mph

[Ry9770]

Sorry i didn't know where to post this topic. I was wondering if you threw a fastball 20 feet from home plate and it registered 70 mph and you threw it with the same exact speed from 50 feet, would the mph be the same?

[Maxx]

If you threw it at the exact same speed, how could the MPH be different???? MPH measures speed, doesn't matter what the distance is, 20 feet, or 200 feet.

[PitchingProfessor]

If you threw it at the exact same speed, how could the MPH be different???? MPH measures speed, doesn't matter what the distance is, 20 feet, or 200 feet.I think he means on a radar gun...but yes, I believe it would register the same.

[Ry9770]

If you threw it at the exact same speed, how could the MPH be different???? MPH measures speed, doesn't matter what the distance is, 20 feet, or 200 feet.

Oh. So if i throw 100 mph from 20 feet, i would throw 100mph from 200 feet as well if i throw it the same way way as i threw the 20 feeter?

[Giuseppe]

Sorry i didn't know where to post this topic. I was wondering if you threw a fastball 20 feet from home plate and it registered 70 mph and you threw it with the same exact speed from 50 feet, would the mph be the same?
Interesting question!
Probably, just because the less flight of the ball creates less deceleration, the 50 feet ball is faster?
Another question:
When and where, in a pitched ball flight, the ball reaches maximum speed?
1) at the very point of release.
2) at the middle of the flight.
3) when the ball reaches catcher's mitt.

[PitchingProfessor]

I think it would be at release point or middle of ball flight.

[Giuseppe]

I think that ball starts to decelerate just after leaving pitcher's hand.
Anybody know a radar gun that can calculate the peak velocity and the average velocity of a pitched ball?

[Ry9770]

I still don't understand. I threw a 4 seam fastball inside my house lol. It was very close and it register at 50 mph. So if i were to throw on a real diamond( 46-50 feet mound) with the same arm speed i threw inside my house, would the pitch register to be 50 mph?

[Maxx]

If the conditions were the same--i.e. wind speed, mound height, etc, then yes, the speed would be the same in your basement and outside.

Also, I should have clarified in my first post, the radar gun would have to be in the same position to get the same reading. If you threw at 20 feet and then 200 feet, but the radar gun was located at the END of each throw, obviously the MPH is not going to be the same due to the deceleration of the ball. The mph will be the same at the exact same point after release of the ball, IF you are throwing with the same force.

[Giuseppe]

we need Adair's, or Nathan's, opinion!
I think the answer is YES if you use the same radar gun in your house and in the field, or if you pitch from a shuttle because in the space no air could decelerate your pitch.

[Ry9770]

I used a device that you ttach to a glove. Once the ball is thrown, and the ball is caught, the mph is registered. I guess i would throw slower if i used the same method on a real diamond. where do HS teams and the MLB place the radar gun?

[Maxx]

Somewhere behind the plate.

[Giuseppe]

"Sportvision’s PITCHf/x System utilizes sensor cameras to measure the position of the baseball to better than 1/2 inch to the exact location of the ball. Thus, PITCHf/x is the most accurate method of tracking the flight of the pitch from the time it starts to break -- 40 feet from home plate -- to the time it crosses home plate.

Having accurately measured the position of the ball many times during its flight from the pitcher to home plate, the PITCHf/x System determines the position of the ball, speed of the ball and acceleration for a particular pitch, enabling Sportvision to reveal the break in a particular pitch. This data reveals everything about the trajectory (flight path) of the ball."
http://www.sportvision.com/

[3rdgenerationnation]

This is painful. Pitches are usually measured right near release so you are getting a near max reading. the distance you throw from would not alter the measured speed. I've seen catchers MPH measured as they throw into a screen set 10' in front of them. the reading would be the same if they were measured throwing down to second.

[Ry9770]

Omg I Am So Confused Lol

[Maxx]

oh my...... :crazy

[Ry9770]

Okay. Can someone please thouroghly explain it for me?

I threw a baseball about 12 feet from a baseball glove. The mph device was attached to the glove and it registered 56 mph. If i threw a ball on a diamond would the ball register 56 mph is the radar gun were attaqched to the catcher mitt? Also where do Major Leaguers and Hs teams place the radar gun to find out mph. Also about how much would my mph grow by the time my arm is fully developed? Im 14

[Richmond Hill Phoenix]

I threw a baseball about 12 feet from a baseball glove. The mph device was attached to the glove and it registered 56 mph. If i threw a ball on a diamond would the ball register 56 mph is the radar gun were attaqched to the catcher mitt? Also where do Major Leaguers and Hs teams place the radar gun to find out mph. Also about how much would my mph grow by the time my arm is fully developed? Im 14First of all, I don't think you are using a radar gun. From the sounds of it you're using a device that measures the impact, and then translates that into MPH. It is measuring the speed at the time when it hits the glove.

