World champion and world No. 1 Kento Momota defended his men's singles title with a straight-sets win, while Akane Yamaguchi beat Nozomi Okuhara in an all-Japanese women's singles final at the Japan Open on Sunday.
Playing in front of a cheering home crowd, Momota won a tight first game against Jonatan Christie of Indonesia 21-16 before cruising 21-13 in the second.
It's the first time Japan has won both the men's and women's singles titles at the Japan Open, an HSBC World Tour Super 750 tournament held since 1982.