Japan Open: Tiafoe books spot in second round

American Frances Tiafoe, the No 4 seed, won against Japanese wildcard Yasutaka Uchiyama 6-3, 6-4 to reach the second round of the Japan Open at the Ariake Colosseum in Tokyo on Monday.

Tiafoe, ranked No 19, will face Spaniard Bernabe Zapata Miralles next.

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

• Denis Shapovalov vs. Steve Johnson : later in Tokyo
• James Duckworth vs. Taylor Fritz : later in Tokyo
• Miomir Kecmanovic vs. Yoshihito Nishioka : later in Tokyo
• Hiroki Moriya vs. Yuta Shimizu : later in Tokyo
• Nick Kyrgios vs. Chun-Hsin Tseng : later in Tokyo
• Sho Shimabukuro vs. Kamil Majchrzak : later in Tokyo
• Rio Noguchi vs. Ramkumar Ramanathan : later in Tokyo
• Casper Ruud vs. Jaume Munar : later in Tokyo
• Thanasi Kokkinakis vs. Borna Coric : later in Tokyo
• Radu Albot vs. Daniel Evans : later in Tokyo
• SoonWoo Kwon vs. Alex De Minaur : later in Tokyo
• Mackenzie McDonald vs. Kaichi Uchida : later in Tokyo
• 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