Venus Vs. Serena Williams: Breaking Down Their Most Important Career Numbers

Tonight at 7pm EST, Serena and Venus Williams will go head to head in the quarter finals of the 2015 US Open. This year's US Open has been particularly exciting to watch, but the sister vs. sister match up will likely be one of the tournament highlights. Below is a quick breakdown of the Williams sister's careers by the numbers…

Venus Williams was born on July 17, 1980, making her 35 years old. Serena Williams was born on September 26, 1981, making her 33 years old (and just a few weeks away from her 34th birthday).

Venus has won a total of 7 Grand Slam singles titles. Serena has won 21.

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Venus and Serena have faced off against each other in 26 professional events. Of those 26 events, 13 were Grand Slams, 8 were Grand Slam finals.

Before tonight, their most recent match up was at the 2015 Wimbledon round of 16. Serena was victorious.

Out of their 26 professional meetings, Serena has won 15 and Venus has won 11. Out of their 13 Grand Slam meetings, Serena leads 8-5. Out of their 8 Grand Slam finals, Serena leads 6-2.

Serena has been pretty dominant recently. The last time Venus won a Grand Slam match against her sister was at the 2008 Wimbledon final.

As of this writing, Serena's career earnings stand at $73,293,494. That's more than any other woman in professional tennis history. If Serena was on the men's tour, she'd be the fourth highest earning player in history, just a few hundred thousand behind Rafael Nadal.

Venus' career earnings stand at $31,007,596. The third highest in women's history. Maria Sharapova sits in between the sisters at $35 million.

Serena's overall net worth stands at $140 million.

Serena earns $15-20 million per year from endorsements.

Venus' overall net worth stands at $75 million.

Venus earns $5 million per year from endorsements.

Both sisters are minority owners in the Miami Dolphins.

So who do you think will win tonight? If recent history is any indicator, Serena will emerge victorious. And if that happens and then Serena goes on to win the US Open, she will be the first woman since Steffi Graf in 1988 to win all four major Grand Slams in the same calendar year. A truly remarkable accomplishment.

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