Below are collated results for the preliminary round of the 2009-10 CONCACAF Champions League. Ties are a two-match, home-and-away series, higher aggregate score wins, and away goals count. If aggregate and away goals are level, a 30-minute extra time period is played with penalties if necessary. First leg home team score is listed first for both legs.
PR1: San Francisco 2-3 San Juan Jabloteh (2:0, 0:3)
PR2: Pachuca 10-1 Jalapa (3:0, 7:1)
PR3: W Connection 4-3 NY Red Bulls (2:2, 2:1)
PR4: Olimpia 2-2 Árabe Unido (2:1, 0:1)
PR5: Herediano 2-6 Cruz Azul (2:6, 0:0)
PR6: D.C. United 2-2 L. A. Firpo (1:1, 1:1 aet, 5:4 pen)
PR7: Liberia 3-6 Real España (3:0, 0:6)
PR8: Toronto FC 0-1 Puerto Rico Islanders (0:1, 0:0)
