Castro, Roberto
Current rating: 1594
Record: 22-18
| Grand Prix Pittsburgh 2013 (GTC limited) | starting rating: 1584 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 3 | Demestrio, Joe (1741) | Lost 0-2 | -151569 |
| 5sealed | 183 | Kostelic, Kevin (1537) | Won 2-1 | +181587 |
| 6sealed | 98 | Nelson, Brad (2007) | Lost 0-2 | -111576 |
| 7sealed | 256 | Poole, Jamie (1579) | Lost 1-2 | -181558 |
| 8sealed | 250 | Song, Long (1521) | Won 2-0 | +171575 |
| 9sealed | 184 | Partington, Josh (1593) | Won 2-0 | +191594 |
| top | average opponent: 1663record: 3-3 | new rating: 1594 | ||
| Grand Prix Atlantic City 2013 (RTR standard) | starting rating: 1599 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 69 | Kelahan, Seamus (1562) | Lost 1-2 | -191580 |
| 4standard | 456 | Somers, Stu (1618) | Won 2-0 | +191599 |
| 5standard | 279 | Corvese, Harry (2013) | Lost 0-1 | -111588 |
| 6standard | 422 | Gereffi, Clay (1518) | Won 2-0 | +171605 |
| 7standard | 281 | Wolchesky, Elliott W (1479) | Lost 0-2 | -211584 |
| top | average opponent: 1638record: 2-3 | new rating: 1584 | ||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 199 | Garcia, Christopher (1500) | Won 2-1 | +171558 |
| 2standard | 60 | Baroni, Stephen (1625) | Won 2-1 | +191577 |
| 3standard | 116 | Buckingham, James (1733) | Won 2-0 | +211598 |
| 4standard | 101 | Snepvangers, Bram (1867) | Won 2-0 | +231621 |
| 5standard | 18 | Nowakowski, Stephen (1572) | Lost 0-2 | -191602 |
| 6standard | 96 | Massimino, Cory (1557) | Won 2-0 | +171619 |
| 7standard | 30 | Majors, Michael (1651) | Lost 1-2 | -171602 |
| 8standard | 94 | Ward, Mike (1461) | Won 2-0 | +151617 |
| 9standard | 65 | Holden, Ty (1601) | Lost 0-2 | -181599 |
| top | average opponent: 1619record: 6-3 | new rating: 1599 | ||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 24 | Bottcher, Chris (1518) | Won 2-0 | +181558 |
| 3sealed | 13 | Sears, Charles (1495) | Lost 1-2 | -191539 |
| 4sealed | 200 | Li, Hai (1501) | Lost 1-2 | -191520 |
| 5sealed | 209 | Skinner, John (1506) | Won 2-1 | +181538 |
| 6sealed | 124 | Gens, Jason (1519) | Won 2-0 | +181556 |
| 7sealed | 116 | Pikula, Chris (1712) | Won 2-0 | +201576 |
| 8sealed | 85 | Correia, Kevin (1564) | Lost 1-2 | -181558 |
| 9sealed | 74 | Andersen, Christoffer (1586) | Lost 0-2 | -171541 |
| top | average opponent: 1550record: 4-4 | new rating: 1541 | ||
| Grand Prix Atlanta 2008 (ALA limited) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 102 | Respet, Greg (1465) | Lost 1-2 | -201542 |
| 2sealed | 210 | Carter, Scott (1499) | Won 2-1 | +181560 |
| 3sealed | 221 | Cochran, Nicholas (1500) | Lost 0-2 | -201540 |
| top | average opponent: 1488record: 1-2 | new rating: 1540 | ||
| Grand Prix Indianapolis 2008 (SHM limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 112 | Rebennack, Andy (1500) | Won 2-0 | +181518 |
| 2sealed | 17 | Stolze, Philip (1640) | Won 2-1 | +201538 |
| 3sealed | 39 | Penick, John (1688) | Won 2-0 | +211559 |
| 4sealed | 376 | Wiegersma, Jelger (1898) | Lost 1-2 | -121547 |
| 5sealed | 98 | Foster, Ethan (1499) | Won 2-0 | +171564 |
| 6sealed | 68 | Neal, Stephen (1502) | Lost 1-2 | -191545 |
| 7sealed | 53 | Dickman, Philip (1570) | Lost 1-2 | -181527 |
| 8sealed | 186 | Crocker, Cyril T (1469) | Won 2-0 | +171544 |
| 9sealed | 123 | Physioc, Emerson (1535) | Won 2-1 | +181562 |
| top | average opponent: 1589record: 6-3 | new rating: 1562 | ||