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Lee Kiefer was born in 1994. She is an American fencer who specializes in the foil discipline. Kiefer is a four-time Olympian, having competed in the 2012, 2016, 2020, and 2024 Summer Olympics. She is the 2020 Olympic champion in the individual foil event, and a two-time team bronze medalist in the same event (2016 and 2024).