As upsets continue to shock viewers of the US Open, engineers at Prince Sports are watching their patented O-Technology hit winners up and down the court.

The concept seems simple – tiny round, oval, or trapezoidal holes placed strategically along the frame of a tennis racket.

But this subtle design feature has many benefits.  Not only does it make the racket lighter, but it also reduces drag and enlarges the area on the strings referred to as the sweet spot.

Seven years ago, Prince vice president Steve Davis, a former college tennis player and a mechanical engineer, tested the effects of the O-Technology after noticing a doodle of a tennis racket with holes in it.

Now similar design can be seen on other sports equipment as well, including hockey sticks, baseball bats, lacrosse sticks, and even archery bows.

Image: MC Sports

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Tags: Mechanical, Sports