Sutton finished the 162km event in 15hr 57min and said it was one of the quickest times he had run for a race of that length although the relatively flat roads around Mt Taranaki meant it was not too hard on the body.
The race started at New Plymouth at 5pm on Friday and, 12km into the race, Sutton got a fright when just out of Inglewood.
''I was just running along and saw a car coming towards me. He had his hand out of the window and then he threw down his hand. He had thrown a bottle straight out on to the road,'' Sutton said.
''It sprayed glass on to me and cut my arm and cut my stomach. Not badly but it scared me a bit. For the next couple of kilometres I was running on adrenaline.''
The cuts were not bad enough to slow down Sutton, who quickly took a comfortable lead and no-one could get near him.
Sutton said, apart from that incident, the drivers on the road were all courteous, and drivers of milk tankers - of which he saw plenty - were helpful and he never felt in any danger.
He was hoping for a time of under 16hr so completed that successfully.
Second home was another Dunedin runner, Greg Yee, 2hr behind Sutton.
Veteran Jim Kearse, also from Dunedin, completed the race in 30hr.
The race also includes teams and all up has about 100 competitors.
Sutton does not have much time to put his feet up as he will now look to focus on the Kepler Challenge early next month, to conclude his racing for the year.
