Japan Open: Giron sees off Nishioka

American qualifier Marcos Giron moved into the second round of the Japan Open by winning against Japanese Yoshihito Nishioka 7-6 (14), 4-6, 6-1 at the Ariake Colosseum in Tokyo on Monday.

Giron, ranked No 79, will face the winner of the match between Japanese wildcard Yosuke Watanuki and Norwegian Casper Ruud, the second seed, next.

Tokyo ATP500, other first-round results (Ariake Colosseum, hard, USD 2.013.940, most recent results first):

• Zhizhen Zhang vs. Hubert Hurkacz
• Aslan Karatsev vs. Frances Tiafoe
• Yosuke Watanuki vs. Casper Ruud
• Shintaro Mochizuki vs. Tomas Martin Etcheverry
• Ben Shelton vs. Taro Daniel
• Francisco Cerundolo vs. Diego Schwartzman
• Alexei Popyrin vs. Karen Khachanov
• Taylor Fritz vs. Cameron Norrie
• Alex De Minaur vs. Jack Draper
• Sho Shimabukuro vs. Cristian Garin
• Tommy Paul vs. Daniel Altmaier
• Felix Auger-Aliassime (8) beat Aleksandar Vukic: 7-6 (3), 6-7 (2), 6-2
• Jordan Thompson beat Alexander Zverev (3): 6-3, 6-4
• Sebastian Ofner beat Christopher O’Connell: 6-7 (2), 7-6 (5), 7-5
• Mackenzie McDonald beat Max Purcell: 7-5, 6-4