There was a dramatic finish to the solo support event on the Billown circuit on Saturday evening.
In the end, John Burrows pipped Mark Parrett for the honours by just .295 seconds.
He completed eight laps in 19 minutes, 23.39 seconds.
Stephen Oates, racing a 750 Suzuki, was third overall.
After the victory, Burrows told Chris Kinley he was tired but thrilled.
Roy Richardson was the winner of the 600cc class with Mark Buckley the runner-up and Simon Fulton in third.
Football: Braddan and Rushen United progress in Ecap FA Cup
Poor weather once again heavily disrupts local fixtures
Rugby: Ramsey take early lead in Counties 3 ADM minor conference
Celts win 'old firm' clash in Manx Cup
Hockey: IoM Ladies A march on in EH Championships
Bacchas B keep up perfect run in Men's Division One
FC Isle of Man's trip to Barnoldswick Town postponed
Travel disruption and player welfare behind decision
Hockey: Bacchas Men's B looking to keep up flawless league form
Two national teams in EH Championship action in this weekend's fixtures