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Are MLB balls rubbed with mud?

Author

Sarah Smith

Published Jan 11, 2026

Each ball in major and minor league baseball is rubbed with a special mud for the purposes of removing the shine and making it less slick.

Do they rub mud on MLB baseballs?

All MLB game balls have been rubbed down before the game using a special mud from a top-secret location somewhere in New Jersey. This has been true for games played in the American League since 1938 and for most major and minor league games in the U.S. since the 1950s.

Why are MLB baseballs rubbed in mud?

Baseball rubbing mud is mud used to treat balls in the sport of baseball to give pitchers better control and a firmer grip on the balls.

What do they rub on new baseballs?

Lena Blackburne Baseball Rubbing Mud has been used in the majors dating back to the 1930s to improve the grip and dull the shine of new baseballs. Before every game, dozens of baseballs are rubbed with this one-of-a-kind specialty product, derived from a secret source, by an umpire or other club personnel.

What kind of dirt does MLB use?

Today major league clubs often use a sports dirt mix called Beam Clay, made by Partac Peat Corp. Its dirts for the diamond, pitcher's mound, and home plate contain different ratios of red clay (for firmness) and orange sand (for drainage and softness).

28 related questions found

Where does MLB get the mud for the baseballs?

BURLINGTON CO., New Jersey (WPVI) -- When pitchers across Major League Baseball take to the mound, they rely on a secret ingredient that comes from a fishing hole in southern New Jersey. The special mud they put on the baseball is one-of-a-kind and has quite the history behind it.

What happens to MLB baseballs that hit the dirt?

These days these days any baseball that touches a dirt surface is pretty much immediately thrown out of play. Some of those balls are then used for batting practice and some are shipped to minor league teams. Of course the actual number of baseballs used each game will vary throughout each game of a season.

What does MLB do with used balls?

Umpires discard dozens of others after they've been dinged by a bat or bounced in the dirt. The Cardinals prepare 120 baseballs for every game. On an average game day, between 40 and 60 used baseballs will end up in the Authentics Shop.

Who runs the mud on MLB baseballs?

New Jersey mud. For nearly three quarters of a century, a special variety of Jersey muck, Lena Blackburne Baseball Rubbing Mud, has been removing the sheen from baseballs for just about every professional baseball team in the country.

Do umpires still rub baseballs with mud?

MLB's official rule book says that each ball must be “properly rubbed so that the gloss is removed.” And before each game, a clubhouse attendant rubs the balls to be used that night with the South Jersey mud.

How much does the ball boy make in MLB?

While ZipRecruiter is seeing annual salaries as high as $79,500 and as low as $13,500, the majority of Ball Boy salaries currently range between $23,000 (25th percentile) to $41,000 (75th percentile) with top earners (90th percentile) making $53,500 annually across the United States.

How much does a MLB ball cost?

The cost of every MLB baseball is somewhat around $7, and every year, about 1 million of these balls are sold.

How many balls get used in a MLB game?

It takes about 120 baseballs to play a Major League Baseball game today. 120 baseballs for nine innings of baseball seems a little excessive, yes? Of course you have your classic reasoning for needing so many baseballs. Home runs, foul balls, and your standard throwing a ball to a fan after the last out of an inning.

How much are home run balls worth?

According to TMZ Sports, several sports memorabilia auction houses are estimating that McGwire's home run ball may currently be worth as little as $250,000. According to Ken Goldin of Goldin Auctions, the home run ball is worth anywhere from $250,000 to $300,000 now.

Why do umpires throw out baseballs?

Under the rule's section e, an umpire is required to throw in an “alternate” (e.g., new) ball in at least three circumstances: 1). A ball has been batted out of the playing field or into the spectator area; 2). A ball has become discolored or unfit for further use; 3). The pitcher requests an alternate ball.

How do you scuff a baseball?

To scuff a ball, the pitcher marks one side with whatever's handy. (Some pitchers rub the ball against the ground or grate it on a sharpened belt buckle. Joe Niekro was caught with an emery board and a square of sandpaper stuck to his finger.)

Do MLB players buy their own bats?

Some MLB players do decide to get their own bats. But this is not the norm. Typically, equipment is bought for the players by their endorsers. In most cases, a prominent sporting company will endorse a player or their team.

How much does baseball mud cost?

(A “personal size” half-pound container of mud sells for $24.) Each MLB team gets 12 pounds for spring training and the regular season, he said. Dan Wallin, the Nats' equipment manager, said it takes him or a clubhouse assistant about 45 minutes to rub the mud on the 12 dozen baseballs that are prepared for a game.

How many balls does an umpire carry?

Generally, the pouches can easily hold about half a dozen balls each. Any more than that is problematic for a number of reasons, not the least of which is running from one base to another. Of course, it's a matter of personal preference, since some umpires use one bag and some two.

How much does an MLB umpire make?

Professional baseball umpires don't make quite as much as the MLB player minimum salary, but they're still well off financially. According to Career Trend, the starting rookie umpire salary is $150,000 and the more experienced umpires and senior umpires (like Joe West) rake in as much as $450,000 per year.

Who swings the shortest bat in the MLB?

The shortest MLB game-used bat we have yet to find is a Tony Gwynn's bat measuring just over 32 inches at 32 1/4.

How long does a baseball ball last?

Between 90 and 120 balls are used per game in the MLB, and the average lifespan of a baseball is just a few plays, or eight pitches – about a week in total, including batting practice.

Why do pitchers use Vaseline?

Pitchers use the “sticky stuff”, like pine tar, to improve the grip and increase the ball rotation. With vaseline, it's the other way around, the goal is to inhibit the rotation. Basically, it helps them throw one of the toughest pitches in baseball, the knuckleball.

Do umpires get World Series ring?

Umpires do get World Series rings. But they don't get the gigantic rocks with big garish diamonds. Umps get a modest ring for every World Series they work.