Pereyra, Matias
Current rating: 1567
Record: 16-14-1
| Grand Prix Santiago 2017 (AKH standard) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 72 | Navarrete, Jose (1499) | Won 2-0 | +191465 |
| 2standard | 15 | Eduardo, Gabriel (1503) | Lost 1-2 | -171448 |
| 3standard | 212 | Gutierrez, Javier (1460) | Won 2-0 | +181466 |
| 4standard | 140 | Bossaneli Araujo, William (1829) | Won 2-1 | +241490 |
| 5standard | 61 | Fuenzalida, Alvaro (1510) | Lost 0-2 | -171473 |
| 6standard | 157 | Ramirez, Alvaro (1539) | Won 2-1 | +191492 |
| 7standard | 126 | Cabrera, Leandro (1654) | Won 2-0 | +211513 |
| 8standard | 87 | Virgilio, Freddy (1530) | Lost 0-2 | -181495 |
| 9standard | 128 | Reyes, Benjamin (1510) | Won 2-1 | +181513 |
| 10standard | 386 | Vera, Gonzalo (1461) | Won 2-1 | +181531 |
| 11standard | 324 | Carvalho, Pedro (1953) | Won 2-0 | +251556 |
| 12standard | 307 | Melamed, Jonathan (1937) | Lost 0-2 | -121544 |
| 13standard | 348 | Monsalve, Andres (1704) | Won 2-1 | +211565 |
| 14standard | 322 | Sanchez, Romulo (1590) | Lost 0-2 | -171548 |
| 15standard | 339 | Fuenzalida, Darwin (1597) | Won 2-0 | +191567 |
| top | average opponent: 1618record: 10-5 | new rating: 1567 | ||
| Grand Prix Porto Alegre 2015 (modern) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 126 | Tostes Lemos, Rodolfo (1500) | Lost 0-2 | -181462 |
| 2modern | 206 | Bentes, Jorge Luiz (1482) | Won 2-0 | +191481 |
| 3modern | 193 | Michels Zunino, Lucas (1500) | Lost 1-2 | -181463 |
| 4modern | 343 | Paradela, Tomas (1519) | Lost 0-2 | -171446 |
| top | average opponent: 1500record: 1-3 | new rating: 1446 | ||
| Grand Prix Buenos Aires 2015 (DTK standard) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 211 | Righetti, Nicolas (1512) | Won 2-0 | +181535 |
| 2standard | 84 | Sandoval, Lucas Martin (1537) | Lost 1-2 | -181517 |
| 3standard | 258 | Calbucoy, Miguel A (1501) | Lost 0-2 | -191498 |
| 4standard | 239 | Otondo, Jorge Daniel (1483) | Lost 1-2 | -181480 |
| top | average opponent: 1508record: 1-3 | new rating: 1480 | ||
| Grand Prix Buenos Aires 2014 (BNG standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 81 | Otero, Martin (1500) | Won 2-1 | +181518 |
| 2standard | 143 | Aquarone, Nicolas (1518) | Won 2-0 | +181536 |
| 3standard | 62 | Barlotti, Leonel L (1500) | Won 2-1 | +171553 |
| 4standard | 9 | Magalhaes, Breno (1577) | Lost 0-2 | -171536 |
| 5standard | 70 | Vargas Carreras, Juan (1541) | Lost 0-2 | -181518 |
| 6standard | 170 | Astorga, Maximiliano (1502) | Won 2-1 | +181536 |
| 7standard | 85 | Criado, Julian (1519) | Draw 1-1 | -11535 |
| 8standard | 55 | Pena, Alejandro (1506) | Lost 0-2 | -181517 |
| top | average opponent: 1520record: 4-3-1 | new rating: 1517 | ||