⚡️The fastest recorded serve in tennis history was S Groth's 163 mph serve struck at the Challenger level, but it is not counted as the official record due to potential speedometer inaccuracies.
🔥Sam Groth, who hit the fastest serve ever recorded, has never been able to replicate that speed in other matches, casting doubt on the accuracy of the speed measurement.
💨Speedometers at Challenger level tournaments are known to be less reliable, making it difficult to consider serves at this level for official records.
🎾Serves by players like Del Potro and Davidovich Fokina with alleged speeds of 149 and 156 mph, respectively, are questionable due to their lack of consistency and slower average serve speeds.
📏The list of the top 10 fastest serves in tennis history comprises serves that have been backed by reliable speed measurements and demonstrated noteworthy consistency.