Ortiz, Oscar
Current rating: 1401
Record: 11-19
| Regional Championships Mexico City 2023 Cycle 4 (pioneer) | starting rating: 1432 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 102 | Duque, Pablo (1533) | Lost 1-2 | -161416 |
| 2pioneer | 76 | Sanchez Cuevas, Luis Felipe (1530) | Lost 1-2 | -161400 |
| 3pioneer | 83 | Chavez, Luis (1314) | Won 2-0 | +161416 |
| 4pioneer | 68 | Conde, Andres (1444) | Won 2-1 | +191435 |
| 5pioneer | 56 | SANCHEZ, SHALOM (1503) | Lost 0-2 | -171418 |
| 6pioneer | 55 | Rosales, Alexander (1467) | Lost 1-2 | -171401 |
| 7pioneer | 61 | Villalbazo, Mauricio (1463) | Won 2-1 | +191420 |
| 8pioneer | 52 | Mendez Aguilar, Rolando (1340) | Lost 0-2 | -191401 |
| top | average opponent: 1449record: 3-5 | new rating: 1401 | ||
| Grand Prix Mexico City 2018 (GRN limited) | starting rating: 1413 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 61 | Perez Osorio, Manuel Alberto (1447) | Lost 1-2 | -181395 |
| 2sealed | 117 | Cortez Cerna, Leonardo (1482) | Won 2-0 | +201415 |
| 3sealed | 94 | Murray, Michael (1391) | Won 2-0 | +171432 |
| 4sealed | 117 | Nelson, Colleen (1537) | Won 2-0 | +201452 |
| 5sealed | 61 | Mira Uribe, Juan Felipe (1709) | Lost 0-2 | -131439 |
| 6sealed | 82 | Friedman, Ben (2134) | Lost 1-2 | -71432 |
| top | average opponent: 1617record: 3-3 | new rating: 1432 | ||
| Grand Prix Mexico City 2016 (OGW limited) | starting rating: 1438 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 258 | Ramirez Padilla, Alfonso (1653) | Lost 1-2 | -141424 |
| 2sealed | 218 | Reyes Patino, Rafael Antonio (1531) | Won 2-1 | +201444 |
| 3sealed | 285 | Reyna Gonzalez, Antonio (1463) | Lost 1-2 | -181426 |
| 4sealed | 277 | Navarro, Juan Roberto (1414) | Won 2-1 | +181444 |
| 5sealed | 217 | Rodriguez, Miguel Angel (1652) | Lost 1-2 | -141430 |
| 6sealed | 298 | Hernandez Perez, Felipe (1482) | Lost 1-2 | -171413 |
| top | average opponent: 1533record: 2-4 | new rating: 1413 | ||
| Grand Prix Mexico City 2014 (BNG limited) | starting rating: 1452 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 235 | Maza Pimienta, Carlos Gabriel (1553) | Won 2-1 | +191471 |
| 2sealed | 137 | Aguilar Cruz, Luis Alberto (1432) | Lost 0-2 | -181453 |
| 3sealed | 116 | Leon, Gilbert (1542) | Lost 1-2 | -171436 |
| 4sealed | 275 | penaflores, omar (1481) | Won 2-1 | +191455 |
| 5sealed | 200 | Mendoza, David (1500) | Lost 1-2 | -171438 |
| top | average opponent: 1502record: 2-3 | new rating: 1438 | ||
| Grand Prix Mexico City 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 6 | BONILLA, CARLOS (1537) | Lost 1-2 | -171483 |
| 4sealed | 132 | Millan, Jorge (1517) | Won 2-0 | +181501 |
| 5sealed | 92 | Bliek, Justin (1677) | Lost 0-2 | -151486 |
| 6sealed | 148 | Gutierrez Saldate, Gabriel (1518) | Lost 1-2 | -171469 |
| 7sealed | 156 | Presuel, Gerardo (1500) | Lost 0-2 | -171452 |
| top | average opponent: 1550record: 1-4 | new rating: 1452 | ||