Halstead, Karl
Current rating: 1465
Record: 1-3
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 35 | Vlismas, Christopher (1500) | Won 2-0 | +181518 |
| 2standard | 237 | Yang, Daniel (1596) | Lost 0-2 | -171501 |
| 3standard | 562 | Benz, Cedar (1499) | Lost 1-2 | -181483 |
| 4standard | 636 | Reyna, Ryan (1449) | Lost 0-2 | -181465 |
| average opponent: 1511record: 1-3 | new rating: 1465 | |||