Kimiko Date Krumm
Kimiko Date won seven singles titles back in the 1990s, then got married, started a family (becoming Kimiko Date Krumm) and left tournament tennis. For 12 years.
Now, a day before her 39th birthday, Date is a winner again on the WTA. She won the Korea Open on Sunday. She's the oldest player to win a WTA title since Billie Jean King, who won in 1983 at age 39.