Serena Williams is having one of the best seasons in Open Era history, the latest evidence being surpassing 10 titles in a season for the first time with her triumph at the China Open. In fact, she is just the 10th player in Open Era history to achieve the feat.
Here are all who have done so:
MARTINA NAVRATILOVA 9 times 1978 (11 titles), 1979 (10 titles), 1980 (11 titles), 1981 (10 titles), 1982 (15 titles), 1983 (16 titles), 1984 (13 titles), 1985 (12 titles), 1986 (14 titles)
MARGARET COURT 6 times 1968 (14 titles), 1969 (18 titles), 1970 (21 titles), 1971 (10 titles), 1972 (10 titles), 1973 (18 titles)
CHRIS EVERT 6 times 1973 (12 titles), 1974 (16 titles), 1975 (16 titles), 1976 (12 titles), 1977 (11 titles), 1982 (10 titles)
STEFFI GRAF 5 times 1987 (11 titles), 1988 (11 titles), 1989 (14 titles), 1990 (10 titles), 1993 (10 titles)
BILLIE JEAN KING 2 times 1971 (17 titles), 1972 (10 titles)
MONICA SELES 2 times 1991 (10 titles), 1992 (10 titles)
TRACY AUSTIN once 1980 (11 titles)
MARTINA HINGIS once 1997 (12 titles)
JUSTINE HENIN 1 2007 (10 titles)
SERENA WILLIAMS once 2013 (10 titles)