Parkin, Joseph
Current rating: 1463
Record: 3-5
| Grand Prix Memphis 2019 (RNA standard) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 157 | Hunt, Thomas (1500) | Won 2-1 | +191499 |
| 2standard | 16 | Lynch, Heath (1505) | Lost 1-2 | -181481 |
| 3standard | 308 | Nielsen, Donavon (1500) | Lost 1-2 | -181463 |
| average opponent: 1502record: 1-2 | new rating: 1463 | |||
| Grand Prix Memphis 2018 (RIX standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 32 | Marsden, Davis (1483) | Lost 0-2 | -181482 |
| 2standard | 372 | Bohyn, Yan (1448) | Won 2-0 | +171499 |
| 3standard | 273 | Fritz, Garrett (1452) | Lost 0-2 | -191480 |
| 4standard | 457 | McDaniel, Matthew (1482) | Won 2-1 | +181498 |
| 5standard | 271 | Ogle, Stephen (1499) | Lost 0-2 | -181480 |
| average opponent: 1473record: 2-3 | new rating: 1480 | |||