in the men's artistic gymnastics, with gold in the all—around, thanks to 20—year—old newcomer shinnosuke oka better of countryman and tokyo champion daiko hashimoto and china's boheng zhang who took silver, and ruoteng xiao who claimed bronze. oka's win giving his nation a fourth—straight win in the event. both triathlon races took place, after the mens event was postponed on tuesday because of poor water quality in the river seine. britain's alex yee looked as though he'd have to settle for silver in the men's race, just as he did in tokyo three years ago. but on the final lap of the 10k run, he overcame a14—second deficit to pass his great rival, new zealand's hayden wilde, and secure gold. great britain have won more triathlon medals than any other nation since becoming an olympic sport in 2000. the women were first to dive into the seine and their race was close until the final lap of the run, when france's cassandre beaugrand pulled clear of switzerland's julie derron with great britain's beth potter in third. derron says they had no concerns over the water quality. the swimming was fin