Track Cycling World Cup: GB's Joanna Rowsell wins second gold
Britain's Joanna Rowsell won her second Track Cycling World Cup gold medal in two days as she beat Australian Rebecca Wiasak in the individual pursuit.
Scotland's Katie Archibald was third as Rowsell added to the gold she won in the women's team pursuit on Friday.
Becky James defeated Olympic champion Anna Meares for bronze in the women's sprint but GB team-mate Jason Kenny missed the keirin podium in Manchester.
France's Francois Pervis won the keirin with world champion Kenny fourth.
Ireland's Martyn Irvine won the men's points race in impressive style, sprinting to collect the deciding points at the finish, as Britain's Owain Doull finished fourth.
Rowsell expressed delight at laying some demons of 2013 to rest, having won team pursuit gold in a world-record time alongside Laura Trott, Dani King and Elinor Barker a day earlier.
"I've had a bit of a nightmare summer with illness and injury. This weekend was a really big target for me and all the hard work has paid off," the 24-year-old Olympic gold medallist told BBC Sport.
Archibald, the lone Scottish competitor racing for trade team Braveheart at this World Cup, perfectly paced her ride to overhaul Poland's Eugenia Busak for bronze. The 19-year-old had already won silver in Friday's women's scratch race.
"That was a fantastic ride by Katie," said Rowsell. "[Busak] was four seconds up at one point but I thought 'keep the faith'. She's only 19, she's at that age where she's constantly improving. She's a really exciting young rider, which is what we need now."
In the women's sprint, Germany's Kristina Vogel - who lost to James at this year's World Championships final in Belarus - turned the tables on the Welsh rider in their semi-final before defeating Hong Kong's Sarah Lee for gold.
Lee had earlier beaten Australian Meares, who is competing in her first major event since winning Olympic gold last year, in a semi-final photo finish.
James, who recently spent a month competing on the Japanese pro women's keirin circuit, won her best-of-three bronze medal ride-off against Meares in straight rides.
"I'm so chuffed," said James. "To have this many races today and to get a bronze medal, I'm really happy."
This World Cup marks one of very few chances for rivals like James and Meares to meet before the World Championships in Colombia in February.
There is one other World Cup event - in Mexico next month - scheduled before the Worlds, though world governing body the UCI says it will confirm a third World Cup date in the next week.
Three-time Olympic champion Kenny, 25, must use those remaining events to regain ground on his keirin rivals.
Having won the world title in February, he breezed through the qualifying rounds here but left himself too much ground to cover from the back in the final.
"Right from the word go it started going pear-shaped and I never got in the race," Kenny told BBC Sport.
"We just looked at the video now and there were a few split-second moments where I could have made some inroads, but I missed it."
In the points race, Irvine initially appeared off the pace following his ride in the individual pursuit earlier on Saturday - but he recovered to beat Denmark's Lasse Norman Hansen by 20 points to 17, earning the winning points in the last sprint.
"I was probably the laziest guy in the first half of the race, but I seem to rise to the top the nastier the race gets," said the 28-year-old, who is the world champion in the scratch race, another non-Olympic endurance event.
Jon Dibben finished fifth overall for GB in the men's omnium, won by Belgian teenager Jasper de Buyst, while Andy Tennant was sixth in the men's individual pursuit.
Olympic champion Trott lies sixth overnight in the omnium, finishing Saturday's racing with second in the elimination race behind Australia's Annette Edmondson.
Sunday's concluding action includes Kenny in the men's individual sprint, James in the women's keirin and Trott in her remaining three omnium events.