Fastest swimmer - Tom Jager is currently the world's fastest swimmer, attaining an average speed of 5.37 mph when completing the 50 yd freestyle (in a 25 -yard pool) in 19.05 sec at Nashville, TN on 23 Mar 1990. The following day he also set a new world record for 50-m freestyle of 21.81 sec in a 50-meter pool. (Photo: All Sport/Tony Duffy)
