De La Roca, Mario
Current rating: 1514
| Grand Prix Costa Rica 2016 (SOI standard) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 121 | Chan Choi, Louis (1500) | Lost 0-2 | -181507 |
| 2standard | 121 | Montuori, Iolanda (1482) | Won 2-1 | +171524 |
| 3standard | 170 | Madrigal Hernandez, Oscar (1500) | Won 2-1 | +181542 |
| 4standard | 82 | Cuestas, Mauricio (1489) | Won 2-0 | +171559 |
| 5standard | 49 | Sui, Xin (1973) | Lost 1-2 | -111548 |
| 6standard | 138 | Lee, Michelle (1625) | Lost 1-2 | -171531 |
| 7standard | 165 | Pichardo, Luis (1605) | Lost 0-2 | -161515 |
| 8standard | 156 | Marin Jara, Pablo (1478) | Draw 0-0 | -11514 |
| top | average opponent: 1582record: 3-4-1 | new rating: 1514 | ||
| Grand Prix Mexico City 2015 (FRF limited) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 32 | Bojorquez, Wilfredo (1508) | Won 2-1 | +171554 |
| 4sealed | 37 | Castillo Mata, Eduardo (1602) | Lost 1-2 | -171537 |
| 5sealed | 47 | Parra Bedoya, Jairo Alberto (1537) | Won 2-1 | +181555 |
| 6sealed | 55 | Rios Gonzalez, Miguel (1518) | Lost 1-2 | -181537 |
| 7sealed | 62 | Canto Jimenez, Roman Humbert (1544) | Won 2-0 | +181555 |
| 8sealed | 55 | Becerra Reyes, Daniel (1630) | Won 2-1 | +191574 |
| 9sealed | 29 | Anguiano, Fernando G (1699) | Won 2-0 | +201594 |
| 10draft | 5 | Serrano, Alexis (1703) | Lost 1-2 | -161578 |
| 11draft | 24 | Zell, Susan (1569) | Lost 0-2 | -181560 |
| 12draft | 22 | Retana, Carlos (1641) | Won 2-1 | +201580 |
| 13draft | 6 | Villagrana, Gustavo (1584) | Lost 0-2 | -181562 |
| 14draft | 30 | Sanchez Strassburger, Juan Carlos (1551) | Lost 0-2 | -181544 |
| 15draft | 31 | Padilla Villasenor, Juan Alberto (1513) | Lost 1-2 | -191525 |
| top | average opponent: 1584record: 6-7 | new rating: 1525 | ||
| Grand Prix Mexico City 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 145 | Leon Carmona, Jorge (1500) | Lost 0-2 | -181482 |
| 2sealed | 307 | Rodriguez Villareal, G (1483) | Won 2-0 | +181500 |
| 3sealed | 239 | Rivera, Daniel (1500) | Lost 0-2 | -181482 |
| 4sealed | 233 | Rong Feng, Jun (1482) | Won 2-0 | +181500 |
| 5sealed | 221 | Quezada Barreto, Miguel (1499) | Won 2-0 | +181518 |
| 6sealed | 90 | Hernandez Argueta, Fernando (1521) | Lost 1-2 | -181500 |
| 7sealed | 175 | Gonzalez, Eduardo (1550) | Won 2-0 | +191519 |
| 8sealed | 101 | Ayala Vazquez, Julio C (1518) | Won 2-1 | +181537 |
| top | average opponent: 1507record: 5-3 | new rating: 1537 | ||