UPDATE 1-Golf-Weekley clinches repeat victory at Hilton Head

(Updates after Weekley seals victory)

ATLANTA, April 20 (Reuters) - Boo Weekley held his nerve over the treacherous closing stretch to complete a successful title defence by three shots at the Heritage Classic in Hilton Head Island, South Carolina on Sunday.

Three ahead of the chasing pack overnight, the 34-year-old American fired a level-par 71 in blustery conditions at the Harbour Town Golf Links to secure his second PGA Tour career victory.

Weekley posted a 15-under total of 269 to become the first player to win consecutive titles at Hilton Head since Davis Love III in 1992.

Fellow American Anthony Kim, helped by three birdies in a row from the 13th, also carded a 71 to share second place with 2006 winner Aaron Baddeley of Australia (69).

"I slept good last night but protecting the lead I didn't hit it very well today," Weekley said in a greenside television interview after a round featuring five birdies and five bogeys.

"I actually made some good key putts and I got it up and down a couple of times. I just struggled. Luckily I got it in and I reckon everybody else must have struggled a little bit today."

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