Martinson, Daniel
Current rating: 1460
Record: 5-8
| Grand Prix Phoenix 2019 (ELD limited) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 58 | Tsang, Jonathan (1563) | Lost 1-2 | -161457 |
| 2sealed | 200 | Connelly, Joseph (1555) | Won 2-0 | +201477 |
| 3sealed | 149 | Son, Tony (1453) | Won 2-0 | +171494 |
| 4sealed | 136 | Shaffer, Brett (1546) | Lost 0-2 | -171477 |
| 5sealed | 135 | Hansen, Mark (1493) | Lost 1-2 | -171460 |
| average opponent: 1522record: 2-3 | new rating: 1460 | |||
| Grand Prix Cleveland 2019 (RNA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 117 | Dieli, James (1524) | Won 2-0 | +181518 |
| 2sealed | 156 | Byers, Wesley (1518) | Won 2-0 | +181536 |
| 3sealed | 187 | Tierney, Patrick (1772) | Lost 0-2 | -131523 |
| 4sealed | 385 | Pham, Nhi (1610) | Lost 0-2 | -171506 |
| 5sealed | 309 | Pace, Stanley (1520) | Lost 0-2 | -171489 |
| 6sealed | 376 | Harley, Carter (1438) | Won 2-0 | +171506 |
| 7sealed | 303 | Vasko, Ben (1556) | Lost 0-2 | -171489 |
| 8sealed | 243 | Steele, CJ (1646) | Lost 1-2 | -161473 |
| average opponent: 1573record: 3-5 | new rating: 1473 | |||