The First Stage of the 2009 Copa Santander Libertadores ran from January 27 to February 5.
Twelve teams qualified into this rounds and each will play a two-legged tie, one at home and one away. The winner of each tie will advance to the Second Stage. The teams will earn 3 points for a win, 1 point for a draw, and 0 for a loss. The team with the most points advances. The following criteria will be used for breaking ties on points:
Team #1 played the first leg at home.
Independiente MedellÃÂn advances on points 4âÂÂ1.
Deportivo Cuenca advances on goal difference.
Estudiantes advances on away goals.
Palmeiras advances on points 6âÂÂ0.
Universidad de Chile advances on away goals.
Nacional advances on points 4âÂÂ1.