Hartman, Robbie A
Current rating: 1472
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 175 | Cruz, Michael (1481) | Lost 0-2 | -181470 |
| 2sealed | 521 | Kline, Joshua (1484) | Won 2-0 | +181488 |
| 3sealed | 354 | Jurkovic, Stanley (1574) | Lost 0-2 | -161472 |
| top | average opponent: 1513record: 1-2 | new rating: 1472 | ||
| Grand Prix Indianapolis 2008 (SHM limited) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 271 | Erickson, Jens (1518) | Lost 0-2 | -181488 |
| top | record: 0-1 | new rating: 1488 | ||
| Grand Prix New Jersey 2006 (TSP limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 163 | Reichert, Jonathan (1518) | Won 2-0 | +181518 |
| 3sealed | 63 | Phillips, Cedric (1723) | Won 2-0 | +221540 |
| 4sealed | 18 | Schmidt, Jed (1554) | Lost 0-2 | -181522 |
| 5sealed | 105 | Neary, Nicholas (1658) | Lost 0-2 | -151507 |
| 6sealed | 172 | Cole, Frank (1502) | Won 2-1 | +181525 |
| 7sealed | 173 | Morcate, Justin (1480) | Lost 1-2 | -191506 |
| top | average opponent: 1572record: 3-3 | new rating: 1506 | ||