Carrick Rangers went 3-0 up through goals from Danny Gibson, Joe Crowe, and Paul Heatley before Larne responded with Tiarnan O'Connor's early second-half goal and Dan Bent's late consolation.
Meanwhile, Coleraine strengthened their title challenge with a 1-0 victory over Ballymena United, thanks to Will Patching's first-half goal at the Coleraine Showgrounds.