Cecilia Flori, of Te Pahu, was a close second in 2h 51s 54s. The Rotorua Marathon was her last race before heading overseas for the Western States Endurance Run, a 160km ultramarathon in California.
Newtown's Letha Whitham was the third woman in 3h 4m 31s.
In the half marathon, Jonathan Jackson, of Lynfield was first in 1h 13m 44s while Pukekohe's Lisa Cross was the first woman in 1h 22m 30s.
Rotorua Marathon Results
Marathon:
Men: 1st Ciaran Faherty (2:25:39), 2nd Blair McWhirter (2:26:40), 3rd Michael Voss (2:27:35), 4th Regan Bones (2:36:51), 5th Patrick McKenna (2:38:22).
Women: 1st Alice Mason (2:51:17), 2nd Cecilia Flori (2:51:55), 3rd Letha Whitham (3:04:31), 4th Frances Wardle (3:20:11), 5th Amanda Bethell (3:20:59).
Half Marathon:
Men: 1st Jonathan Jackson (1:13:44), 2ndMatt Kerr (1:22:13), 3rd Michael O'Sullivan (1:25:22), 4th Scott Van Dyk (1:25:29), 5th Martin Ferry (1:25:39).
Women: 1st Lisa Cross (1:22:30) 2nd Sabrina Grogan (1:30:37), 3rd Danielle Sansonetti (1:32:37), 4th Cath Cheatley (1:36:30), 5th Catherine Hauser (1:41:46).