Vijay Singh carded a record-breaking round to take the lead at the £3 million Deutsche Bank Championship.

After opening the tournament with rounds of 70 and 71, Singh entered the third round five shots of the lead, which was shared by Justin Rose and Robert Allenby.

But Singh's fortunes changed dramatically after a course record 10-under-par 61.

At 11-under-par 202, Singh has a three-shot lead over Tiger Woods and Rose and renewed confidence after starting the week with a pair of average rounds.

Rose stayed in the hunt with a two-under round of 69.

Singh, delighted by his round, said: "It's all the hard work paying off, I was grinding so hard and was working on the right things and it's so nice to see it pay off.

"Today everything just moulded together and it was really fun doing it for a change. The ball was going where I was aiming and the putts were going in."  PA