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.
Football: 2025 Hospital Cup to begin this weekend
Prelim rounds of that and Junior Cup to take place (Fixtures: 5-6 Apr)
Cycling: Ruby Oakes to make Women's WorldTour debut?
18-year-old in provisional startlist for Tour of Flanders this weekend
Bowls: Isle of Man bound for world indoor championships
Two players to fly Manx flag in Scotland
Athletics: Astin confident of heading to next level performances
Island athlete smashed Manx record and earned GB spot in less than a week
Nathan Harrison confirms 2025 TT plans
Manxman to ride for Honda satellite team