Calhoun, Tim D
Current rating: 1516
Record: 4-3
| Grand Prix Houston 2013 (DGM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 108 | Gomez, Jonathan (1436) | Won 2-0 | +171517 |
| 2sealed | 83 | Saba, Adam (1554) | Won 2-1 | +191536 |
| 3sealed | 132 | Coots, Amanda (1535) | Won 2-1 | +181554 |
| 4sealed | 3 | Blackmon, Nathan (1465) | Lost 1-2 | -201534 |
| 5sealed | 195 | Jacobsen, Todd (1536) | Won 2-0 | +181552 |
| 6sealed | 46 | Fladung, Daniel (1534) | Lost 0-2 | -181534 |
| 7sealed | 165 | Kaufmann, Loran (1547) | Lost 1-2 | -181516 |
| average opponent: 1515record: 4-3 | new rating: 1516 | |||