"We've got a good, long run-in period.
"It does help being on the [athletics] executive, but that's the way of the world. It's who you know.
"But we wouldn't get it if we didn't have a reputation for running things well."
Athletics NZ asked McNab if Wanganui could host and he made careful deliberations, booking Cooks Gardens for both weekend dates to make sure they can avoid clashes with NCEA exams and other local events.
He has also held discussions with Mayor Annette Main to garner support, and Tranzit Coachlines in Wanganui about possibly transporting South Island teams from Wellington Airport.
It will be the third time Wanganui has hosted these championships.
"The first was in 1996, after the track was built. I vowed I wasn't going to do another," said McNab of the logistical challenge.
The next time was 2007 and the "no vacancy" sign went up in town that weekend, as then-New Zealand Secondary School's Sports Council executive Peter Sharp discovered when he arrived on the Sunday. "He had to stay in Hawera, it's the nearest bed he could find," McNab said.
Wanganui athletes have often risen to the occasion of performing at home.
In 2007, the Collegiate 4 x 100m team won for the third successive year, while the Year 9 girls won their road race at Kowhai Park.
Angus Watson and Beatrice Kearney were named in the national road race team.
Wanganui also hosted the North Island secondary schools championships from 1998-2000.