Ulsterman Michael Dunlop increased the tempo in the Superbike class at the Classic TT as he continues to lead the way during practice on the Isle of Man.

The Ballymoney rider lapped at 122.650mph from a standing start on the Team Classic Suzuki XR69 to set the fastest lap overall so far this week, despite Clerk of the Course Gary Thompson reporting damp patches under the trees.

Tuesday's practice session had been under threat due to poor weather but a late decision was made to continue as planned after low mist reported on the Snaefell Mountain earlier in the day finally lifted.

New Zealand's Bruce Anstey was an early retirement at Barregarrow on his opening lap on the Valvoline Padgetts Yamaha YZR500.

Dean Harrison went second fastest on the Silicone Engineering Kawasaki at 121.101mph as he edged out British championship contender Michael Rutter, who clocked 120.763mph on the Harris Yamaha ridden last year by Ryan Farquhar.

Mistral Kawasaki's James Hillier was fourth quickest (120.336mph) ahead of Ivan Lintin on the Devitt RC Express Kawasaki, who set his fastest lap of the night at 120.160mph.

Manx rider Dan Kneen completed the top six with a lap of 118.112mph on the Mistral Kawasaki.
William Dunlop, riding a Kawasaki ZXR750 for Herheim Racing, was 11th fastest at 115.557mph.

In the Lightweight Classic TT session, which ran concurrently with the Superbikes, Welshman Ian Lougher improved marginally on Monday evening's time to top the board again at 113.893mph on his second lap of the session on the LayLaw Racing Yamaha.

Morecambe's John McGuinness, fastest in the Bennetts Senior session on Monday, was an early retirement on the Winfield Paton at Ballacraine.

As the weather began to close in, most of the competitors managed to complete some vital qualifying laps and it was last year's winner Harrison who topped the leaderboard on the Black Eagle MV Agusta at 107.041mph from McGuinness's team-mate on the Paton, Conor Cummins, who managed a speed of 104.857mph.

Jamie Coward on the Ted Woof Norton was next at 104.628mph ahead of Alan Oversby on the Davies Motorsport Honda (103.815mph).

Rutter continued his dominance of the Okells Junior Class on the Ripley Land Racing Honda, setting the only lap in excess of 100mph in the class last night at 100.182mph to take the top spot from Northern Ireland's William Dunlop (Davies Motorsport Honda), who lapped at 96.885mph.

Michael Dunlop, filling in for the injured Lee Johnston in the Black Eagle Racing team, was sixth on the MV Agusta (93.244mph).