Get ready to be blown away! In 2012, Sam Groth rocked the tennis world with a mind-boggling serve at a jaw-dropping speed of 163 mph (263 km/h) during the Busan Open Challenger. That's right, this serve zoomed faster than a speeding bullet! 🚀 But here's a twist - even though it's the fastest ace ever recorded in men's tennis, the ATP (Association of Tennis Professionals) doesn't officially recognize speeds from Challenger events. So, it's an incredible, yet unofficial, record. Still, that doesn't make it any less awesome, does it? 🎾💨 Dive deeper into the world of speedy serves at The Racket Sports.











