Madrigal Hernandez, Oscar
Current rating: 1504
Record: 4-4-1
| Grand Prix Costa Rica 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 99 | Retana Aguilar, Glen (1500) | Won 2-0 | +181518 |
| 2standard | 74 | Arrea, Jose (1522) | Lost 0-2 | -181500 |
| 3standard | 170 | De La Roca, Mario (1524) | Lost 1-2 | -171483 |
| 4standard | 213 | Santana, Reymundo (1465) | Won 2-1 | +171500 |
| 5standard | 131 | Hernandez, Victor [MEX] (1651) | Draw 1-1 | +31503 |
| 6standard | 160 | Navarro Arauz, Juan Jose (1506) | Lost 0-2 | -181485 |
| 7standard | 177 | Rojas, Mauricio (1487) | Lost 1-2 | -181467 |
| 8standard | 182 | Aguilar, Stanley (1465) | Won 1-0 | +181485 |
| 9standard | 149 | Chillon, Cesar (1543) | Won 2-0 | +191504 |
| average opponent: 1518record: 4-4-1 | new rating: 1504 | |||