Ena Koike
2024
| Wimbledon Junior | [13] | 2R |
| J300Roehampton | [12] | 1R |
| Roland Garros Junior | [8] | 1R |
| Australian Open Junior | [10] | Semi |
2023
| Us Open Junior | [6] | Quarter |
| Wimbledon Junior | [8] | Quarter |
| J300Roehampton | [7] | Semi |
| Roland Garros Junior | [12] | 2R |
| J500Milan | [10] | Quarter |
| Australian Open Junior | [11] | 3R |
| J300Traralgon | [10] | 3R |
2022
| J1Bradenton | [5] | Semi |
| Jb1Osan-Asiaclosed | [2] | Win |
| J2Chuncheon | [1] | Win |
| J3Sarawak | [2] | Win |
| J1Sarawak | [8] | Win |
| J1Repentigny | 2R | |
| J1Collegepark | 2R | |
| J3Santodomingo-4 | [1] | Semi |
| J3Santodomingo-3 | [2] | 2R |
| J1Salinas | 1R | |
| J1Barranquilla | Quarter | |
| J1Sanjose | 2R |
2021
| J3Santodomingo-4 | 2R | |
| J3Santodomingo-3 | 1R | |
| J5Daytonabeach | Final | |
| J4Cancun-4 | Quarter | |
| J5Managua-2 | Win | |
| J5Managua | Quarter |
Age
18 years old (born in 2006)
World Ranking
WTA Ranking　590th
Year-end Junior World Ranking
- Year-end 2024 102th
- Year-end 2023 16th
- Year-end 2022 20th
- Year-end 2021 208th
Match Details
2024 Wimbledon Junior
| W | 1R | Ruth Roura Llaverias | 7-6 44-6 7-5 |
| L | 2R | Sonja Zhiyenbayeva | 3-6 4-6 |
2024 J300Roehampton
| L | 1R | Laima Vladson | 3-6 7-5 4-5 |
2024 Roland Garros Junior
| L | 1R | Gloriana Nahum | 3-6 6-2 4-6 |
2024 Australian Open Junior
| W | 1R | Renee Alame | 6-2 6-4 |
| W | 2R | Rose Marie Nijkamp | 6-3 6-2 |
| W | 3R | Vendula Valdmannova | 6-3 6-2 |
| W | QF | Vlada Mincheva | 7-6 6-0 |
| L | SF | Renata Jamrichova | 4-6 6-2 3-6 |
2023 Us Open Junior
| W | 1R | Tyra Caterina Grant | 7-5 6-3 |
| W | 2R | Elizara Yaneva | 7-6 6-4 |
| W | 3R | Aspen Schuman | 6-7 6-3 6-2 |
| L | QF | Katherine Hui | 0-6 3-6 |
2023 Wimbledon Junior
| W | 1R | Gabia Paskauskas | 6-0 6-1 |
| W | 2R | Alanis Hamilton | 7-6 6-7 6-0 |
| W | 3R | Taylah Preston | 6-4 6-3 |
| L | QF | Alina Korneeva | 5-7 6-7 |
2023 J300Roehampton
| W | 1R | Malwina Rowinska | 4-6 6-4 6-3 |
| W | 2R | Tatum Evans | 2-6 6-3 6-4 |
| W | 3R | Nina Vargova | 7-6 3-6 6-2 |
| W | QF | Isabelle Lacy | 6-4 6-2 |
| L | SF | Tereza Valentova | 1-6 6-7 |
2023 Roland Garros Junior
| W | 1R | Laura Samson | 6-2 6-3 |
| L | 2R | Anastasiia Gureva | 6-0 6-7 3-6 |
2023 J500Milan
| W | 1R | Charo Esquiva Banuls | 7-6 6-4 |
| W | 2R | Alisa Oktiabreva | 6-2 7-6 |
| W | 3R | Federica Urgesi | 5-7 6-3 6-4 |
| L | QF | Clervie Ngounoue | 6-4 2-6 5-7 |
2023 Australian Open Junior
| W | 1R | Anastasia Grechkina | 6-4 6-2 |
| W | 2R | Maria Daciana Ciubotaru | 6-2 6-4 |
| L | 3R | Weronika Ewald | 2-6 6-1 5-7 |
2023 J300Traralgon
| W | 1R | Gabrielle Villegas | 6-3 6-1 |
| W | 2R | Onyu Choi | 4-6 6-3 6-1 |
| L | 3R | Mirra Andreeva | 2-6 2-6 |
2022 J1Bradenton
| W | 1R | Emily Sartz-Lunde | 6-3 6-1 |
