Bumble says most competitors -- from all countries, not just the U.S. -- have seen a 50% spike in swipes since the games started a little over a week ago. Translation: someone's gotta help you "stretch" on your off days, right?

That mostly applies to athletes who love going downhill -- Bumble says the alpine skiers are getting more hook-up action than their fellow Olympians. According to the app ... hockey players rank second, freestyle skiers and cross-country skiers tie for third. Snowboarders and ski jumpers bring up the rear.

Ya won't get crucial stats like that on NBC!