| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2012 | 0/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2011 | 3/4 | 3/2 | 0/1 | 0/0 | 0/0 | 0/1 | 0/0 |
| 2010 | 0/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2009 | 1/1 | 0/0 | 0/0 | 0/0 | 1/1 | 0/0 | 0/0 |
| 2008 | 2/3 | 0/0 | 2/2 | 0/0 | 0/1 | 0/0 | 0/0 |
| TOTAL | 6/10 | 3/4 | 2/3 | 0/0 | 1/2 | 0/1 | 0/0 |
| perc. % | 37.5 % | 42.86 % | 40 % | 0 % | 33.33 % | 0 % | 0 % |
Maho Kowase / scheduled / last
| no matches found |
Maho Kowase form / year 2011
Maho Kowase / year 2011
| 25.06.11 | 1st round | Alison Van Uytvanck | Maho Kowase | 6-3, 6-0 |  | match details |  Wimbledon (juniors) | Grass |
| 29.05.11 | 1st round | Sophia Kovalets | Maho Kowase | 6-2, 6-3 | | match details |  French Open | Clay |
| 30.05.11 | q 1 | Maho Kowase | Aleah Marrow | 5-1, Aleah Marrow - retired |  | match details |  Hilton Head | Hard |
| 30.05.11 | q 2 | Maho Kowase | Sabrina Kierberg | 6-3, 6-3 | | match details | ||
| 30.05.11 | 1st round | Alexis King | Maho Kowase | 6-3, 6-0 | | match details | ||
| 30.05.11 | qual. | Maho Kowase | Brianna Morgan | 6-1, 6-2 | | match details | ||
| 23.01.11 | 1st round | Margarita Gasparyan | Maho Kowase | 6-1, 4-6, 7-5 | | match details |  Australian Open | Hard |
