The Olympic BMX course is expected to suit New Zealand's leading riders.
Marc Willers and Kurt Pickard will contest the quarter-finals of the men's event tonight, with Sarah Walker to line-up in the women's semi-finals tomorrow night.
National BMX coach Ken Cools says the course has mellowed from that which was used in the test event last year.
The top two ranked riders from each quarter-final will advance to the semi-finals after three motos, and they'll be joined by the third and fourth ranked riders after a further two motos.
Lisa Carrington will line-up in the first of what are expected to be two Olympic kayaking final, at Eton Dorney, tonight.
The reigning K1 200 world champion will pair up with Erin Taylor to contest the K2 500 medal race.
Ms Carrington says racing in the K2 first helps her get the nerves out of the way. Her heat in the K1 200 is tomorrow night.
Sailors Jo Aleh and Polly Powrie will race for gold in the women's 470 class after finishing second in race nine and 18th in race ten.
Aleh and Powrie are level on points with Great Britain, and whoever finishes ahead of the other in Saturday's medal race will claim gold.
- RHEMA NEWS/Newstalk ZB