Great Britain's Sarah Storey set one of four world records in the opening session of Paralympic competition at the London 2012 velodrome.
In front of the Duke and Duchess of Cambridge, Storey clocked three minutes 32.170 seconds to advance to the gold medal ride-off of the women's C5 three-kilometre individual pursuit.
The seven-time Paralympic champion is set to meet Anna Harkowska of Poland, who qualified in 3mins 48.885secs, in the final.
Storey's compatriot Crystal Lane (3:59.220) will ride off against Fiona Southorn of New Zealand (3:52.695) in the race for third place.
There were two world records in qualifying for the women's C1-2-3 3km individual pursuit.
Zeng Sini of China, a C2 rider, clocked 4:19.841 and to book a meeting with Simone Kennedy of Australia (4:23.450) in the race for gold.
Germany's Denise Schindler (4:24.589) is poised to face Allison Jones of the United States (4:28.504) in the battle for bronze.
Australia's Jayme Paris set a world record of 4:40.123 but the mixed-classification event was not factored, and the C1 rider did not advance to the medal rounds, placing eighth.
There was a second Australian world record in the women's C4 3km individual pursuit, with Susan Powell qualifying quickest in 4:03.306.
Powell is set to meet USA's Megan Fisher (4:06.599) in the final, with Alexandra Green of Australia (4:07.152) and Canada's Marie-Claude Molnar (4:11.678) vying for bronze.
In the final event of the morning session, the men's blind and visually impaired 4km tandem pursuit saw two Australian pairings advancing to the race for gold.
Kieran Modra and Scott McPhee finished in 4:18.752 and are set to meet Bryce Lindores and Sean Finning (4:21.219) in the final.
The battle for bronze will be between Spain's Miguel Angel Clemente and Diego Munoz (4:24.539) and Ireland's James Brown and Damien Shaw (4:25.557).