As of September 25th, 2010: The fastest pitch, recognized by MLB and not somebody's recollection, was on September 25, 2010 at Petco Park in San Diego by Cincinnati Reds left handed relief pitcher Aroldis Chapman. It was clocked at 105.1 miles per hour. Tony Gwynn Jr. was the batter and it was called a ball, inside.
The Fastest Pitch: There seems to be debate over who has thrown the fastest pitch in baseball, based on many varying factors.
According to Guinness: The Guinness Book of World Records states that Nolan Ryan holds the record for the fastest pitch ever thrown. He was officially clocked at 100.9 mph(over the plate) on August 20, 1974, versus the Detroit Tigers.
Other "fastest pitch" claims:
Armando Benitez 102.0 mph 2002 Shea Stadium
Randy Johnson 102.0 mph 07-09-2004 SBC Park
Robb Nen 102.0 mph 10-23-1997 Jacobs Field
Eric Sjoberg 104.62 mph St.Johns high school
Additional input from WikiAnswers contributors:
You're talking about in 1946 when they used a photo-electric cell device to clock Feller. They clocked him at 98.6 over home plate. There was a theory that the ball loses about 9 mph from release to home plate, so they added 9 mph to it and got 107, so it's not an official pitch speed. If you want to talk fastest from release instead of fastest over home plate, then Nolan Ryan did a similar test in 1974 using lasers where the ball was clocked at 100.9 over home plate, which is the speed in the Guinness World Record books because they haven't officially tested any one else yet. They added 7.2 mph to it to figure the release speed, so they came up with 108.1.
Nolan Ryan's speed calculations from efastball.com
"How did we arrive at 108.1 mph? The facts are 100.9 at 10 feet, plus 9 mph drop per 50 feet. So add 7.2 mph (9/50*40) to 100.9 to get 108.1 mph."
Feller's from efastball.com
"His fastest speed recorded was 98.6 mph, but the measurement took place at home plate, or 60 feet from release. To compare his speed to others, you must add the average 9 mph speed drop from 50ft to the plate. Therefore, his pitch speed was 107.6 mphat the equivalent 50 ft mark."
In the 1930's, the military brought their big radar machine to the ballpark to see how fast Bob Feller was pitching; they gunned him at 107 mph.
Nolan Ryan at 104 mph. They did a segment on sports science on ESPN and they determined that the human body is physically incapable of throwing 106 mph. This nulls the accusations of Bob Feller's 107 and Nolan Ryan's 106.
Joel Zumaya of the Detroit Tigers also hit 104, I believe, but Ryan's was just decimals faster.
Stephen Strasburg at 103.
Nolan Ryan threw a Four seam fastball at 101 mph.
Nolan Ryan threw the ball 106 mph while playing in the MLB.
MLB does not recognize radar gun speeds as an official statistic. The fastest pitch I can remember was by Joel Zumaya of the Detroit Tigers that was clocked at 103 mph.
112 by John Smoltz
I'll defer to the Baseball Almanac, cited in the first answer. More impressive, however, was J.R. Richard's 98 mph slider during an All-Star appearance!
Mark Wholers 103.0 mph in spring training 1995
Joe Speer of the Niagara falls Rapids (Detroit Tigers single A minor league team) threw a pitch 107 mph.
Some say Satchel Page threw harder than Ryan, but the fastest pitch ever recorded was 101, by none other than Nolan Ryan.
The fastest pitch ever thrown clocked officially was 78 MPH.
The fastest pitch thrown at Fenway Park was 108 mph.
105 mph is the fastest fast ball ever thrown in baseball.
the fastest pitch ever recorded was 93.2 in the 1996 olimpics!!!
I play softball so i should know ! The fastest pitch ever thrown by a woman was 80 something mph.
The fastest pitch ever thrown in a major league game was by Aroldis Chapman and it was 105 M.P.H. in his rookie season. Others who have thrown over a 100 M.P.H. are Joel Zumaya and Nolan Ryan.
The fastest pitch ever to be recorded was thrown before radarguns were invented but was measured in recent years and was said to have been thrown at 116 mph by Satchel Paige. (this pitch of course was thrown after the Negro leagues were terminated and he entered the MLB for the Baltimore Orioles)
107 miles per hour.
Aroldis Chapman for the Cincinatti Reds threw a 106mph that is believed by many to be the fastest pitch ever.
2010 Chapman 105 mph fastball
It was 130 miles per hour by a fast pitch softball player.
The fastest pitch ever thrown by a 12 year old that was recorded was Zach Ours, who threw 78 MPH.
Sadly no one has ever kept record for this
113 mph by Benny Blanco from the Bronx
My brother is six and he throws 35-37mph
105.1 mph by Aroldis Chapman of the Cincinnati Reds on September 24,2010.
Yes, the fastest pitch ever recorded was thrown by Reds pitcher Aroldis Chapman on April 18, 2011; it was clocked at 106 MPH.
107 mph ted Lilly cubs 6/26/10 i think
The fastest ball ever thrown in international cricket is at 154KMP by Shoib Akthar of pakistan.