Milos Raonic...with a serving speed of 225km/h
70mph
No, the ball can be served at any speed the server chooses.
Men's tennis.
The fastest ever serve recorded; 251 Km/h, was by Ivo Karlovic.
Jai-alai
The fastest speed in the NHL is obtained by bobby hull and I don't know how fast it was.
Sabine Lisicki ---- 130 Mile/hr,,,,,,, (2009 commonwealth bank)
In terms of field speed, Devin Hester.
Devin Hester= Speed 100 DeAngelo Hall= Speed 99
The record for the fastest ace is held by Ivo Karlovic who served a 156 mph (~251 km/h).
Devin Hester= Speed 100 DeAngelo Hall= Speed 99
The fastest non-mechanized sport in the world is ski racing or speed skiing. Second would be a tennis serve. The speeds reached in speed skiing are approximately 162 mph, and 262 kph