The Court of Arbitration for Sport (CAS) said there was "insufficient" evidence to prove doping offences at the Sochi 2014 Games for 28 athletes while in 11 other cases it confirmed doping but reduced the bans to just the February 9-25 Games in South Korea.
A total of 22 North Korean athletes will compete in the PyeongChang Games, covering 3 sports and 5 disciplines.More news: European banks pay $46.6 million to settle US 'spoofing' charges
CAS revealed that it will give reasoned decisions for overturning the bans in due course.
In making its decision, the CAS also reinstated the results of the athletes in Sochi.
Those whose results have been reinstated at the Sochi 2014 Olympics include skeleton gold medalist Alexander Tretiakov and cross-country ski gold medalist Alexander Legkov.
"We have stated many times that certainly, we will continue supporting our athletes through all possible channels in any steps aimed at defending their rights", the spokesman noted. The IOC still has to approve the decision regarding the medals.
On December 5, the International Olympic Committee disqualified the entire Russian team from the Games in PyeongChang in the wake of a probe into alleged doping violations by the country's athletes and sporting officials.More news: Leicester go away Riyad Mahrez out of squad as he `clears…
In a separate CAS case, another 11 Russians lost their appeals against sanctions for committing doping violations.
Russian Federation has repeatedly denied any state involvement in state-sponsored doping. "Therefore, the International Olympic Committee will analyse the reasoned decisions very carefully once they are available and consider consequences, including an appeal to the Swiss Federal Tribunal".
The Russian government vehemently denies ever supporting doping.
Walden told AFP the ruling was "unfortunate" and suggested it "provides a very small measure of punishment for some athletes but a complete?get out of jail free card? for most".More news: Samsung Galaxy S9 battery details leaked, 'S9 Active' likely underworks
Chudinov was fifth in the men's skeleton in Sochi and later became a coach for the Russian national skeleton team.
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