O'Callaghan has come off a disappointing crosscountry season, which culminated in 18th at the nationals in Te Rapa two weeks ago, with the tarmac clearly his surface of choice.
"My PB for the half marathon is 1.07.30, so I'm keen to have a crack at that as part of the Auckland marathon but this was probably better buildup for Wellington. I wouldn't say I go in with huge hopes of doing well because you never can tell until you see who fronts on the day, but if I'm knocking on the door of a medal I'd be pretty happy."
O'Callaghan lacked competition and was disappointed in the no-show of national rep Aaron Pulford, who was sick, and Ramblers runners Iain and Kyle Macdonald. "Being on a Sunday probably meant the Mac twins had to choose between this and marathon training."
The race for the 10km senior women's title was far closer, with Ramblers runner Sally Gibbs adding to her burgeoning collection of titles with a superbly tactical win over well-performed Waikato runner/triathlete Mikayla Neilson (Hamilton City Hawks) and her New Zealand teammate for the world mountain running champs, Helen Rountree (Hamilton City).
Neilson, second at the national crosscountry champs, had a slight edge for most of the race before Gibbs hit the lead in the final lap and finished strongest, heading off Neilson by 30sec.