ITF W100 Gifu 04/30 06:20 25 Ena Koike v Yuriko Lily Miyazaki 4-6,5-7
ITF W100 Tokyo 04/25 04:50 26 Mai Hontama v Ena Koike 6-1,6-4
ITF W100 Tokyo 04/23 06:30 25 Stacey Fung v Ena Koike 6-4,6-7,4-6
WTA Miami 03/17 18:30 14 Harriet Dart v Ena Koike 6-2,6-3
ITF W35 Spring 02/28 17:55 25 Ena Koike v Jessica Failla 4-6,5-7
WTA Abu Dhabi 02/03 08:25 14 Ena Koike v Cristina Bucsa 6-3,3-6,2-6
ITF W50 Nonthaburi 01/02 05:15 25 Ena Koike v Haruka Kaji 3-6,0-6
ITF W50 Nonthaburi 01/01 03:00 54 Ena Koike v Watsachol Sawasdee 7-6,6-1
ITF W50 Nonthaburi 12/31 01:55 54 Ena Koike v Pawinee Ruamrak 6-0,6-1
ITF W100 Takasaki 11/24 03:40 27 Ena Koike v Zhuoxuan Bai 0-6,7-6,2-6
ITF W100 Takasaki 11/23 03:45 26 Harriet Dart v Ena Koike Walkover
ITF W100 Takasaki 11/22 01:25 25 Ena Shibahara v Ena Koike 2-6,0-6
ITF W100 Takasaki 11/17 06:00 27 Sijia Wei v Ena Koike 6-4,6-3
ITF W100 Takasaki 11/16 03:40 26 Ayano Shimizu v Ena Koike 5-7,2-6
ITF W100 Takasaki 11/15 01:00 25 Ena Koike v Nao Hibino 6-4,7-5
ITF W100 Takasaki 11/13 06:30 54 Ena Koike v Erika Sema 6-4,6-4
ITF W100 Takasaki 11/13 00:55 54 Joanna Garland v Ena Koike 6-7,6-3,1-6
ITF W60 Rome GA 10/04 18:35 25 Raveena Kingsley v Ena Koike 6-7,6-3,6-2
ITF W60 Rome GA 10/03 14:00 54 Sara Daavettila v Ena Koike 7-5,3-6,6-7
ITF W60 Rome GA 10/02 16:30 54 Adaugo Ukaegbu v Ena Koike 1-6,0-6
ITF W40 Palma del Rio 06/28 18:45 25 Ena Koike v Eva Guerrero Alvarez 2-6,2-6
ITF W40 Palma del Rio 06/26 07:30 54 Ena Koike v Nagi Hanatani 4-6,6-3,7-5
ITF W40 Palma del Rio 06/25 06:30 54 Dalayna Hewitt v Ena Koike 4-6,1-6
ITF W25 Zaragoza 06/20 09:30 25 Jamie Loeb v Ena Koike 7-6,7-5
ITF W25 Zaragoza 06/19 13:35 54 Noelia Zeballos v Ena Koike 3-6,6-3,5-10
ITF W25 Zaragoza 06/18 09:30 54 Ena Koike v Ekaterina Kazionova 6-2,6-1
ITF W60 Biarritz 06/14 09:55 25 Ena Koike v Irene Burillo Escorihuela 5-7,4-6
ITF W60 Biarritz 06/13 10:10 54 Ena Koike v Naho Sato 7-5,2-6,6-2
ITF W60 Biarritz 06/12 12:55 54 Julia Middendorf v Ena Koike 6-2,2-6,1-6
ITF W60 Naples 05/08 14:00 54 Alexandra Osborne v Ena Koike 6-2,7-6