Rosales, Alexander
Current rating: 1485
Record: 14-18-1
| Regional Championships Mexico City 2023 Cycle 4 (pioneer) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 86 | Castilla Lozano, Leopoldo Arturo (1500) | Won 2-1 | +181499 |
| 2pioneer | 5 | Cardenas Covarrubias, Jorge (1550) | Lost 0-2 | -171482 |
| 3pioneer | 72 | Perez, Victor [MEX] (1620) | Lost 1-2 | -151467 |
| 4pioneer | 58 | Hernandez, Ricardo (1472) | Won 2-0 | +181485 |
| 5pioneer | 47 | Barrera, Carlos (1504) | Lost 1-2 | -181467 |
| 6pioneer | 55 | Ortiz, Oscar (1418) | Won 2-1 | +171484 |
| 7pioneer | 38 | Anzaldo, Juan (1506) | Won 2-0 | +191503 |
| 8pioneer | 37 | Cortes, Rodrigo (1548) | Lost 1-2 | -181485 |
| top | average opponent: 1515record: 4-4 | new rating: 1485 | ||
| Regional Championships Mexico City 2023 Cycle 3 (pioneer) | starting rating: 1406 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 3 | Prado Mares, Sergio (1498) | Draw 1-1 | +11407 |
| 2pioneer | 41 | de Jesus Martinez, Gerardo (1500) | Lost 1-2 | -161391 |
| 3pioneer | 62 | Avila, Esteban (1480) | Won 2-1 | +201411 |
| 4pioneer | 42 | Castillo, Eduardo (1577) | Won 2-0 | +211432 |
| 5pioneer | 28 | Moran, Ericksson (1504) | Won 2-1 | +191451 |
| 6pioneer | 14 | Flores Silva, Mario Alejandro (1984) | Lost 0-2 | -91442 |
| 7pioneer | 28 | Esquivel, Hector (1524) | Won 2-1 | +191461 |
| 8pioneer | 18 | Marquez, Jaime (1544) | Won 2-1 | +201481 |
| top | average opponent: 1576record: 5-2-1 | new rating: 1481 | ||
| Regional Championships Mexico City 2023 (ONE standard) | starting rating: 1424 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 22 | Gomez, Luis (1525) | Lost 1-2 | -161408 |
| 2standard | 26 | Sanchez Cuevas, Luis Felipe (1599) | Lost 0-2 | -151393 |
| 3standard | 31 | Oro Yu, Ivan (1719) | Won 2-0 | +241417 |
| 4standard | 26 | Silva, Dagoberto (1663) | Lost 1-2 | -141403 |
| 5standard | 27 | Engelberg, Marcio (1428) | Lost 0-2 | -171386 |
| 6standard | 27 | Maya, Victor (1503) | Won 2-1 | +201406 |
| top | average opponent: 1573record: 2-4 | new rating: 1406 | ||
| Regional Championships Mexico City 2022 (pioneer) | starting rating: 1436 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 54 | Morales, David (1510) | Won 2-0 | +191455 |
| 2pioneer | 14 | Nolacea Lopez, Jose Luis (1492) | Lost 1-2 | -171438 |
| 3pioneer | 41 | Mendez, Pablo [CRI] (1496) | Won 2-0 | +191457 |
| 4pioneer | 20 | Lopez Tristan, Manuel Antonio (1552) | Lost 1-2 | -171440 |
| 5pioneer | 22 | Campos, Eli (1511) | Lost 0-2 | -161424 |
| top | average opponent: 1512record: 2-3 | new rating: 1424 | ||
| Grand Prix Costa Rica 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 38 | Byrd, Kalab (1589) | Lost 1-2 | -161484 |
| 4standard | 137 | Jiemenez Vega, David (1517) | Lost 0-2 | -181466 |
| 5standard | 170 | Cespedes, Cristian (1638) | Lost 0-2 | -151451 |
| 6standard | 176 | Calderon, Adrian Gene (1482) | Lost 0-2 | -171434 |
| 7standard | 190 | Moya Silva, Sergio Noe (1470) | Won 2-0 | +191453 |
| 8standard | 169 | Rodriguez, Maximiliano (1506) | Lost 1-2 | -171436 |
| top | average opponent: 1534record: 1-5 | new rating: 1436 | ||