Martin, Garrett
Current rating: 1578
Record: 12-9
| Grand Prix Oklahoma City 2019 (ELD standard) | starting rating: 1574 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 54 | Foster, Jeremy (1514) | Won 2-0 | +171591 |
| 4standard | 22 | Rucker, Darren (1671) | Lost 0-2 | -171574 |
| 5standard | 23 | Bailey, A.J. (1618) | Lost 0-0 | -171557 |
| 6standard | 86 | Sharich, James (1480) | Won 2-0 | +171574 |
| 7standard | 57 | McMahon, Christopher (1691) | Won 2-1 | +201594 |
| 8standard | 34 | Bishop, Zacharia (1688) | Lost 1-2 | -161578 |
| average opponent: 1610record: 3-3 | new rating: 1578 | |||
| Grand Prix Oklahoma City 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 262 | Huebner, Alex (1491) | Won 2-1 | +181518 |
| 2modern | 46 | Zhou, Zirui (1898) | Lost 0-2 | -121506 |
| 3modern | 392 | Arie, Frank (1500) | Won 2-0 | +181524 |
| 4modern | 280 | Giron, Angel (1465) | Won 2-0 | +171541 |
| 5modern | 192 | Pham, Thomas (1539) | Won 2-0 | +181559 |
| 6modern | 45 | Longlais, Lucien (1821) | Lost 0-2 | -131546 |
| 7modern | 134 | Odom, Kelvin (1468) | Won 2-0 | +161562 |
| 8modern | 113 | Chandler, Marcus (1521) | Won 2-1 | +181580 |
| 9modern | 86 | Morawski, Jonathan (1915) | Won 2-0 | +241604 |
| 10modern | 53 | Varner, Adam (1662) | Lost 0-2 | -171587 |
| 11modern | 99 | Masterson, Casey (1589) | Lost 0-2 | -181569 |
| 12modern | 99 | Kaplan, Yohay (1658) | Lost 1-2 | -171552 |
| 13modern | 137 | Allen, Willow (1551) | Won 2-1 | +181570 |
| 14modern | 110 | Griffith, Cole (1610) | Won 2-0 | +191589 |
| 15modern | 100 | Blanchard, Mac (1748) | Lost 1-2 | -151574 |
| average opponent: 1629record: 9-6 | new rating: 1574 | |||