The knockout stages of the 2013 Copa Libertadores de América were played from April 24 to July 24, 2013. A total of 16 teams competed in the knockout stages.
Contents
Qualified teams
The winners and runners-up of each of the eight groups in the second stage qualified for the knockout stages.
Seeding
The qualified teams were seeded in the knockout stages according to their results in the second stage, with the group winners seeded 1–8, and the group runners-up seeded 9–16.
Ranking rules: 1. Points; 2. Goal difference; 3. Goals scored; 4. Away goals scored; 5. Drawing of lots.
Format
In the knockout stages, the 16 teams played a single-elimination tournament, with the following rules:
Bracket
The bracket of the knockout stages was determined by the seeding as follows:
Round of 16
The first legs were played on April 24–25 and April 30–May 2, and the second legs were played on May 8–9 and 14–16, 2013.
Atlético Mineiro won 6–2 on aggregate.
Tied 2–2 on aggregate, Santa Fe won on away goals.
Olimpia won 3–2 on aggregate.
Boca Juniors won 2–1 on aggregate.
Tied 2–2 on aggregate, Newell's Old Boys won on away goals.
Fluminense won 3–2 on aggregate.
Tied 1–1 on aggregate, Real Garcilaso won on penalties.
Tijuana won 2–1 on aggregate.
Quarterfinals
The first legs were played on May 22–23, and the second legs were played on May 28–30, 2013.
Tied 3–3 on aggregate, Atlético Mineiro won on away goals.
Santa Fe won 5–1 on aggregate.
Olimpia won 2–1 on aggregate.
Tied 0–0 on aggregate, Newell's Old Boys won on penalties.
Semifinals
The first legs were played on July 2–3, and the second legs were played on July 9–10, 2013.
Tied 2–2 on aggregate, Atlético Mineiro won on penalties.
Olimpia won 2–1 on aggregate.
Finals
The finals were played on a home-and-away two-legged basis, with the higher-seeded team hosting the second leg. The teams tied on aggregate, the away goals rule was not used, and 30 minutes of extra time were played. A penalty shoot-out was used to determine the winner.
The first leg was played on July 17, and the second leg was played on July 24, 2013.
Tied 2–2 on aggregate, Atlético Mineiro won on penalties.