Yu Zidi, 13, wins record-breaking first major gold medal at Asian Games

Image source, Getty Images Image caption, Yu won gold by over three seconds in Tokyo

Chinese schoolgirl Yu Zidi lit up the opening day of the Asian Games with a record‑breaking 200m butterfly gold medal secured by a performance she described as "only so‑so".

The 13‑year‑old claimed her first major gold in two minutes 05.08 seconds, an Asian Games record that took almost half a second off compatriot Zhang Yufei's mark from three years ago.