In addition, the expected wet weather may not set in until midday when, barring a few stragglers, most of the competitors will be finished.
As the major fundraiser for the Harriers, this year's event will feature a first time Corporate Relay, where teams of four will run one 5km lap each.
The full course encompasses the Dublin, City and Cobham bridges.
Race Timetable
6.30am: Pak n Save Marathon Walk
7.30am: Pak n Save Marathon Run
8am: Property Brokers Half Marathon Walk
8.40am: Property Brokers Half Marathon Run
9am: Let's Go! Corporate Relay
9.30am: Unichem Whanganui 10km
9.40am: The Hits 5km
2pm: Prize Giving at Moutoa Gardens.