As a ball flies through the air, it encounters friction from the air. Thus, it slows down. So if you threw into the mitt from pitching distance, the ball would have slowed down alot more. Thus, it would not read 56 MPH but much slower.

As for where the Pros place their radar guns, they're behind the plate. I assume they measure the speed at the point of release.

I really hope that settles it :rolleyes:.

[Ry9770]

First of all, I don't think you are using a radar gun. From the sounds of it you're using a device that measures the impact, and then translates that into MPH. It is measuring the speed at the time when it hits the glove.

As a ball flies through the air, it encounters friction from the air. Thus, it slows down. So if you threw into the mitt from pitching distance, the ball would have slowed down alot more. Thus, it would not read 56 MPH but much slower.

As for where the Pros place their radar guns, they're behind the plate. I assume they measure the speed at the point of release.

I really hope that settles it :rolleyes:.

Where can i find out my mph?

[Billybob622]

Okay. Can someone please thouroghly explain it for me?

I threw a baseball about 12 feet from a baseball glove. The mph device was attached to the glove and it registered 56 mph. If i threw a ball on a diamond would the ball register 56 mph is the radar gun were attaqched to the catcher mitt? Also where do Major Leaguers and Hs teams place the radar gun to find out mph. Also about how much would my mph grow by the time my arm is fully developed? Im 14

1. no it would not be the same when measuring true speed. friction from air will slow the ball down as said above.

2. 3rdgenerationnation is trying to explain that no matter what distance you are from, the radar gun measures speed from the release point, therefore, if you throw 56mph from 12ft, it will appear 56mph from the mound, because it is measuring the speed the ball is at the release point, not at where the ball is caught.

3. As for telling how much mph you will gain, it's hard to tell. Everyone develops different.

[Ry9770]

[QUOTE=Billybob622;862727]2. 3rdgenerationnation is trying to explain that no matter what distance you are from, the radar gun measures speed from the release point, therefore, if you throw 56mph from 12ft, it will appear 56mph from the mound, because it is measuring the speed the ball is at the release point, not at where the ball is caught.
QUOTE]

Wait. Since i threw 56mph from about 12 feet, it would register 56 mph hours as well in the Major League level even thought the mound is 50 sumthing feet from home plat?

[beisbolcrazy22]

If the radar reads the same speed not dependant on distance, why is it that when they clock the pitchers in the little league world series, they make adjustments to show what their speed is compared to MLB speed?

[Maxx]

If the radar reads the same speed not dependant on distance, why is it that when they clock the pitchers in the little league world series, they make adjustments to show what their speed is compared to MLB speed?


That's not based upon a change in speed, it's based upon the amount of reaction time necessary to hit a pitch at a certain distance. For example, hitting a 60 mph pitch at 40 feet would be the equivalant of hitting a 90 mph pitch at 60 feet in terms of the reaction needed to hit the ball. By the way, I am just using some sample numbers to demonstrate my point....

[Billybob622]

[QUOTE=Billybob622;862727]2. 3rdgenerationnation is trying to explain that no matter what distance you are from, the radar gun measures speed from the release point, therefore, if you throw 56mph from 12ft, it will appear 56mph from the mound, because it is measuring the speed the ball is at the release point, not at where the ball is caught.
QUOTE]

Wait. Since i threw 56mph from about 12 feet, it would register 56 mph hours as well in the Major League level even thought the mound is 50 sumthing feet from home plat?

depends. If the speed at release point is measured then yes. But if the speed at homeplate is measured, then no. the speed will be slower due to friction from air.

p.s. the mound is 60' 6" at the highschool level and up. if ur in a pony league, it's 54ft. And the little league is 45 or 46ft?

[Ry9770]

[QUOTE=Ry9770;862733]

depends. If the speed at release point is measured then yes. But if the speed at homeplate is measured, then no. the speed will be slower due to friction from air.

p.s. the mound is 60' 6" at the highschool level and up. if ur in a pony league, it's 54ft. And the little league is 45 or 46ft?

