Langer avoided a playoff when Jay Don Blake failed to register a needed birdie on the 18th hole. He instead fell to a bogey, finishing two behind Langer's 13-under 203.
Langer netted his 16th of his career seniors tour win, while Blake turned in a round of 4-under 68 for sole possession of second place at Prestonwood Country Club.
Mark Wiebe (68) claimed third place at 10-under 206.
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