Andy Roddick holds the record for the fasted ever recorded serve. In a 6-1, 6-4, 6-4 Davis Cup win over Vladimir Voltchkov he recorded a 155 mph (249 km/h) serve.[1].
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/37996595735@N01">Luiz Eduardo</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/37996595735@N01/4769247">Flickr</a>