The US Open has just begun, and while the focus is on the tennis itself, the prize pot at the competition is greater than it's ever been. For the tournament's 50th anniversary, the winner of the men's and women's brackets will each receive a staggering $3.8 million, $100,000 more than the top prize last year.

The tournament has pay parity for men and women, with its entire bounty coming to a record-breaking $53 million, a 5 percent increase from last year's total of $50.4 million. Singles players get $54,000 just for reaching the tournament's opening round of 128. Payments increase with each stage, with second-round matches bringing in $93,000, players in the round of 32 receiving $156,000, and fourth-round players getting a payout of $266,000.

Players reaching the quarterfinal get $475,000, while semifinalists receive $925,000. If you reach the final but lose out, your payout is still impressive, with the runner-up getting $1,850,000 — $25,000 more than last year's check.

In the doubles competitions, the winning teams get $700,000, with the runner-up receiving $350,000. Semifinalists and quarterfinalists receive $166,400 and $85,275 respectively. Teams in the round of 16 get $46,500, those in the round of 32 receive $27,875, and the payout for reaching the initial round of 64 is $16,500.

Perhaps unsurprisingly, the US Open is the richest tournament in tennis history as well as the first to give equal prize money to male and female athletes, starting in 1973. By contrast, Wimbledon only started offering equal prize money in 2007. Read more at the US Open.

The US Open is on now and runs until September 9.

Are you surprised the by the prize money? Let us know your thoughts in the comments below.

In case you missed it, watch Nike's powerful "Just Do It" ad, celebrating Serena Williams' return to the US Open. 

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