Bayne (49) wiped 47min off Brendon Keenan's 2011 160km record at the Round the Mountain relay, winning in 15hr 11min 5sec.
He was almost 4hr faster than Wayne Botha (Auckland), who finished second, while Daniel Woods (Auckland) finished third a further 35min off the pace.
Dedicating the race to his late twin sisters-in-law Michelle and Stephanie Ashby, who had cystic fibrosis and died within the past two years, Bayne was pleased with the result.
''I was trying to break the 15hr mark but that was probably a target that was always a major stretch, but I was pretty chuffed to get so close,'' he said.
''It all came together well for a change. It's funny running those big, long runs. It's not often that everything lines up quite so nicely.''
Bayne also won the Naseby ultramarathon in August, finishing in 16hr 48min 24sec, more than 2hr faster than Dunedin's Glenn Sutton.
Having started at 5.30pm on Friday evening, he had a few hours of daylight, before running through the night and finishing at 8.41am on Saturday.
''It was a wee bit harder than I expected, probably due to the conditions,'' Bayne said.
''There was a big sea breeze around the west side of [Mt Taranaki]. It just hammered the runners for 50km into a head wind, so that was tough.
''From 10pm to 2 or 3am, you are just battling a constant head wind. It knocked out three runners.
"The guy [Keenan] who got second behind me, that's what knocked him about so badly. It just took the stuffing out of him.''
Bayne, who pocketed $1000 for the win, will know next month if he has done enough to make the national team for the 24-hour world championships in Turin next April.
Athletics New Zealand will calculate his approximate 24-hour time off the back of his 160km efforts before naming the team, but Bayne was confident he would be picked.
The record-breaking runner is contemplating entering the 100km Big Easy Marathon in Wanaka in January, but for now he is just concentrating on recovering from more than 15 hours on his feet.
''It [body] is pretty bashed around. The calves are shattered, the hamstrings and quads are pretty locked up and tight. My feet are really sore. I'm hobbling around a bit.''
In memory of his sisters-in law, Bayne is raising money for the Cancer Society and Cystic Fibrosis New Zealand.
Donations can be made at www.givealittle.co.nz/cause/runfund.
- Robert van Royen
