Weston-on-the Green racer Graham Fennymore maintains the overall lead of the Autosport Caterham Superlight Challenge despite failing to win either race at the Snetterton circuit in Norfolk.

Fennymore was beaten into second place by youngster Guy Harrington on Saturday, and slipped to third on Sunday behind Ben de Zille Butler and Harrington.

Saturday's barnstorming third round of the championship provided a fascinating battle between youth and experience, with 19-year-old championship newcomers Harrington and Charles Bateman taking on their 40-something rivals Fennymore and Simon Crompton at the front of the field.

Fennymore might have been forgiven for thinking he had the race in the bag after early pacesetter de Zille Butler dropped out with clutch problems, but his 2.3-second lead over Harrington dwindled to nothing as the youngster banged in fastest lap after fastest lap. By mid-distance, Harrington was right on Fennymore's tail and the scene was set for a dramatic fight all the way to the flag.

Lap after lap they traded top spot, with Derbyshire driver Harrington placing himself perfectly for a last-lap run on his rival. "Neither of us wanted to lead going into that final lap," said Harrington. "Because we knew that the second-placed man would have the advantage in the final corners."

Harrington timed his lunge to perfection and led the championship leader and double Donington victor over the line by a three-tenth margin. "It was too close to call could have gone either way", he added.

Fennymore, who is backed by Taylor Made Joinery, said: "I'm quite content with second, and happy to have made it safely to the end without risking my car."

On Sunday Harrington and Fennymore resumed their battle, with de Zille Butler joining the fight mid-race after a spirited dash through the field from the back of the grid. The decisive move came from de Zille Butler within sight of the chequered flag when he sliced up the inside of Harrington into the Russell chicane and held on for the win.

At the line Harrington trailed him by just five-hundredths, with Fennymore only half a second adrift of the victor to take third.