Weekley - holds a three-shot advantage.

Sky Bet's Odds Compare All Prices

Defending champion Boo Weekley is 4/9 to retain his title heading into the final round of the Verizon Heritage tournament.

Weekley will take a three-shot lead into the last 18 holes and ranges from 3/10 in places to no better than 4/9 at Sportingbet.

Weekley carded a best-of-the-day 65 on Saturday to reach 15 under thanks to a run of five successive birdies in an outward half of 31.

Two further birdies and a solitary bogey saw him come home in 34 to move ahead of nearest rival fellow American Anthony Kim.

Kim is the second favourite at 13/2 with bet365 and it's then 12/1 (Blue Square) about Aaron Baddeley, who is five back, and 20/1 bar.