De Leon Castillo, Jostein
Current rating: 1508
Record: 4-4-1
| Grand Prix Costa Rica 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 73 | Hernandez Gomez, Anthony (1500) | Draw 1-1 | 01500 |
| 2standard | 99 | Sanchez, Alex (1473) | Won 2-0 | +181518 |
| 3standard | 123 | Alvarez Sanchez, Eduardo Jose (1487) | Won 2-1 | +171535 |
| 4standard | 79 | Enriquez Mayoral, Jesus Edgar (1776) | Won 2-0 | +221557 |
| 5standard | 39 | Sanabria, Andres (1601) | Lost 1-2 | -171540 |
| 6standard | 74 | Estrada Morales, Mauricio (1765) | Lost 1-2 | -141526 |
| 7standard | 123 | Penaranda, Emmanuel (1525) | Won 2-1 | +181544 |
| 8standard | 79 | Alfaro, Luis Mauricio (1532) | Lost 0-2 | -181526 |
| 9standard | 105 | Gutierrez Ortega, Carlos (1537) | Lost 1-2 | -181508 |
| average opponent: 1577record: 4-4-1 | new rating: 1508 | |||