When it comes to tennis, there’s one thing that stands out above all else – speed. Now, I’m not talking about how fast the players run up and down the court, but the speed of their serves. You know, the big hits that come flying at you faster than a speeding car. But what’s the fastest tennis serve ever recorded? Well, sit tight, ‘cause I’m about to tell you.
Let’s go back to the year 2012, over in Busan, South Korea, during an ATP Challenger event. The player who set the record wasn’t some flashy big-name tennis star, no. It was a big ol’ guy from Australia named Sam Groth. Now, Sam Groth, he had a serve like you wouldn’t believe. That serve of his flew through the air at a mind-blowing 163.7 mph (that’s about 263.4 km/h). That’s faster than most cars drive on a highway, I tell ya!

To put it in perspective, the average speed of a serve in professional tennis usually hovers around 100 mph or so. But Sam Groth wasn’t playing around. His serve was a monster, and it’s been the record-holder for the fastest serve in tennis ever since. Even the best of the best, like Serena Williams and Novak Djokovic, well, they can’t touch that kind of speed.
Now, some folks might tell you that Serena Williams hit a mighty fast serve too. And they’re right! In 2013, Serena hit a serve that reached 128.6 mph. Not bad for a lady, huh? But even that couldn’t beat Sam Groth’s thunderous serve. And even in 2021, at the Australian Open, Serena’s serve was clocked at 125.5 mph – faster than many of the men in the tournament, but still not enough to break the record.
While Sam Groth is the undisputed king of the fastest serve, there’s another name that keeps popping up: John Isner. He’s an American player, and he’s been known for having a wicked serve. Back in 2010, he set the fastest serve at Wimbledon, reaching speeds of 155 mph (249.4 km/h). That’s no slouch either, but it still didn’t match Groth’s insane 163.7 mph.
What makes these fast serves so special? Well, it’s all about power, precision, and timing. These tennis pros are not just swinging their rackets; they’re hitting with all the muscle and skill they’ve got. The faster the ball, the harder it is for the opponent to react. That’s why these players have to be in top shape, with lightning reflexes, to even have a chance of returning such a serve.
So, how does a serve like this even happen? Well, it’s not just about strength, although that helps. It’s also about the technique. The server needs to hit the ball just right, with the right spin and angle, so that it travels as fast as possible. That’s why these serves are so rare – it takes a whole lot of practice and natural talent to get it just right.

Now, you might be wondering, “Who else is close to these record speeds?” Well, over the years, many players have come close. But none have quite matched Sam Groth’s incredible 163.7 mph. There’s been talk that some players might be able to hit even faster serves in the future, but for now, Groth’s serve stands tall.
Fastest Serves in Tennis History:
- Sam Groth – 163.7 mph (263.4 km/h) – 2012, Busan, South Korea
- John Isner – 155 mph (249.4 km/h) – 2010, Wimbledon
- Serena Williams – 128.6 mph (206.5 km/h) – 2013
- Novak Djokovic – 131 mph (210.8 km/h) – 2011
And that’s all there is to it! Fast serves in tennis are a thing of wonder. They show off the skill, strength, and precision of the players, and the record set by Sam Groth is one for the books. Who knows? Maybe one day someone will break it, but for now, Sam Groth’s 163.7 mph still holds strong.
Tags:[tennis fastest serve, Sam Groth record, fastest tennis serve, John Isner serve, Serena Williams serve, tennis serve speed]