Joanna Rowsell and Katie Archibald will ride off for medals in the women's individual pursuit on day two of the Track World Cup in Manchester.
Fresh from winning team pursuit gold on day one in a world record, Rowsell was the fastest qualifier in the three-kilometre individual event, clocking three minutes 34.341 seconds.
The London 2012 team pursuit gold medallist will meet Rebecca Wiasak of Australia, who finished in 3mins 35.629secs, in the final of the non-Olympic event.
Archibald, riding for Scottish Cycling-Braveheart.com, was third fastest in qualifying in 3:37.215 and will meet Poland's Eugenia Bujak (3:37.671) in the ride-off for bronze.
Ireland's Caroline Ryan missed out on a medal ride in qualifying in fifth in 3:41.019, while Ciara Horne of Wales-Team USN was sixth in 3:42.413.
Olympic champion Anna Meares of Australia led the field in women's sprint qualifying.
Meares, who beat Victoria Pendleton in the London 2012 sprint final, completed the flying 200metres in 10.874 to advance to the head-to-head sprints as top seed.
Becky James, who won the world title in Meares' absence in Minsk in February, qualified in sixth in 11.161 and her British team-mate Jess Varnish was seventh quickest in 11.183.
Kristina Vogel of Germany, who won the team sprint on day one, was second in qualifying in 10.900.
Laura Trott, one of Rowsell's team pursuit colleagues, began her omnium campaign with sixth place in the opening discipline, the flying lap.
The Olympic omnium champion clocked 14.593 as Gillian Carleton of Canada won the first of six disciplines in 14.410.
James despatched China's Shi Jingjing comfortably in the first knockout round to advance to the best of three quarter-finals.
Varnish met Russia's Olga Streltsova and came from behind to win by half-a-bike's length.
Meares also advanced with ease in her first knockout round bout with Russia's Anastasiia Voynova.
One rider advanced at the first time of asking from the men's Keirin first round.
World champion Jason Kenny was in the opening heat of the event which begins behind a motor-paced Derny bike and held off the challenge of Josiah Ng of Malaysia to go through.
Ng and Ireland's Eoin Mullen, who was third, fell into the repechage.
The second heat included Ng's Malaysia team-mate Awang Azizulhasni, whose calf was pierced by a splinter the size of a pen the last time the World Cup series was in Manchester in February 2011.
Awang, riding for trade team Ysd Track Team, finished third in his heat as Edward Dawkins of New Zealand won, with Lewis Oliva (Wales-Team USN) second.