Heffner, Jon
Current rating: 1500
Record: 3-3
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 180 | Downing, Bruce (1480) | Lost 0-2 | -181482 |
| 2sealed | 615 | Newlen, Greg (1490) | Won 2-0 | +181500 |
| 3sealed | 426 | Scott, William (1487) | Won 2-0 | +181518 |
| 4sealed | 439 | King, Jeremy (1459) | Won 2-1 | +171535 |
| 5sealed | 191 | Hutchison, Daniel (1645) | Lost 1-2 | -161519 |
| 6sealed | 272 | Field, Shawn M (1489) | Lost 0-2 | -191500 |
| average opponent: 1508record: 3-3 | new rating: 1500 | |||