Kunkel, Charles
Current rating: 1407
| Grand Prix Denver 2015 (KTK standard) | starting rating: 1413 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 286 | English, Sean (1500) | Lost 1-2 | -171396 |
| 2standard | 538 | Manifold, Riley (1481) | Won 2-1 | +201416 |
| 3standard | 314 | Beydler, Ben (1624) | Lost 1-2 | -141402 |
| 4standard | 508 | Hallock, Mark (1450) | Won 2-1 | +181420 |
| 5standard | 504 | Bein, Raphael (1480) | Won 2-0 | +201440 |
| 6standard | 255 | Morse, Christopher (1522) | Lost 1-2 | -171423 |
| 7standard | 351 | Meyer, Shawn (1538) | Lost 0-2 | -161407 |
| top | average opponent: 1514record: 3-4 | new rating: 1407 | ||
| Grand Prix San Antonio 2014 (KTK standard) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 288 | Castell, Thomas (1495) | Won 2-1 | +181466 |
| 2standard | 237 | Stone, David (1431) | Lost 1-2 | -181448 |
| 3standard | 307 | Gonzalez, Rocky (1448) | Lost 0-2 | -181430 |
| 4standard | 431 | Redd, Caila (1481) | Lost 0-2 | -171413 |
| top | average opponent: 1464record: 1-3 | new rating: 1413 | ||
| Grand Prix Phoenix 2014 (BNG standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 49 | Mandelblatt, Zach (1600) | Lost 1-2 | -161484 |
| 4standard | 272 | Hopwood, Christian (1481) | Lost 1-2 | -181466 |
| 5standard | 491 | Gamez, Alexander (1453) | Lost 1-2 | -181448 |
| top | average opponent: 1511record: 0-3 | new rating: 1448 | ||