Castillo Ubillus, Carlos Ivan
Current rating: 1428
Record: 1-5
| Grand Prix Costa Rica 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 96 | Cascante Calvo, Gustavo (1500) | Won 1-0 | +181518 |
| 2standard | 51 | Bagnasco, Carlos (1497) | Lost 0-2 | -181500 |
| 3standard | 147 | Orozco, Jose Miguel (1506) | Lost 0-2 | -181482 |
| 4standard | 172 | Leiva, Gerardo (1489) | Lost 0-2 | -181464 |
| 5standard | 216 | Pitti, Eduardo (1464) | Lost 1-2 | -181446 |
| 6standard | 208 | Moya Silva, Sergio Noe (1452) | Lost 0-2 | -181428 |
| average opponent: 1485record: 1-5 | new rating: 1428 | |||