Hartzog, Joshua
Current rating: 1485
Record: 4-5
| Grand Prix San Antonio 2012 (RTR standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 185 | Bearden, Tiffannie (1500) | Won 2-1 | +181518 |
| 2standard | 48 | Pelletier, Robert B (1544) | Lost 0-2 | -181500 |
| 3standard | 230 | Maner, James (1500) | Won 2-0 | +181518 |
| 4standard | 144 | Bailey, Joni (1482) | Won 2-0 | +181536 |
| 5standard | 105 | Salinas, Merced D (1615) | Lost 0-2 | -171519 |
| 6standard | 215 | Nappier, James (1518) | Won 2-0 | +181537 |
| 7standard | 103 | Poff, Chris (1672) | Lost 0-2 | -151522 |
| 8standard | 149 | Winn, James (1466) | Lost 1-2 | -191503 |
| 9standard | 146 | Culpon, Chase (1498) | Lost 1-2 | -181485 |
| average opponent: 1533record: 4-5 | new rating: 1485 | |||