Davis Cup WG PO: JPN vs BIH 2018
Players
| Player | Country | Reached | |
|---|---|---|---|
 |
Taro Daniel | JPN | Round Robin |
 |
Yoshihito Nishioka | JPN | Round Robin |
 |
Yosuke Watanuki | JPN | Round Robin |
| DB | Darko Bojanovic | BIH | Round Robin |
 |
Mirza Basic | BIH | Round Robin |
| TB | Tomislav Brkic | BIH | Round Robin |
Other matches
| Round | Winner | Loser | Score |
|---|---|---|---|
| RR | Taro Daniel | Tomislav Brkic | 6-4 6-2 7-6(3) |
| RR | Yoshihito Nishioka | Mirza Basic | 6-4 6-3 6-3 |
| RR | Yosuke Watanuki | Darko Bojanovic | 6-1 6-3 |