Great Britain won gold and silver medals to make a strong start to the Para-Cycling Track World Championships.
Multiple Paralympic champion Sarah Storey posted a new British record of 37.371 seconds to claim the C5 500m time trial on day one in Los Angeles.
The other British success saw Aileen McGlynn, piloted by Helen Scott, finish second in the Women's B/Vi 3km pursuit.
"It was good to get a personal best as it shows I'm notching away towards the world record," said Storey.
McGlynn and Scott were up against Ireland's Catherine Walsh and Francine Meehan in the finals and the British pairing started the race better.
But they lost their advantage in consecutive laps to finish second behind the Irish.
"For a few seconds I thought 'we can have this' but I think we got it all out in the first ride," said Scott.
"We went off well trying to hold the same splits but we were a little slower each time."