08:10Triathlon - In House - 2019 Red ButtonTriathlon World Series: Hamburg: Mixed RelayBBC Sport Duration: 1 hour, 59 minutes Sun 7th Jul 2019, 08:10 on Red Button HDCoverage of the mixed relay race – an exciting concept that will make its Olympic debut in Tokyo next summer – from the World Series in Hamburg. GenresSportSportAthleticsFormatsPerformances & EventsSeriesTriathlon - In House - 2019 Red Button Source: BBC Online