A balk is an illegal act by the pitcher while runners are on base, and the penalty is that every runner advances one base. The rule exists to stop pitchers from deceiving base runners with fake or interrupted motions. Common balks include not coming to a complete stop in the set position, faking a throw to first while on the rubber, and starting the pitching motion and then stopping. If no runners are on base, the same illegal act is usually called an illegal pitch and results in a ball instead.
Why the Balk Rule Exists
Base runners take a lead and time their jumps by reading the pitcher. Once a pitcher starts a motion that looks like a pitch, the runner has to be able to trust that a pitch is coming. Without the balk rule, a pitcher could start his delivery, freeze the runner or draw him off the base, and then throw behind him. The rule protects the runner’s right to react to what the pitcher’s body is telling him.
That is also why balks only matter with runners on base. With the bases empty, there is no one to deceive, so the equivalent violation becomes an illegal pitch.
The Most Common Types of Balks
The Official Baseball Rules list 13 specific balks. Most of them come down to a handful of situations you will see again and again.
| Balk | What it looks like |
|---|---|
| No complete stop | From the set position, the pitcher delivers without a clear, discernible pause |
| Starting and stopping | The pitcher makes a motion naturally associated with his pitch and fails to deliver |
| Faking to first on the rubber | A feint toward first base while still in contact with the rubber |
| Not stepping toward the base | Throwing to a base without first stepping directly toward it and gaining ground |
| Throwing to an unoccupied base | Throwing or feinting to a base with no runner, when there is no play |
| Dropping the ball | The ball slips out of the pitcher’s hand, accidentally or not, while he is on the rubber |
| Quick pitch | Delivering before the batter is reasonably set in the box |
| Separating the hands | Removing a hand from the ball after coming set, other than to pitch or throw |
| Pretending without the ball | Standing on or astride the rubber without the ball, or feigning a pitch without it |
| Unnecessary delay | Holding the ball to stall the game with runners on base |
Faking a throw to third while on the rubber used to be legal in MLB, but the rule changed in 2013, and it is now a balk as well. Faking to second base remains legal, because the rules allow a feint to second when a runner is there.
The Penalty for a Balk
Under the Official Baseball Rules, the ball becomes dead once the pitch or throw is complete, and each runner advances one base. The batter stays at the plate with the same count. There is an important exception: if the pitcher delivers the pitch anyway and the batter reaches first safely on a hit, error, walk, hit by pitch or otherwise, and every other runner also advances at least one base, the play stands and the balk is ignored.
This is sometimes called a delayed dead ball. It means a balk cannot take away a good outcome for the offense. If the batter hits a home run on a balked pitch, for example, the home run counts.
High school baseball is different. Under NFHS rules, a balk is an immediate dead ball, so the play stops right away and runners advance one base regardless of what happens with the pitch.
Balks and the Pitch Timer
Since 2023, Major League Baseball has limited how often a pitcher can disengage from the rubber during a plate appearance. Pickoff attempts and step-offs both count as disengagements. Once a pitcher has used his allowed disengagements, another pickoff attempt that does not retire a runner is ruled a balk. If a runner advances during the plate appearance, the count resets.
This is a newer kind of balk, and it has changed how pitchers and runners approach the game. Runners now take bigger leads once the pitcher has used his disengagements, knowing a throw over is risky for him. Minor leagues use similar rules, while many amateur leagues have no disengagement limit at all.
How to Avoid Balks: Practical Steps for Pitchers
- Build a consistent set position. Bring your hands together at the same height every time and hold them still for a clear pause. Umpires want to see the stop, not guess at it.
- Separate your pickoff moves from your delivery. Your first movement after coming set should commit you to one action: a pitch, a step toward a base, or a step off the rubber.
- Step off when in doubt. If you lose your grip, get crossed up with the catcher or feel unsure, step back off the rubber with your pivot foot. Once you are off, you are treated as an infielder and most balk rules no longer apply.
- Step toward the base before every throw. Your glove-side foot should clearly move toward the base you are throwing to, gaining both distance and direction.
- Wait for the batter. Do not rush a pitch while the hitter is still settling into the box.
- Keep the ball secure. Dry your hand and check your grip before you engage the rubber, especially in cold or wet weather.
- Practice with an umpire’s eye. Have a coach watch your set and pickoff moves from the angle an umpire would use, and film them if possible.
How Umpires Judge a Balk
Balk calls involve judgment. The umpire decides whether a stop was discernible, whether a motion was naturally associated with the pitch, and whether a step gained enough ground toward the base. Different umpires can see the same move differently, which is why pitchers are coached to make their moves obvious rather than borderline.
Enforcement also shifts over time. In 1988, MLB instructed umpires to strictly enforce the complete stop, and balk totals jumped to a record level that season before the emphasis was eased. The lesson for pitchers is simple: a clean, clearly legal move protects you whatever the umpire’s emphasis happens to be.
Rulebook note: The MLB balk rules are found in Rule 6.02(a) of the Official Baseball Rules, with disengagement limits in MLB’s pitch timer regulations. The NFHS rulebook governs high school play and the NCAA rulebook governs college play, and both differ from MLB on certain penalties and procedures. Always check the rulebook for your level.
Common Mistakes and Misconceptions
- Thinking a balk requires runners to be fooled. The umpire calls the illegal act itself, whether or not any runner was actually deceived.
- Believing balks can happen with the bases empty. With no runners on, the violation is an illegal pitch, which is called a ball.
- Assuming the pitcher can fake anywhere. A fake to second is legal, but fakes to first or third from the rubber are balks.
- Forgetting the delayed dead ball. In MLB and college baseball, a balk does not erase a hit or walk that advances every runner.
- Rushing after a lost grip. Pitchers who feel the ball slipping and keep going often balk. Stepping off first avoids the problem.
- Ignoring the disengagement count. In pro ball, a third unsuccessful pickoff attempt in the same plate appearance is a balk.
Frequently Asked Questions
What happens when a pitcher balks?
Every runner on base moves up one base, and the batter keeps his count. In MLB and college baseball, if the pitch is delivered and the batter and all runners advance at least one base anyway, the play stands instead.
Can a balk be called with no runners on base?
No. Without runners, the same act is treated as an illegal pitch, and the umpire calls a ball. A balk only exists when there is a runner who could be deceived.
Why can a pitcher fake a throw to second but not first?
The rules specifically allow a feint to second base when a runner is there, while fakes to first and third from the rubber are listed balks. The feint to second is usually part of a planned pickoff play with the middle infielders.
