2023 CONCACAF Central American Cup knockout stage

The 2023 CONCACAF Central American Cup knockout stage was played from 26 September to 5 December 2023. A total of 8 teams competed in the knockout stage to decide the champions of the 2023 CONCACAF Central American Cup.

Qualified teams
 The winners and runners-up of each of the four groups in the group stage advanced to the quarter-finals.

Seeding
 Teams were seeded 1–8 based on results in the group stage and assigned a position in a fixed bracket. For example, the first semi-final was contested between the winner of the 1 vs. 8 quarter-final and the winner of the 4 vs. 5 quarter-final. For each round, the host of the second leg was determined based on performance in all previous rounds, including the group stage.

Format
 The knockout stage was played on a single-elimination tournament with the following rules:
 * Each tie was played on a home-and-away two-legged basis. The home team of the second leg in each tie was determined separately for each round as follows (Regulations Article 12.11):
 * In the quarter-finals, the group winners hosted the second leg.
 * In the semi-finals and play-in, the higher-ranked teams based on total points accumulated in the group stage and the quarterfinals hosted the second leg.
 * In the finals, the higher-ranked team based on total points accumulated in the group stage, quarterfinals, and semi-finals hosted the second leg.
 * In the quarter-finals and semi-finals, if tied on aggregate, the away goals rule would be used. If still tied, the penalty shoot-out would be directly used to determine the winners (Regulations Article 12.10.2).
 * In the play-in and finals, if tied on aggregate, the away goals rule would also be used. If still tied, 30 minutes of extra time would be played without the away goals rule during this time. If still tied after extra time, the penalty shoot-out would be used to determine the winner (Regulations Article 12.10.3).

Bracket
The bracket of the final stages was determined as follows:  The bracket was decided based on the quarter-finals seeding.



Quarter-finals
In the quarter-finals, the teams were seeded based on their results in the group stage, with the group winners seeded 1–4, and the group runners-up seeded 5–8. The group winners hosted the second leg.  

Summary
 The first legs were played on 26–28 September, and the second legs were played on 3–5 October 2023.


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Matches
''Alajuelense won 6–1 on aggregate, advanced to the semi-finals (Match SF1) and qualified for the 2024 CONCACAF Champions Cup Round One at minimum. Cartaginés advanced to the play-in.''

''Herediano won 3–2 on aggregate, advanced to the semi-finals (Match SF1) and qualified for the 2024 CONCACAF Champions Cup Round One at minimum. Comunicaciones advanced to the play-in.''

''Real Estelí won 3–2 on aggregate, advanced to the semi-finals (Match SF2) and qualifies for the 2024 CONCACAF Champions Cup Round One at minimum. Saprissa advanced to the play-in.''

''Independiente won 3–1 on aggregate, advanced to the semi-finals (Match SF2) and qualifies for the 2024 CONCACAF Champions Cup Round One at minimum. Motagua advanced to the play-in.''

Play-in
In the play-in, the team in each tie which have the better performance across all previous rounds (group stage and quarter-finals) host the second leg.

Summary
 The first legs were played on 24–25 October, and the second legs were played on 31 October – 1 November 2023.


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Matches
Tied 2–2 on aggregate, Comunicaciones won on penalties and qualified for the 2024 CONCACAF Champions Cup Round One.

Saprissa won 6–2 on aggregate and qualified for the 2024 CONCACAF Champions Cup Round One.

Semi-finals
In the semi-finals, the team in each tie which have the better performance across all previous rounds (group stage and quarter-finals) host the second leg.

Summary
 The first legs were played on 25–26 October, and the second legs were played on 1–2 November 2023.


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Matches
Tied 4–4 on aggregate, Alajuelense won on penalties and advanced to the finals.

Real Estelí won 3–2 on aggregate and advanced to the finals.

Finals
In the finals, the team which has the better performances across all previous rounds (group stage, quarter-finals, and semi-finals) host the second leg.

Summary


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Matches
Alajuelense won 4–1 on aggregate and qualified for the 2024 CONCACAF Champions Cup Round of 16.