Local knowledge paid dividends in very difficult conditions during the Manx Radio sponsored races for 650/250cc machines and the 125/400cc category, landing popular victories to home grown Isle of Man racers Dave Moffitt and Billy Smith respectively.
It was Phil Harvey that set the early pace on his Honda RS250, reaching 151mph on the Sulby straight on the diminutive 2 stroke machine, but by the time they reached Ramsey, the extra torque of the 650 4 strokes of Moffitt's Suzuki and Joe Phillips's Yamasaki was telling.
However, Harvey was far from finished, and he found himself leading again on lap 2 after overhauling Moffitt on the road and Phillips opting to stop early for fuel, promoting Shaun Anderson to 3rd spot.
Harvey's task was a thankless one though, and after all the pit stops had been completed, despite both Moffitt and Phillips receiving time penalties for speeding in the pit lane, the duo hunted him down over the remainder of the race and by the time they went down the Glencrutchery Road to start the final lap, it was Moffitt leading with Phillips breathing down Harvey's neck, just 0.6 seconds behind.
At the flag then it was 45 year old Moffitt who took victory with an average race speed of 107.447mph, from Phillips with Harvey a fine 3rd, the only 250cc runner to appear in the top 10.
The 125/400cc Lightweight race which ran concurrently with the Supertwins, was dominated by the 400cc 4 stroke machines.
The race order was fairly static too, with Billy Smith winning from Alistair Haworth, both on Yamahas, and Ross Johnson in 3rd on a Kawasaki. Smith, having negated the need for a pit stop by running a 24 litre petrol tank, was able to back off on the last lap to bring his machine home in a race winning time of 1h 27m 13.58s. The only 125 2 stroke finisher was Sarah Boyes on her RS Honda in 20th position.
By Graham Edwards