MLb doesnt measure release point rite?

[Jesse]

I'm eyeballs deep in a College Physics course right now so I'll try to give some insight into the physics of this. Hopefully I don't confuse the issue more.

Assuming no resistive forces, any launched projectile will be travelling the same speed at the end of its trajectory as it did at its launch point. Gravity causes vertically moving objects to accelerate (if falling, in the same direction as gravity) or decelerate (if thrown upward, against the direction of gravity). Gravity has no effect on the horizontal velocity of a launched object.

In reality, there is a resistive force acting on the ball, which has already been mentioned: air resistance. Even on a windless day, the ball has to cut through millions of air molecules (and dust particles, etc.) to reach its destination. The farther it travels, the more of its kinetic energy is lost due to "collisions" with these molecules, which results in a steady loss of velocity (aka negative acceleration, or deceleration). Therefore, it stands to reason a ball pitched in a vacuum would be traveling the exact same speed for its entire trajectory. A ball pitched during a rainstorm or on an extremely humid day would experience greater loss in velocity than a ball pitched on a calm day with low humidity.

As I understand it, from a pitching standpoint, this deceleration only results in a few mph difference from release point to destination. In other words whatever you clock yourself as, from whatever point, is going to be pretty darn close to your actual speed. If you clock yourself throwing inside, in a climate-controlled environment, you'll probably get more accurate results.

[Ry9770]

I'm eyeballs deep in a College Physics course right now so I'll try to give some insight into the physics of this. Hopefully I don't confuse the issue more.

Assuming no resistive forces, any launched projectile will be travelling the same speed at the end of its trajectory as it did at its launch point. Gravity causes vertically moving objects to accelerate (if falling, in the same direction as gravity) or decelerate (if thrown upward, against the direction of gravity). Gravity has no effect on the horizontal velocity of a launched object.

In reality, there is a resistive force acting on the ball, which has already been mentioned: air resistance. Even on a windless day, the ball has to cut through millions of air molecules (and dust particles, etc.) to reach its destination. The farther it travels, the more of its kinetic energy is lost due to "collisions" with these molecules, which results in a steady loss of velocity (aka negative acceleration, or deceleration). Therefore, it stands to reason a ball pitched in a vacuum would be traveling the exact same speed for its entire trajectory. A ball pitched during a rainstorm or on an extremely humid day would experience greater loss in velocity than a ball pitched on a calm day with low humidity.

As I understand it, from a pitching standpoint, this deceleration only results in a few mph difference from release point to destination. In other words whatever you clock yourself as, from whatever point, is going to be pretty darn close to your actual speed. If you clock yourself throwing inside, in a climate-controlled environment, you'll probably get more accurate results.

wow i actually understood that. So my 56 mph will slow down a few mph if i throw from a 60 foot mound instead or 12 feet rite?

[EdmondsFan#1]

MLB registers the pitch speed a few inches from their release point.

Because the world record for fastest official pitch thrown it says in wikipedia is Nolan Ryan's 101.9 but that was registered when it hit the glove.

If you threw, say, 70 mph from 10 ft and then threw with the exact same motion, arm speed, etc. from 50 ft and your registering the speed of the ball when it hits the glove then at 50 ft the reading will not be as fast as at 10 ft. Because of deacelleration.

[Jesse]

wow i actually understood that. So my 56 mph will slow down a few mph if i throw from a 60 foot mound instead or 12 feet rite?
That's right. At 12 feet you're not going to see much loss in velocity at all, whereas at 60 feet the loss will be more pronounced.

[bugboy900]

i have a radar gun and wherever u are i doesnt matter. the gun calculates the actual speed.

[Maxx]

this is the most insane thread in quite some time.......

[Jesse]

i have a radar gun and wherever u are i doesnt matter. the gun calculates the actual speed.
Of course it does. But which actual speed?

[FindAGap12]

[QUOTE=Billybob622;862818]

MLb doesnt measure release point rite?


Every MLB gun reading on TV is at release point. They release the ball at, say, 94 MPH, it crosses home plate at about 87. If they threw a ball from the outfield at 94, it would cross home plate at about 70. But the radar gun reading that everyone refers to is the initial speed out of the hand, so Pitchers would have the same gun reading on a Little League mound as they would on a MLB mound.

