Simon Skillicorn won Saturday's Glen Mona Horse shoe by over four minutes.
Tom Cringle, who is his nearest rival in the league this year, was second, and Ian Gale was third.
Cal Partington claimed the women's race ahead of last year's winner Rose Hooton. Bridget Kaneen was third.
Michael Dunlop receives MBE in King's Birthday Honours
Most successful TT rider in history recognised for services to motorcycle racing
Football: IoM women looking forward to Kendal Town test
Manx squad to welcome Cumbrian opponents to The Bowl this weekend
FC Isle of Man to face Brackley Town in first pre-season friendly
Ravens to host National League opposition in Ramsey
Handball: Isle of Man becomes England talent pathway
System could help local players compete internationally in future
Athletics: David Mullarkey in GB squad for European team championships
Island athlete to contest 5,000m race in Madrid later this month
