Wammack, Clayton
Current rating: 1492
Record: 9-10
| Grand Prix Oklahoma City 2015 (modern) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 279 | Gonzales, Adam (1475) | Lost 0-2 | -191492 |
| 3modern | 272 | Walsh, Zacharie (1497) | Won 0-0 | +181510 |
| 4modern | 220 | Stien, Ryan (1501) | Lost 0-2 | -181492 |
| 5modern | 333 | Stasyszen, Jeremy (1471) | Won 2-0 | +181510 |
| 6modern | 18 | Roberson, Dustin (1526) | Won 2-0 | +181528 |
| 7modern | 263 | Gandall, Greg (1530) | Lost 0-2 | -181510 |
| 8modern | 207 | Kohli, Jonathon (1521) | Lost 1-2 | -181492 |
| top | average opponent: 1503record: 3-4 | new rating: 1492 | ||
| Grand Prix Dallas-Fort Worth 2015 (ORI limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 26 | Stringer, Johnathan (1553) | Won 2-0 | +191500 |
| 3sealed | 186 | Blackmor, Jason (1634) | Won 2-0 | +211521 |
| 4sealed | 14 | Schulhof, Leo (1831) | Won 2-0 | +231544 |
| 5sealed | 68 | Killeen, Tristan (1602) | Won 2-0 | +191563 |
| 6sealed | 10 | Jenkins, Michael (1582) | Lost 0-2 | -171546 |
| 7sealed | 80 | Wagner, Aaron (1574) | Lost 0-2 | -181528 |
| 8sealed | 103 | Friend, Callum (1560) | Lost 0-2 | -171511 |
| top | average opponent: 1619record: 4-3 | new rating: 1511 | ||
| Grand Prix San Antonio 2014 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 151 | Nguyen, Vinh (1514) | Won 2-1 | +181518 |
| 4standard | 34 | Condon, Alex (1508) | Lost 1-2 | -181500 |
| 5standard | 76 | LaCombe, Jared (1488) | Lost 0-2 | -181482 |
| 6standard | 200 | Stone, David (1440) | Won 2-1 | +171499 |
| 7standard | 121 | Gervasi, Paladin (1497) | Lost 1-2 | -181481 |
| top | average opponent: 1490record: 2-3 | new rating: 1481 | ||