Unfortunately, competitive tandem track racing these days is limited to paralympic type events and classifications where one of the riders must have a physical impairment OR demonstration events like the annual Tandemonium at Trexlertown, PA.

UCI / IOC / USCF have all dropped the tandem events after a series of fairly serious crashes, the OIC dropping it first after the '72 Olympics which pretty much took the wind out of the sails of track racing given the lack of an international marque event. The USCF and UCI seemed to drop it in the mid-90s.