Clark, Calvin
Current rating: 1429
Record: 3-8-1
| Grand Prix Sacramento 2018 (M19 limited) | starting rating: 1434 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 342 | Ackiron, Evan (1523) | Lost 0-2 | -171417 |
| 2sealed | 126 | Wendorf, Peyton (1482) | Won 2-0 | +201437 |
| 3sealed | 343 | Freitas, Peter (1451) | Won 2-1 | +181455 |
| 4sealed | 396 | Hohns, Bryan (1889) | Lost 0-2 | -111444 |
| 5sealed | 294 | Rodriguez, Brian (1586) | Lost 0-2 | -151429 |
| average opponent: 1586record: 2-3 | new rating: 1429 | |||
| Grand Prix Memphis 2018 (RIX standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 273 | Self, Joshua (1653) | Lost 1-2 | -151485 |
| 2standard | 320 | Mathews, Hannah (1482) | Won 2-1 | +181503 |
| 3standard | 282 | Hurst, Tim (1606) | Draw 1-1 | +21505 |
| 4standard | 357 | Kisber, Zachary (1501) | Lost 0-2 | -181487 |
| 5standard | 422 | Mayer, Joseph (1490) | Lost 1-2 | -181469 |
| 6standard | 402 | Ehret, Andrew (1549) | Lost 1-2 | -171452 |
| 7standard | 353 | Deterding, David (1433) | Lost 0-2 | -181434 |
| average opponent: 1531record: 1-5-1 | new rating: 1434 | |||