The win sends the Galaxy to MLS Cup '09 in Seattle, four years after its last appearance in the final.
The area power outages twice delayed the game -- one of the highest-profile matches in MLS playoff history. Along with overtime, the delays pushed the game's end to 11:30 pm on the West Coast -- 2:30 am on the East Coast -- testing the endurance of the ESPN2 viewers.
The game ebbed and flowed in rhythm with the delays. Houston had the edge until the first outage. The Galaxy took control thereafter, but Houston had the momentum in the latter parts of regulation.
Late in the first overtime period, Gregg Berhalter gave the Galaxy the lead, and Landon Donovan put the game away with a penalty six minutes later.
Nov. 13 in Carson, Calif.
Los Angeles 2 Houston 0 (OT).
LA -- Berhalter 1 (unassisted) 103
LA -- Donovan 3 (penalty kick) 109
Los Angeles -- Ricketts, Franklin, Berhalter, Gonzalez, Dunivant, Klein (Kirovski 63), Beckham, Kovalenko, Donovan, Buddle (Gordon 96), Magee (Lewis, 101)
Houston -- Onstad, Hainault, Boswell, Cameron, Barrett, Mullan (Ashe 83), Clark, Holden, Davis (Robinson 96), Oduro (Landin 72), Ching.
HOU -- Mullan (caution; Reckless Tackle) 26
LA -- Kovalenko (caution; Reckless Tackle) 77
LA -- Donovan (caution; Reckless Tackle) 89
HOU -- Boswell (caution; Reckless Foul) 111
HOU -- Landin (caution; Reckless Foul) 119