But, despite his speed, Dawkins then fell in the quarter-finals to Williams, who had earlier upset another team sprint world champion in Ethan Mitchell.
Williams showed that effort was no fluke when he repeated the dose against Dawkins, who won the first in the best of three quarter-final rides. Williams answered the call to dominate the second ride and then made a critical jump in the decider and held off the final charge by Dawkins.
"There's a lot of fast riders here this week so it is going to be a tough battle in the match racing," a defeated Dawkins said.
Another promising Kiwi, 18-year-old Regan Gough, impressively won the men's 40km points race. Gough, who won two junior titles at the recent world championships, put a lap on the field early and went on to win with 46 points from Aaron Gate on 32.
Australian Ashlee Ankudinoff continued her winning way to claim the women's 10km scratch race, rolling over fellow Aussie Rebecca Wiasak with leading Kiwi Jaime Nielsen in third.
In other racing, Australian Caitlin Ward was fastest qualifier in the women's sprint in 11.368 ahead of New Zealand champion Stephanie McKenzie (11.498), while Manawatu's Emma Cumming was fastest in junior women in 12.008.
Outstanding Southland prospect Nick Kergozou was fastest in
qualifying in the junior men sprint in 10.631, progressing through to tonight's semifinals with Lewis Eccles (Taupo), Sam Buckner (Christchurch) and Cody Simpson (Manawatu).
Auckland's Bryony Botha won the junior women elimination while talented Palmerston North rider Campbell Stewart took out the junior men.
The event at the Avantidrome is the first to offer qualifying points towards the 2016 Rio Olympics. Tonight's action features the deciding races in the sprint competition, junior women, junior men and elite men scratch races, elite women points race, finishing with the madison.