1979 Toray Sillook Open

The 1979 Toray Sillook Open was a women's singles tennis tournament played on indoor carpet courts at Yoyogi National Gymnasium in Tokyo in Japan. The event was part of the AAAA^[a] category of the 1979 Colgate Series. It was the seventh edition of the tournament and was held from 11 September through 16 September 1979.^[2] Sixth-seeded Billie Jean King won the title and earned $32,000 first-prize money. By reaching the final, Evonne Goolagong Cawley became the fourth female player to break the mark of $1 million in prize-money.^[2][1]

1979 Toray Sillook Open
Date	11–16 September
Edition	7th
Category	Colgate Series (AAAA)
Draw	32S
Prize money	$150,000
Surface	Carpet / indoor
Location	Tokyo, Japan
Venue	Yoyogi National Gymnasium
Champions
Singles
Billie Jean King

Finals

Singles

Billie Jean King defeated Evonne Goolagong Cawley 6–4, 7–5

• It was King's 1st singles title of the year and the 122nd of her career.

Prize money

Event	W	F	3rd	4th	QF	Round of 16	Round of 32
Singles [2]	$32,000	$16,000	$8,600	$8,150	$4,000	$2,000	$1,000

Notes

1. Tournaments with prize money for the women of at least $150,000.^[1]