| W | 2R | Ava Krug | 6-3 7-6 |
| W | 3R | Charlotte Kempenaers-Pocz | 4-6 6-2 |
| W | QF | Luciana Moyano | 7-5 6-2 |
| L | SF | Mayu Crossley | 2-6 1-3 |
2022 Jb1Osan-Asiaclosed
| W | 1R | Eun Seo Kim | 7-5 6-1 |
| W | 2R | Ching Laam Lai | 6-1 6-1 |
| W | 3R | Nahyeong Cho | 6-2 4-6 6-2 |
| W | QF | Hyunyee Lee | 6-4 4-6 6-4 |
| W | SF | Gaeul Jang | 6-4 6-0 |
| W | F | Onyu Choi | 6-4 6-3 |
2022 J2Chuncheon
| W | 1R | Jieon Oh | 6-3 6-0 |
| W | 2R | Maayan Laron | 6-1 6-0 |
| W | QF | Onyu Choi | 6-1 6-2 |
| W | SF | Roisin Gilheany | 6-4 6-3 |
| W | F | Shiho Tsujioka | 6-4 6-3 |
2022 J3Sarawak
| W | 3R | Sin Yu Che | 6-1 6-3 |
| W | QF | Roisin Gilheany | 7-6 6-3 |
| W | SF | Lidia Podgorichani | 6-0 6-2 |
| W | F | Salma Drugdova | 6-3 6-2 |
2022 J1Sarawak
| W | 2R | Tejsavi Dabas | - - - |
| W | 3R | Lily Fairclough | 6-3 7-5 |
| W | QF | Amelie Smejkalova | 6-0 7-6 |
| W | SF | Lily Taylor | 6-4 6-1 |
| W | F | Monika Stankiewicz | 7-5 6-2 |
2022 J1Repentigny
| W | 1R | Mariya Dobreva | 6-4 6-1 |
| L | 2R | Yara Bartashevich | 2-6 6-3 4-6 |
2022 J1Collegepark
| W | 1R | Sage Loudon | 6-3 6-4 |
| L | 2R | Ahmani Guichard | 5-7 2-6 |
2022 J3Santodomingo-4
| W | 1R | Madi Rogers | 6-0 |
| W | 2R | Nehanda Thomias | 6-4 6-4 |
| W | QF | Maria Dominique Fuenzalida Higareda | 6-1 6-2 |
| L | SF | Anya Murthy | 6-1 1-6 3-6 |
2022 J3Santodomingo-3
| W | 1R | Anna-Raphaelle Serghi | 6-3 6-1 |
| L | 2R | Maya Iyengar | 2-6 2-6 |
2022 J1Salinas
| L | 1R | Renata Jamrichova | 3-6 1-6 |
2022 J1Barranquilla
| W | 1R | Carla Pacot | 6-2 6-2 |
| W | 2R | Lucciana Perez Alarcon | 6-4 6-3 |
| W | 3R | Maria Carolina Ferreira Turchetto | 4-6 6-0 6-2 |
| L | QF | Olivia Lincer | 2-6 2-6 |
2022 J1Sanjose
| W | 1R | Juliette Bovy | 6-2 6-1 |
| L | 2R | Ahmani Guichard | 2-6 6-4 1-6 |
2021 J3Santodomingo-4
| W | 1R | Daniella Ben-Abraham | 6-2 6-3 |
| L | 2R | Martyna Ostrzygalo | 2-6 1-6 |
2021 J3Santodomingo-3
| L | 1R | Olivia Lincer | 2-6 4-6 |
2021 J5Daytonabeach
| W | 1R | Ahmani Guichard | 6-3 1-6 7-5 |
| W | 2R | Kaitlyn Rolls | 6-3 6-2 |
| W | QF | Mia Yamakita | 6-2 6-3 |
| W | SF | Tatum Evans | 7-5 6-3 |
| L | F | Nevena Carton | 1-6 5-7 |
2021 J4Cancun-4
| W | 1R | Ashton Bowers | 2-0 |
| W | 2R | Mariana Reding | 6-2 6-2 |
| L | QF | Cadence Brace | 4-6 3-6 |
2021 J5Managua-2
| W | 1R | Aida Oviedo | 6-0 6-0 |
| W | 2R | Natalia Vela Zangroniz | 6-1 6-3 |
| W | QF | Sarah Lallier | 6-4 6-0 |
| W | SF | Ellie Daniels | 6-1 6-1 |
| W | F | Elizabeth Tkachenko | 6-3 6-3 |
2021 J5Managua
| W | 1R | Tianna Rangan | 6-1 6-3 |
| W | 2R | Ellie Daniels | 4-6 6-2 7-5 |
| L | QF | Sierra Berry | 1-6 4-6 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 9232, Number of registered players: 5,739, Number of registered results: 303,630