Clark, Jason L
Current rating: 1676
Record: 22-12
| Grand Prix Houston 2013 (DGM limited) | starting rating: 1638 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 288 | Jasheway, Zach W (1400) | Won 2-1 | +141652 |
| 2sealed | 187 | Morris, Larry (1534) | Won 2-1 | +161668 |
| 3sealed | 149 | Melendez, Robert (1516) | Won 2-1 | +151683 |
| 4sealed | 101 | LeBlanc, Garrett (1514) | Lost 1-2 | -211662 |
| 5sealed | 108 | Herdman, William (1349) | Won 2-1 | +131675 |
| 6sealed | 112 | Nakamura, Shuhei (1886) | Lost 0-2 | -151660 |
| 7sealed | 28 | Behr, Bryan (1569) | Won 2-1 | +171677 |
| 8sealed | 77 | Costa-Giomi, Gabriel (1485) | Won 2-1 | +141691 |
| 9sealed | 80 | Jensen, William (1834) | Lost 0-2 | -151676 |
| top | average opponent: 1565record: 6-3 | new rating: 1676 | ||
| Grand Prix San Antonio 2012 (RTR standard) | starting rating: 1631 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 42 | Rodriguez, Shaun (1728) | Lost 0-2 | -161615 |
| 3standard | 286 | Haines, Cody (1466) | Lost 1-2 | -211594 |
| 4standard | 326 | Nguyan, Min (1482) | Won 2-1 | +161610 |
| 5standard | 184 | De Coss, Horacio (1483) | Won 2-1 | +161626 |
| 6standard | 139 | Teague, Vincent (1519) | Won 2-1 | +161642 |
| 7standard | 120 | McClay, Sean (1554) | Won 2-1 | +161658 |
| 8standard | 94 | Karpyshyn, Drew (1555) | Lost 0-2 | -201638 |
| top | average opponent: 1541record: 4-3 | new rating: 1638 | ||
| Grand Prix Austin 2012 (ISD limited) | starting rating: 1634 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 222 | Phillips, Cedric (1661) | Lost 0-2 | -181616 |
| 5sealed | 120 | Smith, Kyle 1962 (1584) | Won 2-0 | +181634 |
| 6sealed | 53 | Gipson, Tripper (1576) | Lost 0-2 | -191615 |
| 7sealed | 181 | Hedgpeth, Justin (1520) | Won 2-1 | +161631 |
| 8sealed | 127 | Lewis, Shaun C (1552) | Won 2-1 | +171648 |
| 9sealed | 86 | Howden, Jason (1723) | Lost 0-2 | -171631 |
| top | average opponent: 1602record: 3-3 | new rating: 1631 | ||
| Grand Prix Dallas-Fort Worth 2011 (MBS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 55 | Jacob, Michael (1793) | Lost 0-2 | -131487 |
| 5standard | 95 | Carpenter, Ryan (1634) | Won 2-0 | +211508 |
| 6standard | 76 | Wirth, Richard J (1581) | Won 2-1 | +191527 |
| 7standard | 91 | Stewart, Casey (1531) | Lost 1-2 | -181509 |
| 8standard | 74 | Gemme, Matthew T (1478) | Won 2-1 | +181527 |
| 9standard | 83 | Marshall, Tyler S (1628) | Won 2-1 | +201547 |
| 10standard | 66 | Ong, Wei Jian (1657) | Lost 1-2 | -161531 |
| 11standard | 57 | Shields, Jharick (1565) | Won 2-0 | +181549 |
| 12standard | 30 | Eason, Anthony (1782) | Won 2-1 | +221571 |
| 13standard | 36 | Keith, Jody (1845) | Won 2-0 | +231594 |
| 14standard | 24 | Willson, Nikkoli (1592) | Won 2-0 | +181612 |
| 15standard | 7 | Edel, Willy (1823) | Won 2-1 | +221634 |
| top | average opponent: 1659record: 9-3 | new rating: 1634 | ||