Japan Open: Nakashima upsets seventh seed Tiafoe in first round

American Brandon Nakashima won against No 7 seed and compatriot Frances Tiafoe 7-5, 6-3 to advance to the second round of the Japan Open on Thursday.

Nakashima, ranked No 36, will face Frenchman Ugo Humbert next at the Ariake Colosseum in Tokyo.

Tokyo ATP 500, other first-round matches (Ariake Colosseum, hard, USD 1,818,380):

• Ben Shelton (8) beat Reilly Opelka: 3-6, 6-1, 6-4
• Alex Michelsen (Q) beat Stefanos Tsitsipas (4): 4-6, 6-1, 6-2
• Tomas Machac beat Alexei Popyrin: 6-3, 6-7 (5), 7-5
• Yoshihito Nishioka (WC) beat Felix Auger-Aliassime: 7-6 (5), 3-6, 7-6 (5)
• Jack Draper beat Mattia Bellucci (Q): 6-4, 6-2
• Tommy Paul (5) beat Matteo Arnaldi: 6-3, 6-2
• Ugo Humbert beat Shintaro Mochizuki (WC): 6-1, 6-2
• Hubert Hurkacz (2) beat Marcos Giron: 6-4, 6-7 (5), 6-4
• Matteo Berrettini beat Botic van de Zandschulp (Q): 6-3, 6-4
• Mariano Navone beat Luciano Darderi: 6-4, 6-4
• Casper Ruud vs. Jordan Thompson
• Marin Cilic vs. Kei Nishikori
• Taylor Fritz vs. Arthur Fils
• Alejandro Tabilo vs. Holger Rune
• Tomas Martin Etcheverry vs. Christopher O’Connell