Ballmer, Tad
Current rating: 1483
Record: 2-3
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 283 | Johnson, Ian (1554) | Won 2-1 | +191519 |
| 2standard | 149 | MacDonald, Joseph (1517) | Lost 1-2 | -181501 |
| 3standard | 334 | Nguyen, Minhhoang (1501) | Lost 1-2 | -181483 |
| 4standard | 563 | Trafton, Jess (1482) | Won 2-0 | +181501 |
| 5standard | 453 | Baker, Patrick (1491) | Lost 0-2 | -181483 |
| average opponent: 1509record: 2-3 | new rating: 1483 | |||