World track pursuit silver medallist Jesse Sergent and 2009 national road champion Jack Bauer ride in the elite men's time trial tonight (NZT) but it is a very strong field headed by four-time world and Olympic champion Fabian Cancellara and other top time triallists Tony Martin (Germany), David Millar and Olympic pursuit champion Bradley Wiggins (both Great Britain), American star prospect Taylor Phinney and current world pursuit champion Jack Bobridge (Australia).
The conditions could play a significant role and Villumsen found the conditions more trying than she anticipated, although she didn't change her approach.
"The first lap in the wet was a little bit tricky because you never know how fast you can take the corners but the second lap was okay because you knew and none of them were dangerous,'' she said.
"It was harder than I thought it would be. That was to my advantage. It was a strong head wind which was pretty bad, it seemed like a climb.
"I didn't change my tactics, though. I always ride the same - not really with tactics but to ride as fast as I can and see how long I can last for.
"After the first lap people were cheering a lot more and so you knew they had been told of my time but apart from that it was not easy to understand how the others were doing behind me.''
Villumsen, who rides for the Dutch AA Drink professional team, set the best time of the day until the penultimate ride from 2004 world champion Judith Arndt from Germany, who blitzed the second lap after being only the eighth fastest at the first time split half way around the first lap.
Villumsen has four days break before she competes in the road race as the sole New Zealand representative.
Earlier, Oram surprised himself with his medal-winning performance in the junior men's race over the same 27.8km course.
The 18-year-old former Westlake Boys rider was off as the 10th rider in a 55-strong field, producing a stunning effort to clock 35:07.68 to claim the lead. He had to wait nervously for two hours before his time was beaten.
"It was pretty nerve wracking that was for sure,'' Oram said. "I really needed to go to the toilet but they held me there as the leader.
"I came in here thinking that a top-10 performance would be great. And if I was lucky then top-five would be an absolute dream. So to get a silver medal is pretty crazy. It's not really sunk in yet.''
It took a huge effort from hometown Dane Mads Wurtz Schmidt to edge out Oram by just four seconds to win gold.
Results:
Elite women time trial, 27.8km: Judith Arndt (GER) 37:07.38, 1; Linda Villumsen (NZL) 37:29.11, 2; Emma Pooley (GBR) 37:31.51, 3; Tara Whitten (CAN) 37:33.54, 4; Clara Hughes (CAN) 37:44.17, 5.