They join 32 others before Court of Arbitration for Sport, some decisions could be reached Wednesday
Fifteen more Russians have appealed to the Court of Arbitration for Sport, seeking to be admitted to the Pyeongchang Olympics.
They join 32 Russians who appealed a day earlier. John Coates, who heads the court, says decisions on some appeals are expected Wednesday.
The Court of Arbitration for Sport says the 13 athletes and two coaches include cross-country skiing gold medallist Alexander Legkov and skeleton gold medallist Alexander Tretiakov.
They were all banned last year for doping at the 2014 Sochi Olympics, but those verdicts were overturned by CAS last week. They are now seeking to force the IOC to invite them to the Pyeongchang Games.
The 32 who appealed on Tuesday failed to pass mandatory International Olympic Committee vetting, which was imposed as a result of Russian doping at the 2014 Sochi Olympics.
The International Olympic Committee expects 168 Russian athletes to compete under the neutral banner of "Olympic Athletes From Russia." Hundreds more have been barred, and many have gone to court seeking entry, causing last-minute chaos.
The court didn't say how quickly it will issue decisions.