Pitta Ortiz, Yahir Jesus Y
Current rating: 1565
| Grand Prix Mexico City 2014 (BNG limited) | starting rating: 1532 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 96 | Winkler, Alejandro (1500) | Won 2-0 | +181550 |
| 2sealed | 27 | Diaz, Rene (1518) | Won 2-1 | +171567 |
| 3sealed | 98 | Soto Hernandez, Rodrigo (1446) | Won 2-1 | +161583 |
| 4sealed | 28 | Monge Hernandez, Manuel (1611) | Won 2-1 | +181601 |
| 5sealed | 23 | Valle, Amadiz (1669) | Lost 0-2 | -161585 |
| 6sealed | 41 | Aragon Magadan, Marco Aurelio (1554) | Lost 1-2 | -191566 |
| 7sealed | 109 | Perez Bermudez, Ignacio (1563) | Won 2-1 | +181584 |
| 8sealed | 80 | Siles, Emmanuel (1508) | Lost 1-2 | -191565 |
| top | average opponent: 1546record: 5-3 | new rating: 1565 | ||
| Grand Prix Guadalajara 2013 (DGM standard) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 130 | Anguiano, Fernando G (1572) | Won 2-0 | +191555 |
| 2standard | 38 | del Real Gonzalez, Jose Fernando (1465) | Won 2-0 | +161571 |
| 3standard | 12 | Gutierrez Saldate, Luis Fernando (1515) | Lost 1-2 | -191552 |
| 4standard | 100 | Lomelin, Aramis (1518) | Lost 1-2 | -181534 |
| 5standard | 117 | olvera, mitchell (1499) | Won 2-1 | +171551 |
| 6standard | 125 | Alvarado, Paulo Cesar (1518) | Lost 1-2 | -191532 |
| top | average opponent: 1515record: 3-3 | new rating: 1532 | ||
| Grand Prix Mexico City 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 106 | Flores, Oscar (1505) | Lost 1-2 | -181482 |
| 2sealed | 208 | Bahena, Jaime (1482) | Won 2-1 | +181500 |
| 3sealed | 196 | Morales Gonzalez, Jose Juan (1501) | Won 2-1 | +181518 |
| 4sealed | 161 | Valdez Leon, Rodrigo E (1517) | Won 2-0 | +181536 |
| 5sealed | 74 | Mexicano, Armando (1555) | Won 2-1 | +181554 |
| 6sealed | 73 | Alvarez, Victor O (1551) | Won 2-0 | +181572 |
| 7sealed | 44 | Weintraub, Moises (1572) | Lost 0-2 | -181554 |
| 8sealed | 84 | Navarro, Eduardo (1544) | Lost 1-2 | -181536 |
| top | average opponent: 1528record: 5-3 | new rating: 1536 | ||