5 unbreakable records of Martina Navratilova

2. Only player to be ranked #1 in Singles and Doubles for over 200 weeks

Pam Shriver (left) and Martina Navratilova - the greatest Doubles pair in Women's Tennis. They won all 4 Grand Slam titles in the year 1984

A towering figure, Navratilova was not just content with dominating the Singles field, She, in fact, routinely competed at the highest level in Doubles and Mixed Doubles too -- the latter she began to pursue in her 30's. Navratilova was World Number 1 in Singles for a whopping 332 weeks and 237 weeks in Doubles, making her the only tennis athlete to have been ranked the Number 1 player in both categories for at least 200 weeks.

Navratilova was ranked the year-end Number 1 in Singles for 7 years, including an all-time record of 5 consecutive years. In Doubles, she finished 5 years as the World Number 1 ranked player. Another amazing fact is that for 3 whole years, Navratilova was ranked Number 1 in Singles and Doubles wire-to-wire.