The fastest time to cycle 200 km on a tandem bicycle (mixed) is 6 hours 46 minutes 59 seconds, achieved by Lady JB Owen and Peter Giesin on the certified Moffat–Mosca road course along Colorado Highway 17, Colorado, USA, on 26 September 2026. All four of their mixed-tandem records were set in one continuous ride on a steel Co-Motion Java adventure-touring tandem without aerodynamic equipment. The record was officiated and ratified by the World UltraCycling Association (WUCA).