[Ry9770]

[QUOTE=Ry9770;862847]


Every MLB gun reading on TV is at release point. They release the ball at, say, 94 MPH, it crosses home plate at about 87. If they threw a ball from the outfield at 94, it would cross home plate at about 70. But the radar gun reading that everyone refers to is the initial speed out of the hand, so Pitchers would have the same gun reading on a Little League mound as they would on a MLB mound.

Where can i find out how fast i am pitching? I don't want to buy a radrar gun because it costs so much.

[iamdiesel18]

Every MLB gun reading on TV is at release point. They release the ball at, say, 94 MPH, it crosses home plate at about 87. If they threw a ball from the outfield at 94, it would cross home plate at about 70. But the radar gun reading that everyone refers to is the initial speed out of the hand, so Pitchers would have the same gun reading on a Little League mound as they would on a MLB mound.

This would be correct. A typical radar gun will pick up the maximum speed of the ball which is at release point. The Stalker Pro radar gun is one that has two readings on it. One is the peak velocity (release point) and the other is as the ball crosses the plate. If you watch a game on MLB.com's Gametracker you will see the same thing. They have release speed and speed as the ball crosses the plate. For a fastball, the difference between the two readings is normally around 10 mph. Therefore a pitcher will release a ball at 90 mph and it will cross the plate at 81 mph.

Pitchers that have fastballs that "jump" or "rise" throw a fastball that maintains its velocity better than other pitchers' fastballs. For example, Nolan Ryan's fastball would cross the plate 5-6 mph slower than it was traveling at release point. Seeing as how hitters are used to the ball slowing down 10 mph as the ball crosses the plate, you can see how a fastball that only slowed down 5 mph would give the impression that it speeded up or jumped. As for the wikipedia thing on Nolan Ryan throwing 101.9 as the ball crossed the plate, I would have to say that that is wrong. You definately can't believe everything you read on that site. That means that he would have had to release that ball at upwards of at least 107/108 mph.

[Ry9770]

This is the radar gun is use http://www.modells.com/product/index.jsp?productId=307871&cp=&keywords=radar+gun&searchId=20443533161&clickid=topnav_search_img&parentPage=searchDoes this measure release or the time when the ball hits the mitt.

[Richmond Hill Phoenix]

Taken straight from the website:
Attached to the back of a ball glove, the Sport Sensors Glove Radar® measures the speed of an approaching ball a few feet before it is caught to help you better judge ball velocity.

[Ry9770]

Does this one record mph at release or impacet?It says both so im confused. http://www.modells.com/product/index.jsp?productId=2481943&cp=&keywords=radar+gun&searchId=20449431661&clickid=topnav_search_img&parentPage=search

I think its impact becaause i have one simliar ball that i found. When i threw it it said 55 mph but sometimes it said 70 or 37.....So im not sure if its release or impact.

[Richmond Hill Phoenix]

For that one, I'd guess impact.

If you really care to know that much, here's a $118 radar gun.

http://www.radargunsales.com/Bushnell-Velocity-Radar-Gun.html

[Jake Patterson]

Sorry i didn't know where to post this topic. I was wondering if you threw a fastball 20 feet from home plate and it registered 70 mph and you threw it with the same exact speed from 50 feet, would the mph be the same?


This is an old discussion on slow guns versus fast guns. A fast gun measures out of arm speed while a slow gun measures the ball further down the line. The answer to your question is yes it will measure differently depending upon where you take the measurement.

[Ry9770]

This is the radar gun is use http://www.modells.com/product/index.jsp?productId=307871&cp=&keywords=radar+gun&searchId=20443533161&clickid=topnav_search_img&parentPage=searchDoes this measure release or the time when the ball hits the mitt.

A few days ago i went to the park and pitched a few fastballs. It registered around 55 mph. Since the radar device i use measures speed a few feet from impact, about how fast would have been my 55 mph pitch at release point? Im guessing 58? I dont know though. Also i think the mound was 54 feet rom home.

[yuniesky4prez]

OKAY::: I have been reading this and its time to make my point.

From a pitchers perspective.

Each time you throw a 50 MPH fastball from 25 feet or 60 feet it is the same.

From a batters perspective.

The closer you are, the faster it looks.

[Ry9770]

OKAY::: I have been reading this and its time to make my point.

From a pitchers perspective.

Each time you throw a 50 MPH fastball from 25 feet or 60 feet it is the same.

From a batters perspective.

The closer you are, the faster it looks.

Its the same at release point. Impact is slower