Marinas, Gene
Current rating: 1486
| Grand Prix Detroit 2013 (modern) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 398 | Perera, Vittorio (1644) | Lost 1-2 | -151484 |
| 2modern | 384 | Connel, Ryan (1482) | Won 0-0 | +181502 |
| 3modern | 483 | Dean, Paul (1618) | Lost 0-2 | -161486 |
| top | average opponent: 1581record: 1-2 | new rating: 1486 | ||
| Grand Prix Charlotte 2013 (GTC limited) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 256 | Greer, Edward (1552) | Won 2-0 | +191536 |
| 2sealed | 82 | Strong, Adam (1515) | Lost 1-2 | -191517 |
| 3sealed | 394 | Herring, Clayton (1500) | Lost 1-2 | -181499 |
| top | average opponent: 1522record: 1-2 | new rating: 1499 | ||
| Grand Prix Toronto 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 225 | Liu, Kuangyi (1482) | Won 2-1 | +181518 |
| 2modern | 220 | Richard, Pascal (1513) | Won 2-0 | +181536 |
| 3modern | 284 | Boddy, Michael J (1613) | Lost 1-2 | -171519 |
| 4modern | 156 | Howe, Peter (1453) | Lost 1-2 | -191500 |
| 5modern | 363 | Zarichny, Brandon (1474) | Won 2-0 | +171517 |
| 6modern | 269 | Hounsell, Marty (1518) | Won 2-0 | +181535 |
| 7modern | 175 | Nguyen, Laurent (1535) | Lost 1-2 | -181517 |
| 8modern | 193 | Foster, JJ D (1500) | Won 1-0 | +181535 |
| 9modern | 141 | Lachance, Marlin (1540) | Lost 0-2 | -181517 |
| top | average opponent: 1514record: 5-4 | new rating: 1517 | ||