
Changing use of foreign substances
Now that the season is over, Bauer started a conversation on Twitter recently. He started by saying he’s surprised how often people tell him to use pine tar so he’ll pitch better. He pointed out that using a foreign substance on the ball is illegal, but it does make your pitches more effective and “pitchers league wide abuse it.” This led to a poll:
“Knowing this, how do you feel about it? Would you rather your favorite pitcher use it or no?”
Im surprised how often people tell me to use pine tar so I’ll pitch better. Facts: using foreign substance is illegal, it makes your stuff much much better, pitchers league wide abuse it. Knowing this, how do you feel about it? Would you rather your favorite pitcher use it or no?
— Trevor Bauer (トレバー・バウアー) (@BauerOutage) October 30, 2018
Rob Friedman (@PitchingNinja) followed with the official rules of Major League Baseball regarding a foreign substance on the ball. John Thorn (@thorn_john), the Official Historian for Major League Baseball, explained why the rule was put in place to begin with.
According to Thorn, “Cut balls (Clark Griffith scraping the ball against his spikes, Russ Ford’s emery ball, etc.) were thought unfair. Balls dripping in saliva or slippery elm were thought unsavory. So few mastered such pitches, though, that effect on batters had no part in ban.”
When the rule was created 100 years ago, it wasn’t meant for pitchers getting a better grip on the ball. Bauer pointed out that there was no knowledge of spin rates back then. At the time, the spitball was the main pitch to be outlawed and throwing a spitball isn’t about increasing the spin rate. Spit, slippery elm, Vaseline, K-Y Jelly, etc. were used to reduce friction between the fingers and the ball, not enhance the pitcher’s grip on the ball.
Using something slick on the ball doesn’t magically make a pitcher better. It’s an art. Pitchers need to learn how to make the ball drop by using a slick substance. When I was a kid, famous spitballer Gaylord Perry signed with Seattle Mariners, my hometown team. In fact, he won his 300th game with the M’s.
I was a young pitcher at the time. I heard Perry used Vaseline to throw his spitter, so I tried it myself and it did nothing. I had no clue what to do with it other than sneak it onto my fingers before throwing a pitch. I got no movement, no sink, no drop, nothing because I didn’t know how to throw it.
Using pine tar is also different from scuffing or cutting the ball. When a pitcher scuffs or cuts the ball, it’s done to make the ball move differently than it would without the scuff. Former MLB pitcher Dick Hayhurst wrote about scuffing the ball late in his career as a matter of survival after his stuff was diminished. He could get the ball to move left or right or, most important for him when he needed a ground ball, drop.
Pine tar isn’t about getting the ball to drop or run or drift. It’s about getting a better grip on the ball to increase the spin rate, which, as mentioned above, makes the ball drop less than it would with a lower spin rate. It’s not about a drastic change in movement, like a scuffed ball. There could conceivably be a line drawn between using a substance to make the ball move and using a substance to allow the pitcher to get a better grip, should MLB decide to make that distinction.
Based on old documents, Friedman created a list of reasons why a foreign substance was prohibited:
- 1. It is unsanitary.
- 2. It is hard to control.
- 3. It is dangerous.
- 4. It is difficult to field.
- 5. It is hard on the pitcher’s arm.
- 6. It depresses hitting.
Fast forward 100 years and consider how many of the above reasons are still relevant when it comes to using a sticky substance on the ball to get a better grip. It’s not unsanitary, hard to control, dangerous, difficult to field or hard on a pitcher’s arm. It does depress hitting, but many hitters seem fine with pitchers using it, as can be seen by the quote from Adam Jones and other current hitters.

House That Hank Built
In the Twitter thread, Freidman asks whether using something to get a better grip on the ball should continue to be illegal. Bauer added, “Once everyone used it the hitters in the league would adjust to a new norm and the advantage of high spin would fade.” He added: “tons of people are already using it.”
There’s also the consideration that hitters use pine tar to get a better grip on the bat, which is legal and very common, so why shouldn’t pitchers use pine tar to get a better grip on the ball? Admittedly, it’s likely more of an advantage for pitchers gripping the ball than for hitters gripping the bat, but we don’t really know if that’s the case or, if it is, how much more of an advantage.
It’s an interesting question. Should using a grip enhancer continue to be illegal in the baseball world? I believe most people would still say yes, even though the rule is rarely enforced because the people actually on the field playing the game don’t seem to want it enforced. Many baseball fans are resistant to change, so it would be hard to come around on the idea that something that’s been illegal for nearly 100 years should be made legal.
As for Bauer’s poll question on Twitter–“Facts: using foreign substance is illegal, it makes your stuff much much better, pitchers league wide abuse it. Knowing this, how do you feel about it? Would you rather your favorite pitcher use it or no?” With nearly 24,000 votes in, 66 percent of respondents chose “No foreign substance.” What do you think?