Roberson, Kenneth
Current rating: 1489
Record: 4-5
| Grand Prix San Diego 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 153 | Stone, Jesse (1500) | Won 2-1 | +181518 |
| 2standard | 322 | Vega, Brian (1661) | Won 2-1 | +211539 |
| 3standard | 57 | Efigenio, Christopher (1669) | Lost 0-2 | -161523 |
| 4standard | 441 | Robinson, Lawrence (1517) | Lost 0-2 | -181505 |
| 5standard | 542 | Nero, Allen (1506) | Lost 1-2 | -181487 |
| 6standard | 452 | Wolfe, Rick (1482) | Won 2-1 | +181505 |
| 7standard | 346 | Arroyo, Mark (1482) | Won 2-0 | +171522 |
| 8standard | 244 | Chen, Kuang (1703) | Lost 0-2 | -141508 |
| 9standard | 233 | Rhoads, Shawn m (1499) | Lost 1-2 | -191489 |
| average opponent: 1558record: 4-5 | new rating: 1489 | |||