| Temporada | Equipo | Competición | PJ | G | A | Nota | ||
|---|---|---|---|---|---|---|---|---|
| 2026 | Everton | Liga de Primera | 10 | 0 | 0 | 4 | 0 | 6.3 |
| 2025 | Everton | Liga de Primera | 10 | 1 | 0 | 5 | 0 | 6.5 |
| 2025 | U. De Chile | Liga de Primera | 1 | 0 | 0 | 0 | 0 | 6.7 |
| 2024 | Magallanes | Primera B | 16 | 1 | 0 | 6 | 0 | – |
| 2023 | Magallanes | Primera Division | 27 | 2 | 0 | 5 | 1 | 6.6 |
| 2022 | Magallanes | Primera B | 28 | 6 | 0 | 6 | 0 | – |
| 2021 | Magallanes | Primera B | 25 | 4 | 0 | 3 | 0 | – |
| 2020 | Magallanes | Primera B | 15 | 2 | 0 | 1 | 0 | – |
| 2019 | Magallanes | Primera B | 8 | 0 | 0 | 0 | 0 | – |
| Total | 140 | 16 | 0 | 30 | 1 | – | ||
| Fecha | Desde | Hacia | Tipo | |
|---|---|---|---|---|
| - | Everton | U. De Chile | Return from loan | |
| - | U. De Chile | Everton | Loan | |
| 01 ene 2025 | Magallanes | U. De Chile | Transfer | |
| 01 ene 2020 | U. De Chile | Magallanes | Free agent | |
| - | Magallanes | U. De Chile | Return from loan | |
| - | U. De Chile | Magallanes | Loan |
J. Alfaro career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.