Kidder, Samuel
Current rating: 1468
Record: 4-6
| Grand Prix New Jersey 2019 (RNA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 366 | Hakim, Joshua (1692) | Lost 0-2 | -141486 |
| 2sealed | 386 | Day, Ellie (1482) | Won 2-0 | +181504 |
| 3sealed | 380 | Troy, Ryan (1514) | Lost 0-2 | -181486 |
| 4sealed | 590 | Sayer, Jack (1484) | Lost 0-2 | -181468 |
| average opponent: 1543record: 1-3 | new rating: 1468 | |||
| Grand Prix Washington DC 2017 (HOU standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 22 | Pinheiro, Tyler (1500) | Won 2-0 | +181518 |
| 2standard | 45 | Yahya, Emad (1517) | Won 2-0 | +181536 |
| 3standard | 219 | Zyla, Sarah (1627) | Lost 1-2 | -161520 |
| 4standard | 416 | Feinman, Keith (1510) | Won 2-0 | +171537 |
| 5standard | 160 | Woods, Mark (1528) | Lost 1-2 | -181519 |
| 6standard | 402 | Brown, Turner (1463) | Lost 1-2 | -191500 |
| average opponent: 1524record: 3-3 | new rating: 1500 | |||