Stephanie Morton has again issued a serious challenge to cycling superstar Anna Meares' bid for yet another Australian title.
Morton became the first woman to break the 11-second barrier in the sprint at an Australian championships with a stunning qualifying ride in Adelaide Super-Drome on Thursday night.
Morton, who was the last cyclist to down the revered Meares in a sprint final at the national titles with her win in the 2013 final, clocked 10.937s in the opening round of qualifying.
Since then, Meares has prevailed and on Friday night she will seek her ninth Australian sprint crown, and her 35th national title overall.
Morton, who partnered Meares in a team sprint triumph on Wednesday night in Adelaide, will meet Kaarle McCulloch in a semi-final on Friday night.
Meares will race Madison Janssen in the other semi-final.
In the men's sprint, world No.1 Matt Glaezter was the fastest of eight qualifiers for Friday's quarter-finals, with Shane Perkins and Patrick Constable also advancing.
The second day of racing saw Sam Welsford (WA) and Sydney's Ashlee Ankudinoff crowned as 2016 individual pursuit national champions. Victorian Caitlin Ward broke through to claim a maiden 500m time trial title.