Castillo Pacheco, Carlos Alberto
Current rating: 1553
Record: 5-2-1
| Regional Championships Mexico City 2023 Cycle 4 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 98 | Palma Perez del Valle, Jose Emiliano (1439) | Lost 1-2 | -191481 |
| 2pioneer | 77 | Mendoza, Angel (1482) | Won 2-0 | +181499 |
| 3pioneer | 31 | Ponce Franco, Jose Manuel (1423) | Draw 1-1 | -11498 |
| 4pioneer | 52 | Martinez, Daniel [MEX] (1406) | Won 2-0 | +161514 |
| 5pioneer | 31 | Soto, Hector (1518) | Won 2-1 | +181532 |
| 6pioneer | 17 | Sanjur, Omar (1678) | Lost 1-2 | -151517 |
| 7pioneer | 35 | Azpilcueta, Juan (1521) | Won 2-1 | +181535 |
| 8pioneer | 25 | Barron, Diego (1538) | Won 2-1 | +181553 |
| average opponent: 1501record: 5-2-1 | new rating: 1553 | |||