The championship stage of the 2012–13 CONCACAF Champions League was played from March 5 to May 1, 2013. A total of eight teams competed in the championship stage.[1]
The winners of each of the eight groups in the group stage qualified for the championship stage.
| Group | width=175 | Winners |
|---|---|---|
| 1 |  Santos Laguna | |
| 2 | Herediano | |
| 3 |  Houston Dynamo | |
| 4 | Seattle Sounders FC | |
| 5 | Los Angeles Galaxy | |
| 6 | UANL | |
| 7 | Monterrey | |
| 8 | Xelajú |
The qualified teams were seeded 1–8 in the championship stage according to their results in the group stage.
In the championship stage, the eight teams played a single-elimination tournament. Each tie was played on a home-and-away two-legged basis. The away goals rule was used if the aggregate score was level after normal time of the second leg, but not after extra time, and so a tie was decided by penalty shoot-out if the aggregate score was level after extra time of the second leg.[1]
The bracket of the championship stage was determined by the seeding as follows:[1]
The first legs were played on March 5–7, 2013, and the second legs were played on March 12–13, 2013.[2]
First legs: All times U.S. Eastern Standard Time (UTC−5); Second legs: All times U.S. Eastern Daylight Time (UTC−4)
------------
Monterrey won 4–2 on aggregate.----Seattle Sounders FC won 3–2 on aggregate.----Santos Laguna won 3–1 on aggregate.----Los Angeles Galaxy won 4–1 on aggregate.
The first legs were played on April 2–3, 2013, and the second legs were played on April 9–10, 2013.[3]
All times U.S. Eastern Daylight Time (UTC−4)
----
Santos Laguna won 2–1 on aggregate.----Monterrey won 3–1 on aggregate.
See main article: 2013 CONCACAF Champions League Finals.
The first leg was played on April 24, 2013, and the second leg was played on May 1, 2013.
All times U.S. Eastern Daylight Time (UTC−4)
Monterrey won 4–2 on aggregate.