The Junior and Senior classes were first away at 6.30pm, having been delayed slightly by a parked car in Ramsey and having cleared the roads at Ballig after a vehicle had deposited animal feed on the road!
James McCullagh (Junior 3) and Ryan McCay (Junior 6) were first away, as Michael Weldon's Yamaha R6 went on fire in Pit Lane, was extinguished and pushed away for further investigation.
After the Junior and Senior competitors had all completed one lap, the Speed Controlled Newcomers were sent on their way for one lap.
Then followed the Classics, Lightweight and Ultra Lightweight riders.
First to complete a lap was Ryan McCay on his Junior Suzuki lapping at 110.373mph. The chequered flag was shown to all competitors at 8.10pm, bringing the first full session to a close.
Fastest lap of the evening was set by Ryan McCay on his 600cc Suzuki Junior machine at 114.785mph, a lap time of 19 minutes 43.33 seconds.
Fastest in the Senior MGP class was Adam Barclay with a lap of 19m 51.32s a speed of 114.014mph.
Brian Mateer was quickest in the Lightweight on his 249cc Yamaha at 106.855mph, a time of 21m 11.15s.
In the Ultra Lightweight MGP, Kirk Farrow topped the leader board on his 400cc Honda with a speed of 99.727mph, 22m 41.99s.
The Newcomers A Class was topped by Ryan Kneen on his 600cc Suzuki with a lap of 21m 57.33s a speed of 103.109mph, whilst in the Newcomers C class, it was Ian Whitlow who headed the field at 96.282mph (23m 30.74s).
In The Classic categories, last yearís victor Ryan Farquhar led the field with a lap of 101.87mph, a time of 22m 13.26s on his Paton.
The Junior class was topped by Roy Richardson in a time of 22m 53.86s a speed of 98.866mph, whilst Ewan Hamilton, winner last year of the Lightweight Classic was quickest at 88.316mpg, his lap time 25m 37.98s.
There were fours incidents reported, Andrew Neil on his Senior machine came off at the 27th milestone and has injured his left hand.
Doug Snow on his classic machine came off at Alpine and has an ankle injury, while fellow Classic rider Dean Martin came off at Governorís Bridge but was OK, as was Paul Walker, who also came to grief at Governorís without injury.