Won 2-0 | +181518 |
| 2sealed | 174 | Moorehead, Sam (1518) | Lost 0-2 | -181500 |
| 3sealed | 269 | Kurkowski, Jim (1502) | Lost 0-2 | -181482 |
| 4sealed | 460 | Blunk, Jeffrey (1482) | Won 2-1 | +181500 |
| 5sealed | 402 | Schieble, Adam (1472) | Won 2-0 | +181518 |
| 6sealed | 286 | Sullens, Forrest (1537) | Lost 0-2 | -181500 |
| average opponent: 1502record: 3-3 | new rating: 1500 | |||