# What is the diameter of a baseball?

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A regulation baseball is 9–​9 1⁄4 inches (229–235 mm) in circumference (​2 55⁄64–​2 15⁄16 in. or 73–75 mm in diameter), with a mass of 5 to ​5 1⁄4 oz.

## What is the diameter of a baseball in centimeters?

According to The Physics Factbook online, the standard diameter for a baseball is about 7.3 centimeters. The radius would be 3.65 centimeters.

## Are all baseballs the same size?

Size: Baseballs vs. Softballs – Baseballs measure up to 9-1/4 inches in circumference, and weigh about 5-1/4 ounces. Unlike baseballs, which are all the same size regardless of league, softballs come is a variety of circumferences: 16-inch, 14-inch, 12-inch (standard), 11-inch, and 10-inch.

## What is the circumference of baseball?

The ball has a cork-and-rubber core, around which yarn is tightly wrapped; the cover consists of two snugly fitted pieces of white leather sewn together. The circumference is 9 to 9.25 inches (23 to 23.5 cm) and the weight between 5 and 5.25 ounces (142 and…

## What type of baseball is used in MLB?

For over 40 years Rawlings has been the exclusive supplier of baseballs to the Major Leagues. Every Rawlings ROMLB baseball is carefully crafted with the finest materials available and assembled, weighed, measured, tested and inspected for the highest possible level of quality and consistency.

## How big is a standard baseball?

A regulation baseball is 9–​9 1⁄4 inches (229–235 mm) in circumference (​2 55⁄64–​2 15⁄16 in. or 73–75 mm in diameter), with a mass of 5 to ​5 1⁄4 oz.

## What is the standard size of the ball?

Basketball sizes vary by age, gender, and level of play. The official size of the basketball used by the NBA is 29.5 inches in circumference. That’s the same size used throughout men’s college and high school basketball leagues. The WNBA uses a slightly smaller ball, measuring 28.5 inches in circumference.

## Why is there 108 stitches on a baseball?

In total, 108 hand-stitched double stitches are used to cover the baseball. At the MLB level, these red stitches and the rest of what is used in a baseball are stored in temperature controlled facilities and wound under tension so no “soft spots” exist in the ball, according to Smithsonian Magazine.

## How heavy is a high school baseball?

Little League Baseball, the National Federation of High School Associations, National Collegiate Athletic Association and Major League Baseball each stipulate that the ball must weigh between 5 and 5 1/4 oz.

## Who is the father of baseball?

Henry Chadwick (October 5, 1824 – April 20, 1908) was an English-American sportswriter, baseball statistician and historian, often called the “Father of Baseball” for his early reporting on and contributions to the development of the game. He edited the first baseball guide that was sold to the public.

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## What is baseball stitching called?

The stitches on a Major League baseball are called virgules.

The stitches on a baseball are simply referred to as a seam; e.g. two-seam fastball, four-seam fastball, etc. 88 inches of red waxed thread are used to stitch each baseball.

## What size baseball does 10U use?

Rawlings 10U Baseballs 24-Pack.

## How many stitches are in Major League Baseball?

The process of assembling a baseball involves two types of workers: assemblers (who assemble the core parts of the baseball) and sewers (who stitch the cowhide covers onto the baseball by hand). There are 108 stitches in the cowhide leather of each ball, and each is done by hand.

## How much does a baseball cost the MLB?

According to a MLB equipment manager, an average of 8 to 10 dozen baseballs are used each game. Baseballs cost about six dollars each including shipping.

## What happens to used baseballs in MLB?

Most used baseballs from MLB games are thrown in the barrel for batting practice. … Some are used for batting and fielding practice. Some are sent to the minor league affiliates for batting practice and fielding practice. Some are sold to fans for souvenirs.

## Why do they change baseballs when it hits the dirt?

The main reason that umpires replace baseballs that are pitched in the dirt because of the advantage that it could give to the pitcher to pitch with a scuffed baseball. Pitchers can use a scuffed baseball to induce more movement on the baseball.