Jordan Spieth keeps a clean card in the mud for a 63 to lead the PGA Tour playoff opener

Jordan Spieth walks off the 18th hole after finishing the first round of the St. Jude Championship at TPC Southwind on Thursday in Memphis, Tenn.

MEMPHIS, Tenn. — Jordan Spieth kept a clean card and clean pants, even without having to roll them up to his calves on a rain-soaked course. He opened with a 7-under 63 on Thursday for a one-shot lead in the FedEx St. Jude Championship.