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Karsten Warholm of Norway obliterated his own world record in the Olympic 400-meter hurdles Tuesday, finishing in 45.94 to break the old mark by .76.
Warholm sets WR, wins gold in 400m hurdles
Karsten Warholm of Norway obliterated his own world record in the Olympic 400-meter hurdles Tuesday, finishing in 45.94 to break the old mark by .76.
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