Reed bid remains on track

An up and down front nine did little to derail Patrick Reed's victory bid at the final round of the Humana Challenge in California.

After shooting a 63 in each of the first three rounds, the American enjoyed a commanding seven-shot lead heading into the final day but that was down to five by the turn after he traded two bogeys against three birdies over the first nine holes.

His dropped shots at the par-three fifth and the par-four eighth allowed Justin Leonard to move to within sniffing distance of the lead after he carded a faultless front nine highlighted by five birdies.

Leonard will nevertheless need a similar disparity in fortunes over the back nine if he is to have any chance of reeling in the runaway leader, who needs to shoot a 64 to break the PGA Tour's all-time 72-hole scoring record, which currently stands at 254 (26 under par) and was set by Tommy Armour III in 2003.