Phil Mickelson wins PGA Championship at age 50 to become golf’s oldest major champion AP Posted: May 23, 2021 6:09 PM CDT Updated: May 26, 2021 7:40 AM CDT by Rayos Syndication User KIAWAH ISLAND, S.C. (AP) — Phil Mickelson wins PGA Championship at age 50 to become golf’s oldest major champion. Categories: AP National News FacebookTwitterPinterestemail