Hiiro Sakamoto
2023
2022
| J5 GIFU | [6] | Final |
| AI SUGIYAMA CUP | [3] | 2R |
| J5 CHIGASAKI | [3] | 2R |
| J5 YAMANASHI | [3] | Win |
| J2 NAGOYA | 1R | |
| JAOSAKA | 1R | |
| J3 KAWAGUCHI | 2R | |
| J4 MIKICITY | [6] | Quarter |
| J3 ISTANBUL-3 | 2R | |
| J5 ISTANBUL | [14] | 1R |
| J5 KURUME | [4] | Quarter |
2021
| J5 GIFU | [4] | Quarter |
| J5 MATSUYAMA | 1R | |
| J5 YAMANASHI | [7] | Quarter |
| J4 NAGOYA | Quarter | |
| J4 OSAKA | Quarter | |
| J4 MIKI-CITY-2 | 2R | |
| J4 MIKI-CITY | 1R | |
| J5 NAIROBI | 1R |
2019
Nation
JPN
Generation
Born in 2005 (19-20 years old)
Year-end Junior World Ranking
- Year-end 2023 2518th
- Year-end 2022 575th
- Year-end 2021 944th
- Year-end 2020 2893th
- Year-end 2019 3018th
Match Details
2023 J500 OSAKA
| L | 1R | Joel Schwaerzler | 3-6 2-6 |
2023 J200 VILLACH
| L | 1R | Tymur Bieldiugin | 0-6 3-6 |
2023 J200 KOLKATA
| L | 1R | Pranav Karthik | 6-3 5-7 4-6 |
2022 J5 GIFU
| W | 1R | Hudson Baxter | 7-5 6-2 |
| W | 2R | Yuto Konishi | 6-3 6-2 |
| W | QF | Hiromasa Koyama | 6-3 6-2 |
| W | SF | So Ogiri | 7-5 2-6 6-4 |
| L | F | Kazuma Kimura | 2-6 4-6 |
2022 AI SUGIYAMA CUP
| W | 1R | Ko Nagashima | 4-6 6-4 6-2 |
| L | 2R | Yuya Ando | 4-6 4-6 |
2022 J5 CHIGASAKI
| W | 1R | Ko Nagashima | 4-6 6-4 6-2 |
| L | 2R | Yuya Ando | 4-6 4-6 |
2022 J5 YAMANASHI
| W | 1R | Kanata Ozaki | 6-1 6-2 |
| W | 2R | Kotaro Matsumura | 6-1 6-2 |
| W | QF | Taisei Hata | 6-1 5-7 7-5 |
| W | SF | Natsuki Yamamoto | 6-4 6-4 |
| W | F | Ryuto Suzuki | 6-0 7-5 |
2022 J2 NAGOYA
| L | 1R | Ryo Tabata | 0-6 4-6 |
2022 JAOSAKA
| L | 1R | Asahi Harazaki | 1-6 3-6 |
2022 J3 KAWAGUCHI
| W | 1R | Takamasa Mishiro | 4-6 6-1 10-6 |
| L | 2R | Toa Maeda | 7-6 5-7 4-10 |
2022 J4 MIKICITY
| W | 1R | Yuki Karatsu | 6-1 1-6 6-3 |
| W | 2R | Hikaru Takahashi | 6-7 6-2 6-2 |
| L | QF | So Ogiri | 6-2 5-7 4-6 |
2022 J3 ISTANBUL-3
| W | 1R | Kerem Ozlale | 5-7 6-3 6-1 |
| L | 2R | Kerem Yilmaz | 3-6 1-6 |
2022 J5 ISTANBUL
| L | 1R | Ivan Gretskiy | 0-6 3-6 |
2022 J5 KURUME
| W | 1R | Ryosuke Inagawa | 6-2 6-3 |
| W | 2R | Ryo Tabata | 4-6 6-2 7-5 |
| L | QF | Shion Itsusaki | 6-4 5-7 6-7 |
2021 J5 GIFU
| W | 1R | Naoki Watanabe | 7-5 6-0 |
| W | 2R | Kazuma Kimura | 5-7 6-3 6-2 |
| L | QF | Shu Muto | 2-6 2-6 |
2021 J5 MATSUYAMA
| L | 1R | Asahi Harazaki | 2-6 3-6 |
2021 J5 YAMANASHI
| W | 1R | Ryo Murakami | 7-5 3-6 7-5 |
| W | 2R | Tomonobu Inagi | 6-3 5-7 6-2 |
| L | QF | Naoya Honda | 6-3 2-6 1-6 |
2021 J4 NAGOYA
| W | 1R | Ryusei Miyazato | 6-2 6-3 |
| W | 2R | Asahi Harazaki | 6-4 6-4 |
| L | QF | Shogo Sanada | 6-3 4-6 4-6 |
2021 J4 OSAKA
| W | 1R | Shogo Sanada | 2-6 6-0 6-0 |
| W | 2R | Ryusei Miyazato | 6-3 6-0 |
| L | QF | Hayato Kurihara | 1-6 4-6 |
2021 J4 MIKI-CITY-2
| W | 1R | Eito Komada | 6-4 6-1 |
| L | 2R | Kenta Miyoshi | 0-6 1-6 |
2021 J4 MIKI-CITY
| L | 1R | Rei Sakamoto | 5-7 1-6 |
2021 J5 NAIROBI
| L | 1R | Theo Herrmann | 0-6 7-6 3-6 |
2019 AI SUGIYAMA CUP
| L | 1R | Asahi Harazaki | 1-6 1-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 10179, Number of registered players: 6,443, Number of registered results: 375,166