Tuesday's evening practice is held in slightly overcast conditions and John McGuinness riding a Honda in the Superbike class records a lap at an average speed 128.492 mph to lead practice. The practice times for Supersport and Superstock classes are both led by New Zealander Bruce Anstey recording lap times of 121.33 mph (Yamaha) and 125.34 mph (Suzuki) respectively. The sidecar class is dominated by Nick Crowe/Dan Sayle riding a 600cc Honda outfit recording a lap of 114.208 mph. The sidecar of Dave Molyneux / Rick Long stopped on Bray Hill on the first Sidecar TT practice lap with continuing mechanical problems. At the Quarterbridge, Karsten Schmidt slipped off during Tuesday evening practice, William Dunlop and Roger Maher at the Waterworks and Conor Cummins and Alan Chamley collided at Laurel Bank.