A brief course deviation did nothing to derail Amanda Spratt and her powerful Mitchelton-Scott team at the Santos Women's tour.
Spratt's new teammate Grace Brown won stage three at Stirling in the Adelaide Hills.
Fellow Mitchelton-Scott rider Gracie Elvin was fourth and Spratt took fifth to preserve her commanding 49-second overall lead.
With only Sunday's Adelaide street race to come, Spratt will successfully defend the overall title.
There was brief drama about 12km from the finish of the 104.5km Adelaide Hills stage from Nairne when the race went the wrong way.
But there was no breakaway and the disruption did not affect the stage result.
After Spratt won the second stage and took the overall lead, Mitchelton-Scott were keen to share the spoils.
"It was the team plan for me and Gracie to have a going the final here and it's really awesome after all the hard work that I get a victory myself," Brown said.
"It was a really hard day actually, much harder than I was expecting.
"I think my legs are feeling it from the last two days and there was a little bit of doubt, especially after the neutralisation I felt a bit dead, but I think everyone felt it."
Spratt was cautious about her overall lead, noting she crashed in the final stage last year, but she looks impegnable.
Tour Down Under race director Mike Turtur had sympathy for the women's tour officials after their stage went the wrong way.
"I am sure the commissaires would have managed the situation," Turtur said.
"It's an organiser's worst nightmare, it's happened to us previously, many years ago.
"It happened on the (Cadel) Evans race a couple of years back, it's one of those things.
"It's unfortunate, (but) it's normally dealt with in a way that no-one is disadvantaged, so I'm sure that happened today."