Ehrman, Joseph
Current rating: 1427
Record: 11-16
| Grand Prix Louisville 2017 (legacy) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 666 | Creen, Logan (1530) | Lost 1-2 | -161417 |
| 2legacy | 826 | Moscatel, Matthew (1476) | Lost 0-2 | -171400 |
| 4legacy | 925 | Greenwell, Connor (1483) | Won 2-0 | +201420 |
| 5legacy | 805 | Clarke, Justin (1491) | Won 2-1 | +191439 |
| 6legacy | 635 | Kostovic, Pavle (1527) | Won 2-0 | +201459 |
| 7legacy | 498 | Sauer, John (1579) | Lost 0-2 | -161443 |
| 8legacy | 674 | Gibbs, James (1539) | Lost 1-2 | -161427 |
| top | average opponent: 1518record: 3-4 | new rating: 1427 | ||
| Grand Prix Columbus 2016 (legacy) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 394 | Paz, Christina (1500) | Lost 0-2 | -171470 |
| 2legacy | 571 | Blyden, Jeffrey (1545) | Lost 1-2 | -171453 |
| 3legacy | 809 | Augustine, David (1468) | Won 2-0 | +181471 |
| 4legacy | 633 | [anonymous] | Lost 0-2 | -181453 |
| 5legacy | 752 | Saer, James (1464) | Lost 1-2 | -181435 |
| 6legacy | 742 | Brumm, Joel (1459) | Lost 0-2 | -181417 |
| 7legacy | 696 | Thomas, Brian (1325) | Won 2-1 | +171434 |
| 8legacy | 574 | Bouc, Zachary (1412) | Won 2-1 | +171451 |
| 9legacy | 479 | Shield, Jeffrey (1468) | Lost 0-2 | -181433 |
| top | average opponent: 1453record: 3-6 | new rating: 1433 | ||
| Grand Prix Cincinnati 2014 (BNG standard) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 229 | Burns, Mitchell (1520) | Won 2-0 | +181523 |
| 2standard | 182 | LAMB, RYAN (1518) | Lost 0-2 | -181505 |
| 3standard | 408 | Kelly, Matthew (1482) | Won 2-1 | +181523 |
| 4standard | 382 | King, Andrew (1549) | Lost 0-2 | -181505 |
| 5standard | 602 | Syed, Zan (1521) | Lost 1-2 | -181487 |
| top | average opponent: 1518record: 2-3 | new rating: 1487 | ||
| Grand Prix Louisville 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 211 | Gordon, Lauren (1500) | Won 2-0 | +181518 |
| 2standard | 259 | Crenshaw, Alan (1517) | Won 2-1 | +181536 |
| 3standard | 140 | Van Sice, Ian P (1535) | Lost 1-2 | -181518 |
| 4standard | 371 | Buhr, Renee (1520) | Won 2-1 | +181536 |
| 5standard | 313 | Lewis, Aaron (1802) | Lost 1-2 | -131523 |
| 6standard | 352 | Tan, Edgar (1525) | Lost 0-2 | -181505 |
| top | average opponent: 1567record: 3-3 | new rating: 1505 | ||