Taft, John
Current rating: 1389
Record: 3-10-3
| Grand Prix Washington DC 2017 (HOU standard) | starting rating: 1415 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 226 | Lerch, Philip (1500) | Won 2-1 | +201435 |
| 2standard | 175 | Epstein, Phillip (1633) | Lost 0-2 | -141421 |
| 3standard | 549 | Jackel-Dewhurst, Gabriel (1459) | Lost 1-2 | -181403 |
| 4standard | 615 | Paul, Rick (1453) | Lost 0-2 | -171386 |
| 5standard | 641 | Milligan, Matt (1463) | Won 2-1 | +201406 |
| 6standard | 619 | Hathaway, Patrick (1491) | Lost 0-2 | -171389 |
| top | average opponent: 1500record: 2-4 | new rating: 1389 | ||
| Grand Prix New York 2016 (SOI standard) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 502 | Wilson, Zachary (1516) | Lost 1-2 | -171431 |
| 2standard | 612 | Barrett, Michael (1480) | Lost 1-2 | -171414 |
| 3standard | 923 | Duran, Cecilio (1463) | Draw 1-1 | +11415 |
| 4standard | 890 | Lauro, John (1463) | Draw 1-1 | 01415 |
| top | average opponent: 1480record: 0-2-2 | new rating: 1415 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 137 | Gallivan, Patrick (1500) | Lost 1-2 | -171447 |
| 2sealed | 255 | Hult, Brycen (1482) | Draw 1-1 | +11448 |
| top | average opponent: 1491record: 0-1-1 | new rating: 1448 | ||
| Grand Prix Las Vegas 2013 (MMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1208 | Thomas, T J (1447) | Won 2-1 | +171517 |
| 2sealed | 1211 | Walters, Russ (1531) | Lost 1-2 | -181499 |
| 3sealed | 1181 | Ye, Hao (1551) | Lost 0-2 | -171482 |
| 4sealed | 1274 | Rohde, Andrew (1484) | Lost 0-2 | -181464 |
| top | average opponent: 1503record: 1-3 | new rating: 1464 | ||