American Tyson Gay was second in a time of 9.71, with Jamaica’s Asafa Powell claiming bronze in 9.84.
British sports oddsmaker, Hills, offer 14-1 that by the end of the 2012 Olympics, the world record for 100m will be 9.39sec or lower. Sky Bet had 12-1 against cracking 19 seconds (before and for the last race where Bolt went 19.19). So people money on the line have 7-10% chances of getting 100 meters time down to 9.39 and 200 meters to below 19 seconds.
The maximum for a person running on two legs: Professor Peter Weyand, Southern Methodist University (Texas), known for his expertise in terrestrial locomotion and human and animal performance says that humans would soon have the ability to modify and greatly enhance muscle fibre strength. This would enable speeds of 45 miles per hour and 5 seconds times for 100 meters.
The fast four-legged runners or quadrupeds do seem to be advantaged versus bipeds in terms of the mechanics allowed by their anatomy. So to go even faster would require people to successfully adopt the running mechanics of four legged animals (running on hands and feet).
Wearable Enhancement and Some Practice For Your Fastest Sprint
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9.58 Seconds for 100 Meters in Miles per Hour (MPH)
* 9.58 seconds for 100 meters.
* 154.14 seconds to run 1609 meters (1 mile)
* 23.35 mph for Usain Bolt
* Tyson Gay 23.04 mph as the next fastest man ever
* A ten second 100 meters is 22.37 mph
As of July 2009, 69 sprinters have broken the 10-second barrier with an official, legal time. Nearly all the sprinters who have beaten the 10-second barrier are of West African descent (with the exceptions of Australian runner Patrick Johnson and Namibian Frankie Fredericks).
It was only in 1983 that there was a sub-10 second time at low altitude.
The 10-second barrier is a term used in track and field athletics which refers to the physical and psychological barrier of completing the men’s 100 metres sprint in under ten seconds. The achievement was traditionally regarded as the hallmark of a great sprinter, but its significance has become less important since the late 1990s as an increasing number of runners have surpassed the ten seconds mark.
The International Association of Athletics Federations states that runs are only legal if achieved with the use of fully automatic timing, a wind speed below 2.0 m/s, and without the use of performance enhancing substances. Wind gauge malfunctions or infractions may also cause sprinters’ runs to be invalid.
The first sub-10 second finishes were recorded through the use of manual timing by stopwatch. Following the introduction of electronic timing, which is a more accurate timing method, the barrier was first officially broken by American athlete Jim Hines on 14 October 1968. He ran a time of 9.95 seconds to win the 100 metres at the 1968 Olympics, setting a new world record. Almost nine years passed before the barrier was broken again; Silvio Leonard ran 9.98 seconds on 11 August 1977. Both of these marks were recorded at a high altitude, which aids performance. Carl Lewis was the first sprinter to achieve the feat at a low altitude, with 9.97 seconds on 14 May 1983. Calvin Smith recorded a world record 9.93 seconds on 3 July 1983, and also became the first sprinter to run under ten seconds twice, repeating the feat in August that year.
A number of athletes broke the barrier during the 1980s but the 100 m final at the 1991 World Championships represented a new zenith in the event: six athletes ran under ten seconds in the same race, and winner Carl Lewis lowered the world record to 9.86 seconds
Cheetah fastest land animal and can reach speeds between 112 and 120 km/h (70 and 75 mph)