Japan Open: De Minaur dismantled by Kwon

SoonWoo Kwon defeated Australian Alex de Minaur, the No 6 seed, 6-3, 6-2 to move into the second round of the Japan Open at the Ariake Colosseum in Tokyo on Tuesday.

Kwon, ranked No 120, will play the winner of the match between American Mackenzie McDonald and Japanese wildcard Kaichi Uchida next.

Tokyo ATP 500, other first-round matches (Ariake Colosseum, hard, USD 1.953.285, most recent results first):

• Denis Shapovalov vs. Steve Johnson
• James Duckworth vs. Taylor Fritz
• Miomir Kecmanovic vs. Yoshihito Nishioka
• Hiroki Moriya vs. Yuta Shimizu
• Nick Kyrgios vs. Chun-Hsin Tseng
• Sho Shimabukuro vs. Kamil Majchrzak
• Rio Noguchi vs. Ramkumar Ramanathan
• Casper Ruud vs. Jaume Munar
• Thanasi Kokkinakis vs. Borna Coric
• Radu Albot vs. Daniel Evans
• Mackenzie McDonald vs. Kaichi Uchida: tuesday
• Frances Tiafoe (4) beat Yasutaka Uchiyama (WC): 6-3, 6-4
• Bernabe Zapata Miralles beat Taro Daniel: 7-5, 7-5
• Brandon Nakashima beat Shintaro Mochizuki (WC): 6-3, 6-2
• Pedro Martinez beat Alexei Popyrin: 7-5, 6-4