June 17, 1978: Ron Guidry strikes out 18, sets new Yankees mark - Pinstripe Alley
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June 17, 1978: Ron Guidry strikes out 18, sets new Yankee record – Society for American Baseball Research
Ron Guidry 18 strikeouts on this day in Yankees history - Sports Illustrated NY Yankees News, Analysis and More
June 17, 1978: Ron Guidry strikes out 18, sets new Yankee record – Society for American Baseball Research
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