Mateo, Donovan
Current rating: 1502
Record: 4-4
| Regional Championships Mexico City 2023 Cycle 3 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 18 | Dominguez, Adrian (1500) | Won 2-1 | +181518 |
| 2pioneer | 12 | Franco, Jesus Humberto (1516) | Lost 1-2 | -181500 |
| 3pioneer | 37 | Wannam, Gustavo (1502) | Lost 1-2 | -181482 |
| 4pioneer | 47 | Gordillo Cardona, Jose Eduardo (1537) | Won 2-1 | +191501 |
| 5pioneer | 34 | Avila Barcenas, Luis Alberto (1503) | Lost 1-2 | -181483 |
| 6pioneer | 50 | Castellan, Javier (1553) | Lost 1-2 | -171466 |
| 7pioneer | 54 | Contreras, Luis (1466) | Won 2-1 | +181484 |
| 8pioneer | 42 | Martinez, Carlos [MEX] (1467) | Won 2-0 | +181502 |
| average opponent: 1506record: 4-4 | new rating: 1502 | |||