Alfaro, Joe
Current rating: 1437
| Grand Prix Seattle-Tacoma 2012 (DKA limited) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 331 | Coufal, Tarl (1500) | Lost 0-2 | -171431 |
| 2sealed | 461 | HARRISON, SCOTT (1482) | Won 2-0 | +191450 |
| 3sealed | 295 | Clay, Ellis (1651) | Lost 0-2 | -141436 |
| 4sealed | 505 | Johnson, Cam (1482) | Won 2-1 | +181454 |
| 5sealed | 270 | Yakiwchuk, Kyle (1488) | Lost 0-2 | -171437 |
| top | average opponent: 1520record: 2-3 | new rating: 1437 | ||
| Grand Prix Portland 2010 (M11 limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 302 | Paul, Josh (1517) | Lost 1-2 | -171465 |
| 2sealed | 457 | Knudsvig, Jeff (1482) | Won 2-0 | +181483 |
| 3sealed | 213 | Welch, Colin (1516) | Lost 0-2 | -171466 |
| 4sealed | 469 | Wessel, Christopher (1481) | Lost 0-2 | -181448 |
| top | average opponent: 1499record: 1-3 | new rating: 1448 | ||
| Grand Prix Oakland 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 93 | Wellons, Christopher J (1500) | Lost 1-2 | -181482 |
| 2sealed | 120 | Yee, Calvin (1482) | Lost 0-2 | -181464 |
| 3sealed | 169 | Kenney, Chris (1464) | Won 2-1 | +181482 |
| 4sealed | 180 | White, Grant (1482) | Won 2-1 | +181500 |
| 5sealed | 140 | Sanatkar, Eman (1500) | Draw 1-1 | 01500 |
| 6sealed | 118 | Fiorillo, John (1514) | Lost 0-2 | -181482 |
| top | average opponent: 1490record: 2-3-1 | new rating: 1482 | ||