The South Korean won the women's individual recurve gold medal at Rio 2016, as well as the team title, and is among a strong field at Yumenoshima Archery Field as Japan's capital prepares for next year's Games.

Thirty-two-year-old Chang won her opening contest 6-2 against Australia's Sarah Haywood and she then defeated Veronika Marcenko of Ukraine 6-0 in round two.

It means she has set-up a third round encounter with Germany's Michelle Kroppen.

Chinese Taipei's Olympic team bronze medallist Tan Ya-ting was another to make it through her two matches today as she firstly saw off Kazakhstan's Karakoz Askarova 6-0.

In the second-round Tan defeated Britain's Naomi Folkard 6-4 and will now face Germany's Elena Richter.

The men's draw saw safe passage for South Korea's Olympic team gold medallist Kim Woo-jin, a quadruple world champion.

Kim was seeded first after the qualification round and beat Timothy Palumbo of the United States 6-0 in his first outing.

He then beat Eric Peters of Canada by the same margin to book a date with Taylor Worth of Australia.

Kim has already tasted success in Tokyo, winning the mixed team title yesterday with Jeon Ina.

The competition is part of the Ready Steady Tokyo test event series with the remaining first and second round clashes in both draws due to be held over the next two days.