Clarkson, Kevin
Current rating: 1553
Record: 9-7
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1547 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 20 | DeRenzis, Gregory (1487) | Won 2-1 | +171564 |
| 3standard | 27 | Tenjum, Andrew (1894) | Lost 0-2 | -121552 |
| 4standard | 177 | Kristoffersen, Johannes (1650) | Won 2-1 | +191571 |
| 5standard | 138 | Espe, Christopher (1615) | Won 2-0 | +191590 |
| 6standard | 74 | Joyce, Thomas (1525) | Won 2-0 | +171607 |
| 7standard | 110 | Freedman, Henry (1738) | Lost 0-2 | -161591 |
| 8standard | 189 | Kauffman, Thomas (1441) | Lost 0-2 | -201571 |
| 9standard | 185 | Rider, Derek (1592) | Lost 1-2 | -181553 |
| average opponent: 1618record: 4-4 | new rating: 1553 | |||
| Grand Prix Los Angeles 2014 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 553 | Snider, Warren (1485) | Lost 1-2 | -181482 |
| 2standard | 452 | Wright, Jarett (1464) | Lost 0-2 | -191463 |
| 3standard | 773 | Chavez, Julie (1465) | Won 2-0 | +181481 |
| 4standard | 572 | Nerio, Victor (1481) | Won 2-0 | +181499 |
| 5standard | 396 | Astorga, Efrain (1549) | Won 2-0 | +191518 |
| 6standard | 439 | Nass, Matthew (1799) | Won 2-1 | +231541 |
| 7standard | 233 | Hoehn, Brian (1534) | Won 2-0 | +181559 |
| 8standard | 196 | Calcano, Christian (1882) | Lost 1-2 | -121547 |
| average opponent: 1582record: 5-3 | new rating: 1547 | |||