Powell shot an 85 to win the women's championship by two strokes over Linda Smith (87) and four strokes over two-time defending champion Salley Wessels (89). It's Powell's first Senior Classic Championship.
Cosler shot a 71 to claim his second men's title. He finished one stroke ahead of Randy Genna (72). Steve Benjamin, Egon Six and Mike Johnson tied for third with 74s.
In the nine hole tournament Hal King won the men's title with a 42. Judy Wilhelmi won the women's title with a 56.
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