sierra, raul
Current rating: 1486
Record: 3-4
| Regional Championships San Diego 2023 (ONE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 58 | Beverley, Robert (1702) | Lost 0-1 | -141486 |
| 2standard | 255 | Brennecke, Sarah (1446) | Won 2-0 | +171503 |
| 3standard | 140 | Maciolek, Jeremy (1455) | Won 2-0 | +171520 |
| 4standard | 122 | Kirklow, Joe (1582) | Won 2-0 | +191539 |
| 5standard | 41 | Webb, Lee (1538) | Lost 1-2 | -181521 |
| 6standard | 214 | Simon, Oliver (1520) | Lost 0-2 | -181503 |
| 7standard | 191 | Triebenbacher, Elliott (1566) | Lost 0-2 | -171486 |
| average opponent: 1544record: 3-4 | new rating: 1486 | |||