2004 Torneo Apertura (Chile)
The 2004 Campeonato Nacional Apertura Copa Banco del Estado was the 75th Chilean League top flight, in which Universidad de Chile won its twelfth league title after beating Cobreloa in the final, on penalties, with goalkeeper Johnny Herrera scoring the winning penalty kick.
Qualifying Stage
Results
Group standings
Group A
Group B
Group C
Group D
Aggregate table
Repechaje
Playoffs
First Round
and Universidad de Chile qualified as best losers.| Match | Home | Visitor | 1st Leg | 2nd Leg | Aggregate |
| 1 | Unión San Felipe | Cobreloa | 0–2 | 1–2 | 1–4 |
| 2 | Rangers | Santiago Wanderers | 1–1 | 0–3 | 1–4 |
| 3 | Unión Española | Universidad de Chile | 3–1 | 1–1 | 4–2 |
| 4 | Huachipato | Coquimbo Unido | 3–2 | 3–0 | 6–2 |
| 5 | Deportes Temuco | Universidad de Concepción | 0–1 | 1–1 | 1–2 |
| 6 | Audax Italiano | Colo-Colo | 0–1 | 0–1 | 0–2 |
Knockout Stage
Finals
----Top goalscorers
Pre-Copa Sudamericana 2004 Tournament
Preliminary round
Played on June 28 & July 4, 2004First round
Played on July 7 & 10, 2004*Qualified due to its better Apertura 2004 position
Second round
Played on July 21 & 25, 2004*Qualified due to its better Apertura 2004 position
Final round
Santiago Wanderers & Universidad de Concepción qualified to 2004 Copa Sudamericana