"I thought she'd come by me sooner on the run and when she didn't, I was trying to dig deep," Leary admitted. "I heard her behind me at the top of the quarry track and she just trotted up past me and off she went. I haven't been able to run much since Xterra and I was winging it today - I was pretty tired on the second lap of the run."
Australian Deanna Begg was third in the women's race, just 24s behind Leary, but ahead of Nelson's Fleur Lattimore and another Australian, Kim Beckinsale.
The men's field had to chase Ussher from the start, although the endurance guru had some unlikely company in the paddle around Lake Okareka.
Australian veteran John Jacoby, a three-time Coast to Coast winner in 1988, 1989 and 1993, showed he'd lost none of his renowned paddling strength, sticking rigidly to Ussher's wake for the entire 8km.
Although he faded in the bike, Jacoby had the satisfaction of finishing as highest-placed Australian, his 2:57:38 time good enough for eighth.
Currie worked hard to pick up Nelson's Trevor Voyce out of transition, which proved a key move.
"I jumped on the bike and just felt like rubbish - it took ages to get into it but [I was] lucky I had Trevor riding with me to keep me honest," Currie said. "Without him there, I would've been gone."
Clark has worked extremely hard on his mountain biking in recent months, enabling him to move through the field.
"I was seventh coming off the bike last year and second this year, which just showed the work I've been doing," Clark said. "I just couldn't hold on to Braden when he came past me on the run though - he was just too quick."