Name: Kei Sekine
Country: Japan
Birthdate: 24.02.84, 41 years
Prize money: 14301 $
Matches total: 63
Win: 17
%: 26.98 %
Country: Japan
Birthdate: 24.02.84, 41 years
Prize money: 14301 $
Matches total: 63
Win: 17
%: 26.98 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2011 | 4/11 | 2/6 | 0/0 | 0/0 | 2/5 | 0/0 | 0/0 |
| 2010 | 4/8 | 0/1 | 0/1 | 0/0 | 4/6 | 0/0 | 0/0 |
| 2009 | 5/9 | 2/2 | 0/1 | 0/0 | 3/6 | 0/0 | 0/0 |
| 2008 | 3/8 | 1/2 | 2/4 | 0/1 | 0/1 | 0/0 | 0/0 |
| 2007 | 1/5 | 0/2 | 0/0 | 0/0 | 1/3 | 0/0 | 0/0 |
| 2006 | 0/5 | 0/1 | 0/0 | 0/0 | 0/4 | 0/0 | 0/0 |
| TOTAL | 17/46 | 5/14 | 2/6 | 0/1 | 10/25 | 0/0 | 0/0 |
| perc. % | 26.98 % | 26.32 % | 25 % | 0 % | 28.57 % | 0 % | 0 % |
Kei Sekine / scheduled / last
| no matches found |
Kei Sekine form / surface: Hard
Kei Sekine / surface: Hard
| 03.10.11 | q 1 | Chisato Nakagawa | Kei Sekine | 7-62, 5-7, 6-4 |  | match details |  Kofu | Hard |
| 22.08.11 | q 1 | Kei Sekine | Ai Kamiyoshihara | 6-1, 4-6, 6-3 |  | match details | Saitama | Hard |
| 22.08.11 | qual. | Wan-Ting Liu | Kei Sekine | 6-0, 6-3 | | match details | ||
| 06.06.11 | q 1 | Kei Sekine | Asako Sato | 6-2, 6-1 | | match details | Tokyo | Hard |
| 06.06.11 | qual. | Kanami Tsuji | Kei Sekine | 6-0, 6-0 | | match details | ||
| 06.06.11 | 1st round | Sakiko Shimizu | Kei Sekine | 6-2, 6-1 | | match details | ||
| 23.05.11 | q 1 | Chihiro Nunome | Kei Sekine | 6-3, 6-1 | | match details | Niigata | Hard |
| 25.04.11 | q 1 | Mari Inoue | Kei Sekine | 6-2, 6-2 | | match details | Gifu | Hard |
| 18.10.10 | 1st round | Hae-Sung Kim | Kei Sekine | 6-0, 6-2 | | match details |  Yeong Wol | Hard |
| 24.08.09 | 1st round | Kei Sekine | Mai Minokoshi | 6-4, 1-0, Mai Minokoshi - retired | | match details | Saitama | Hard |
| 24.08.09 | 2nd round | Etsuko Kitazaki | Kei Sekine | 6-1, 6-2 | | match details | ||
| 08.06.09 | 2nd round | Misaki Doi | Kei Sekine | 6-2, 6-3 | | match details | Tokyo | Hard |
| 08.06.09 | 1st round | Kei Sekine | Tomoyo Takagishi | 6-1, 6-72, 6-3 | | match details | ||
| 09.06.08 | 2nd round | Ayumi Oka | Kei Sekine | 4-6, 6-4, 6-1 | | match details | Tokyo | Hard |
| 09.06.08 | 1st round | Kei Sekine | Shiori Kikukawa | 6-1, 6-1 | | match details | ||
| 28.04.08 | 1st round | Cassandra Barr | Kei Sekine | 7-66, 4-6, 6-4 | | match details |  Balikpapan | Hard |
| 12.11.07 | 1st round | Vlada Ekshibarova | Kei Sekine | 6-1, 6-3 | | match details |  Manila | Hard |
| 02.07.07 | 1st round | Yuka Kuroda | Kei Sekine | 3-6, 6-0, 6-1 | | match details | Nagoya | Hard |
| 28.08.06 | 1st round | Eun-Hye Cho | Kei Sekine | 6-3, 6-3 | | match details | Saitama | Hard |
