Gibb, Joshua
Current rating: 1544
| Grand Prix Phoenix 2014 (BNG standard) | starting rating: 1532 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 166 | McCall, Keith (1500) | Won 2-0 | +171549 |
| 2standard | 168 | Dorn, Victoria (1432) | Won 2-0 | +161565 |
| 3standard | 102 | Bowman, Joseph (1484) | Lost 1-2 | -191546 |
| 4standard | 185 | Leeper, Ryan (1594) | Lost 1-2 | -171529 |
| 5standard | 320 | Luton, Sam (1433) | Won 2-0 | +161545 |
| 6standard | 388 | Hackbert, Matthew (1523) | Won 2-0 | +171562 |
| 7standard | 159 | Merritt, Jake (1551) | Lost 0-2 | -181544 |
| top | average opponent: 1502record: 4-3 | new rating: 1544 | ||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 156 | Bonelli, David R (1520) | Won 2-1 | +191487 |
| 3standard | 99 | Nguyen, Richard (1521) | Draw 1-1 | 01487 |
| 4standard | 109 | Sosna, Ryan (1539) | Won 2-0 | +191506 |
| 5standard | 55 | Mantey, Tyler (1705) | Lost 1-2 | -141492 |
| 6standard | 129 | Mueller, Kyle C (1536) | Draw 1-1 | +11493 |
| 7standard | 190 | Desjardins, Eloi (1613) | Won 2-0 | +201513 |
| 8standard | 130 | Ferguson, Robert (1542) | Won 2-0 | +181531 |
| 9standard | 87 | Kahlo, Chase P (1554) | Draw 1-1 | +11532 |
| top | average opponent: 1566record: 4-1-3 | new rating: 1532 | ||
| Grand Prix Philadelphia 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 5 | Berni, Roberto (1523) | Lost 1-2 | -181482 |
| 3extended | 219 | Esposito, John (1570) | Lost 0-2 | -161466 |
| 4extended | 415 | Collins, Jason (1473) | Won 2-0 | +181484 |
| 5extended | 288 | Corley, Michael (1577) | Lost 0-2 | -161468 |
| top | average opponent: 1536record: 1-3 | new rating: 1468 | ||