Williams Sisters Cross another prize money milestone..?

Question

Just how did they do it? i mean considering they play less tournaments compared to most of the women on the tour.

Top 10:

1. Lindsay Davenport ($22,084,868)

2. Steffi Graf ($21,895,277)

3. Martina Navratilova ($21,626,089)

4. Venus Williams ($20,288,478)

5. Serena Williams ($20,247,546)

6. Martina Hingis ($20,130,657)

7. Justine Henin ($19,461,375)

8. Arantxa Sanchez-Vicario ($16,942,640)

9. Monica Seles ($14,891,762)

10. Kim Clijsters ($14,764,296)

Answer 1

The Williams sisters have been there since a very long time. Venus turned pro in 1994 which was 14 years ago  and Serena in 1995 which was 13 years ago. So, they have been on the tour for a very long time now.

Also they are the best players of their generation along with Justine Henin. Venus has 7 grandslams and Serena has 8 which is the best of their generation.

So are you really that surprised they have amassed so much money, considering they have been playing for 14 years on tour and have won so many grandslams?