Day 12 of the Tokyo Olympics as Japan maintain their stranglehold on the skateboarding competition and another world record tumbles on the track.
Japan's Sakura Yosozumi won the women's park competition to stop Kokona Hiraki and Sky Brown becoming the Games' youngest-ever gold medallists.
The 19-year-old carved up the Ariake Urban Sports Park with a flowing opening run in the final and her 60.09 points proved enough for victory ahead of teammate Hiraki, 12, and Brown, 13.
Britain's Brown threatened to snatch a shock win with a flawless closing routine but her 56.47 was not enough.
World No 1 Misugu Okamoto missed a medal when she fell on all three runs in the final to finish fourth.
Japan also snapped up the men's and women's street titles and they have now bagged five of the nine medals so far as skateboarding makes its debut as one of four new Olympic sports.
Both Brown, at 13 years and 28 days, and Hiraki (12 years and 343 days) were bidding to break an 85-year-old record to become the youngest Olympic gold medallists.
They had a shot at bettering American diver Marjorie Gestring, who won 3m springboard gold aged 13 years and 268 days at the 1936 Games in Berlin.
American Sydney McLaughlin smashed her own world record to capture the 400 metres hurdles gold medal in 51.46 seconds at the Tokyo Olympics on Wednesday.
Such was the 21-year-old's performance she could even afford a stutter on the penultimate hurdle before powering across the finish line to best her previous record of 51.90 set in June.
Compatriot Dalilah Muhammad, the 2019 world and 2016 Olympic champion, won silver in a personal best 51.58 and Femke Bol of the Netherlands took bronze in 52.03.
