2018_Shimadzu_All_Japan_Indoor_Tennis_Championships_–_Singles
2018 Shimadzu All Japan Indoor Tennis Championships – Singles
2018 tennis event results
Yasutaka Uchiyama was the defending champion but lost in the first round to Michał Przysiężny.
John Millman won the title after defeating Jordan Thompson 7–5, 6–1 in the final.