Barrera, Mauricio
Current rating: 1452
Record: 5-8
| Regional Championships Santiago 2023 Cycle 4 (pioneer) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 2 | Schwartz, Adam (1469) | Won 2-1 | +181481 |
| 2pioneer | 2 | Dumont, Luis Maria (1520) | Won 2-1 | +191500 |
| 3pioneer | 2 | Garay Lillo, Pablo (1620) | Lost 0-2 | -161484 |
| 4pioneer | 2 | Garreton, Mauricio (1488) | Won 2-0 | +181502 |
| 5pioneer | 2 | Paredes, Marcos (1669) | Lost 1-2 | -151487 |
| 6pioneer | 2 | Santibanez, Cesar (1497) | Lost 0-2 | -181469 |
| 7pioneer | 2 | Schnyder, Felipe (1502) | Lost 0-2 | -171452 |
| average opponent: 1538record: 3-4 | new rating: 1452 | |||
| Regional Championships Santiago 2022 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 83 | Uscamayta, Jose Francisco (1500) | Won 2-1 | +181518 |
| 2pioneer | 48 | Velazquez, Felipe (1586) | Lost 1-2 | -171501 |
| 3pioneer | 58 | Carrasco, Vicente (1503) | Won 2-1 | +181519 |
| 4pioneer | 22 | Yaksic Carrasco, Fernando (1533) | Lost 0-2 | -171502 |
| 5pioneer | 43 | Paolino, Lucas (1362) | Lost 1-2 | -211481 |
| 6pioneer | 68 | Corrales, Juan (1482) | Lost 0-2 | -181463 |
| average opponent: 1494record: 2-4 | new rating: 1463 | |||