Jordan Spieth shoots 63 for early lead at FedEx St. Jude - ESPN

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 1-shot lead in the FedEx St. Jude Championship.

Spieth chipped in for eagle and made a key par putt on the 17th to take his first 18-hole lead on the PGA Tour since the Sony Open in January. He missed the cut the next day in Honolulu. That won't be possible at the TPC Southwind — the 70-player field has no cut.

The start to the PGA Tour postseason was sloppy one. Storms dumped 2 inches of rain in the early morning that caused a delay of just over two hours and players sent off on both sides. The greens were soft but fast. The TPC Southwind was soggy and muddy.

It was not the best day to be wearing white pants.

Tom Kim, who knows a little about mud, probably should have known better. He decided to roll up his pants to make them look like capris. He was briefly tied with Spieth until a late bogey sent him to a 64.

«I didn't want to get myself dirty,» Kim said. «Just don't like it. I've had a really bad week once this year, so just trying to stay away from it, really.»

It was more like one bad day at Oak Hill for the PGA Championship. He went into a marshy area to look for his tee shot, slipped and emerged with his shirt and pants covered in mud.

Kim is packing light for the three-week stretch of FedEx Cup playoffs.

«I had to make sure I was able to use those pants for a really long time, so I had to make sure they stayed really clean,» he said.

Collin Morikawa had six birdies for a 65 to join Emiliano Grillo 2 shots behind. That's $6,000 for relief efforts from the Hawaii wildfires as Morikawa pledged $1,000 per birdie during the playoffs.