Machiko Aizawa

is a former badminton player from Japan who won Japanese national and major international titles from the late 1960s to the mid-1970s.

Though highly competitive in singles, Machiko's greatest success came in women's doubles with Etsuko Takenaka Toganoo. They shared the prestigious All-England Championships in 1972, 1973, and 1975. They won the Danish Open women's doubles title in 1970 and 1974, the quadrennial Asian Games championship in 1970, and the U.S. Open women's doubles title, on their only try, in 1970. Aizawa played on Japan's 1972 Uber Cup (women's international) team which retained the world championship, and its 1975 team which lost the title to Indonesia.

Achievements Asian Games Women's doubles Year Venue Partner Opponent Score Result 1970 Kittikachorn Stadium, Bangkok, Thailand Etsuko Takenaka Retno Kustijah Nurhaena 15–11, 15–6 Gold Gold

International tournaments (7 titles, 3 runners-up) Women's doubles Year Tournament Partner Opponent Score Result 1968 Malaysia Open Etsuko Takenaka Noriko Takagi Hiroe Yuki 15–11, 15–10 Winner 1970 Denmark Open Etsuko Takenaka Hiroe Amano Noriko Takagi 15–17, 15–12, 15–9 Winner 1970 U.S. Open Etsuko Takenaka Susan Whetnall Margaret Boxall 15–10, 15–11 Winner 1971 Denmark Open Etsuko Takenaka Noriko Takagi Hiroe Yuki 10–15, 3–15 Runner-up 1972 Denmark Open Etsuko Takenaka Noriko Takagi Hiroe Yuki 11–15, 15–11, 15–17 Runner-up 1972 All England Open Etsuko Takenaka Margaret Beck Julie Rickard 9–15, 15–8, 15–12 Winner 1973 All England Open Etsuko Takenaka Margaret Beck Gillian Gilks 15–10, 10–15, 15–11 Winner 1974 Denmark Open Etsuko Takenaka Pernille Kaagaard Ulla Strand 18–15, 15–12 Winner 1975 All England Open Etsuko Takenaka Theresia Widiastuti Imelda Wiguna 15–11, 17–14 Winner

Mixed doubles

Invitational tournament Women's doubles Year Tournament Partner Opponent Score Result 1974 (Glasgow) World Invitational Championships Etsuko Takenaka Margaret Beck Nora Perry 15–7, 15–8 Gold Gold