The British women's curlers suffered a major blow to their hopes of reaching the semi-finals with a third defeat.
Martin won Olympic gold for Great Britain in 2002
Rhona Martin's team, who earlier beat Italy, lost 8-4 to Norway, while the men closed in on the last four with a dramatic 6-5 win against Switzerland.
Norwegian skier Kjetil Andre Aamodt won the men's super-G and Croatian Janica Kostelic retained her combined title.
American Shani Davis claimed the men's 1,000m speed skating and South Korea's Ahn Hyun-soo won the 1000m short track.
Jin Sun-yu and Choi Eun-kyung led a South Korean one-two in the women's 1,500m short track, while Briton Sarah Lindsay missed out in the semi-finals.
Earlier, Austria's Thomas Morgenstern clinched the big hill ski jump gold and Russia were victorious in the women's cross-country skiing 4x5 km relay.
In the biathlon, German Kati Wilhelm claimed the women's 10km pursuit title and French biathlete Vincent Defrasne triumphed in the men's 12.5 km pursuit
DAY EIGHT EVENTS
Kjetil Andre Aamodt and Janica Kostelic became the first Alpine skiers in Olympic history to win four career golds after retaining their respective titles.
Defending champion Aamodt of Norway, who also triumphed at the 1992 Games, won his third Olympic super-G title in a time of one minute, 30.65 seconds.
Austrian star Hermann Maier took silver, while Swiss Ambrosi Hoffman was third.
Aamodt won his fourth career gold and extended his record haul of Alpine medals to eight despite injuring his knee when finishing fourth in the downhill six days earlier.
And Maier was completing a comeback from a serious mortorbike crash which saw him miss the 2002 Games.
The event was restarted from scratch after a three-hour delay caused by heavy snow and fog.
Britain's Finlay Mickel went off fourth, and clocked 1:32.10 to put himself temporarily second but he was soon overtaken and slipped to joint 22nd.
Team-mate Roger Cruickshank finished 37th, equalling his placing in last week's downhill
Frenchman Pierre-Emmanuel Dalcin had led before the competition was suspended, but missed a gate when asked to race again.
Dalcin, one of 17 competitors from the 63-strong field to race first time around, He was clearly upset and gestured angrily.
American star Bode Miller was another who failed to finish.
Croatian Kostelic, who won three gold medals at the 2002 Games, successfully defended her women's combined title with a brilliant downhill run.
Austrian Marlies Schild, who led overnight after two slalom runs, finished second with Anja Paerson of Sweden in third.
Great Britain's women curlers were left struggling to reach a semi-final spot after suffering their third defeat of the tournament against Norway.
Earlier, Rhona Martin's team got back in the winning groove with a 9-5 win over outsiders Italy, but could find no way past the Norwegians as they lost 8-4 in nine ends.
But the defending champions were handed a lifeline by Canada's shock 5-2 defeat in the morning.
Britain share fourth place in the table with Canada and must win both their remaining matches against Japan and the US in order to make it to Tuesday's tie-breaker for a semi-final place.
Elsewhere, Sweden beat surprise package Japan 8-7 in the evening to become the first team to qualify.
The British men's curlers effectively booked their place in the semi-finals with a last-gasp 6-5 win against Switzerland.
David Murdoch's side staged an nail-biting fightback from 5-3 down to clinch victory with the last stone in the final end.
They now have six wins from seven matches and stand clearly out in front of the 10-team round-robin league.
The packed curling venue was in uproar moments later when underdogs Italy edged a 7-6 final stone win over favourites Canada.
In short track speed skating, South Korean Ahn Hyun-soo claimed his second gold medal in Turin with victory in the men's 1,000m
Ahn, who won the 1,500m last week, nudged ahead of compatriot Lee Ho-suk, while American Apolo Anton Ohno had to settle for bronze.
Ohno, who took silver in the 1,000m at Salt Lake City, came third and was visibly disappointed having scrapped with the two South Koreans for the last three laps.
In the women's 1,500m, favourite Jin Sun-yu and Choi Eun-kyung led a one-two South Korean medal charge, with Chinese 500m champion Wang Meng taking bronze.
Three South Koreans crossed the finish first but Byun Chun-sa was disqualified for impeding, giving Wang her second medal.
Briton Sarah Lindsay failed to make it past the semi-final stage.
In speed skating, American American Shani Davis won the men's 1,000m in convincing style.
World record holder Davis crossed the line in 1:08.89 with compatriot Joey Cheek following up his 500m gold with a silver and Dutchman Erben Wennemars squeezing into bronze.
Davis became the first black athlete to win an individual gold medal at the Winter Olympics.
Andre Lange set a track record when he steered his Germany I sled to a narrow lead after the opening two runs of the two-man bobsleigh competition.
Lange, the four-man champion in Salt Lake City, and brakeman Kevin Kuske clocked 55.28 seconds on their first run down the Cesana track.
The Germans finished the day with a combined time of 1:51.01 as Canadians Lascelles Brown and Pierre Lueders cut their lead to just 0.06 seconds on the second run.
Martin Annen and Beat Hefti in Switzerland I were third, 0.20 seconds off the pace ahead the medal-deciding final two runs are on Sunday.
Lee Johnston and Dan Humphries were also in action, lying 12th out of 28 teams with a time of 1:52.06.
Kati Wilhelm produced some sharp shooting and fast skiing to lead a German 1-2 in the women's 10km biathlon pursuit despite a snowstorm and swirling winds.
Wilhelm, becoming the first female biathlete to win three Olympic golds, only incurred one penalty after hitting 19 of her 20 targets to finish in 36 minutes, 43.6 seconds.
She was 1:13.6 in front of compatriot Martin Glagow, who took silver ahead of Russian Albina Akhatova.
France's Vincent Defrasne outsprinted defending champion Ole Einar Bjoerndalen of Norway to claim the men's biathlon 12.5km pursuit.
Desfrasne was 1.8 seconds behind Bjoerndalen going into the final 60m ascent, but managed to sneak past the five-time gold medallist on the outside of the home straight.
The 28-year-old French soldier finished the five 2.5km-long circuits in 35 minutes, 20.2seconds, 2.7 seconds ahead of Bjoerndalen.
Bjoerndalen had been hoping to match the all-time record of Winter Olympic golds, currently held by Norwegian cross-country skier Bjorn Daehlie, with eight.
Germany's Sven Fischer took the bronze.
Russia won the women's cross-country skiing 4 x 5km relay for the third time in the last four Games.
Evi Sachenbacher Stehle, controversially suspended at the start of the Winter Olympics after tests showed a high red blood cell count, helped defending champions Germany take silver.
Outsiders Italy delighted the home fans at Pragelato with an unexpected bronze.
Norway, the reigning world champions and overwhelming pre-race favourites, trailed in fifth and are still seeking their first gold medal of the Turin Olympics in cross-country skiing.
In ski jumping, Thomas Morgenstern of Austria won the individual large hill gold medal, while compatriot Andreas Kofler claimed silver and Norway's Lars Bystoel took bronze.
In the men's ice hockey preliminaries, Switzerland pulled off a major upset by beating defending champions Canada 2-0, while former world champions Slovakia stunned 2002 silver medallists USA 2-1.
Other matches are: Kazakhstan 0-1 Russia, Italy 3-3 Germany, Sweden 6-1 Latvia and Czech Republic 2-4 Finland.