Rohena, Zaby
Current rating: 1440
Record: 6-10
| Grand Prix Columbus 2012 (modern) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 183 | Vasovski, Michael (1617) | Lost 1-2 | -151433 |
| 2modern | 260 | Memory, Ian M (1487) | Won 2-1 | +191452 |
| 3modern | 250 | Cubenas, Chris (1510) | Won 2-0 | +191471 |
| 4modern | 190 | Filak, John (1493) | Lost 0-2 | -181453 |
| 5modern | 275 | Fontaine, Ian (1486) | Lost 0-2 | -171436 |
| 6modern | 366 | Piland, Jesse (1520) | Lost 0-2 | -171419 |
| 7modern | 326 | Ross, Jon (1464) | Won 2-0 | +191438 |
| 8modern | 256 | Pingrey, Tyler (1481) | Lost 0-2 | -171421 |
| 9modern | 222 | Christopher, Kevin (1468) | Won 2-1 | +191440 |
| average opponent: 1503record: 4-5 | new rating: 1440 | |||
| Grand Prix Baltimore 2012 (DKA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 171 | Kang, Matthew (1500) | Won 2-1 | +181518 |
| 2standard | 169 | Hobler, Seneca (1651) | Lost 1-2 | -161502 |
| 3standard | 509 | Harrison, Jonathan (1469) | Lost 1-2 | -181484 |
| 4standard | 682 | Purvis, Bert (1481) | Won 2-0 | +181502 |
| 5standard | 400 | Philipson, Scott (1528) | Lost 1-2 | -181484 |
| 6standard | 549 | McDowell, Kevin L (1480) | Lost 1-2 | -181466 |
| 7standard | 483 | Davis, Thomas (1448) | Lost 0-2 | -181448 |
| average opponent: 1508record: 2-5 | new rating: 1448 | |||