The Intentional Walk Rule: From Four Pitches to a Signal
Since 2017 a manager can send a batter to first base with a signal instead of four wide pitches. This guide covers the rule, the strategy behind the intentional walk and what league-wide counts show about its use.
Until 2017, an intentional walk was a small piece of choreography. The catcher stood up and stepped to one side of the plate, and the pitcher threw four balls well outside the strike zone while the batter watched. Everybody in the park knew what was happening. Since the 2017 season, the same result takes a few seconds: the manager signals the plate umpire from the dugout, the batter trots to first base, and no pitch is thrown.
The rule change was small and its effect on the game is smaller than most people assume. The numbers in this article show that intentional walks were already becoming less common before 2017, and that the rule itself did not change the trend. That is worth knowing because the change is usually remembered as a landmark in the effort to speed up games. It was a landmark in symbolism more than in minutes saved.
What the rule did do was cut away a small ritual and put the focus where it belongs: on why a manager would give a batter first base for free, and when that is a good idea. This guide covers the rule as it works today, how it worked before, what the counts show, and the baseball logic of the decision.
What the rule says now
Under the current rule, which took effect with the 2017 season, the defensive manager can communicate to the home-plate umpire that he wants to intentionally walk the batter. The umpire then awards the batter first base. No pitches are thrown, the count is irrelevant, and runners advance only if forced, exactly as they would after four balls.
Four points explain how this plays out in practice:
- The manager decides, not the pitcher or catcher. The signal comes from the dugout, and the umpire waves the batter to first base.
- It is normally used before the first pitch, so the count never comes into it. The umpire does not need pitches to reach the same result.
- The walk is recorded as an intentional walk. The batter is charged with a walk and an intentional walk, and the statistic is kept separately in the record books.
- Forced runners advance. With the bases loaded, an intentional walk forces in a run, which is why it is almost never used in that situation.
Other plate-appearance rules did not change. A manager who wants to pitch around a batter without conceding first base still can, by throwing pitches off the plate and hoping the batter chases. If a walk results, it is an ordinary base on balls, and the signal is now the standard way to issue an intentional one.
The way it used to work
Before 2017, the defensive team had to throw four pitches outside the strike zone, and everyone involved had to behave as if the sequence might go wrong, because it sometimes did. The catcher was allowed to stand outside the catcher's box before the pitch. The pitcher threw the ball to the catcher's glove, usually wide of the plate. The umpire counted four balls, and the batter took first.
The risks were small but real. A pitch that strayed could become a wild pitch, moving a runner up a base, and a pitch thrown too close to the plate could be hit. Both cases are rare, and they are the sort of thing that is remembered for decades because they are so odd. The more common cost was time: four pitches, with the usual pauses between, in a game the league was trying to speed up.
The ritual also left a batter with one option. If a wide pitch was within reach, he could swing at it, and a pitcher who drifted a little too close to the strike zone gave him the chance. The signal removes that possibility.
Why the league changed it in 2017
The change arrived as part of a broader effort to shorten games and sharpen the pace of play. Intentional walks were an easy target because they involve no decision by the batter, no skill by the pitcher and no action in play. Eliminating the four pitches saved a minute or less each time and gave the league a visible rule change with no effect on how the game is actually contested.
The change was agreed with the players' union, which is part of the story. It was one of a series of pace-of-play measures introduced over several seasons, among them limits on mound visits and pickoff attempts and, for the 2020 season, the automatic runner on second in extra innings. The intentional walk signal was one of the first and smallest of these changes. It cost almost nothing in tradition, it did not change the result of any play, and it took a handful of seconds off a few games each week.
What the counts show
The historical record has intentional-walk totals for batters, which makes it possible to see whether the rule changed behavior. The table below counts intentional walks per game for the two leagues combined, using the total number of games played. It is the number of intentional walks issued per game, counting both teams.
| Season | Intentional walks | Per game |
|---|---|---|
| 2005 | 1,216 | 0.50 |
| 2006 | 1,410 | 0.58 |
| 2010 | 1,216 | 0.50 |
| 2016 | 932 | 0.38 |
| 2017 | 970 | 0.40 |
| 2019 | 753 | 0.31 |
| 2021 | 703 | 0.29 |
| 2022 | 475 | 0.20 |
| 2025 | 556 | 0.23 |
The 2020 season is left out because it was a 60-game year. Two things stand out. First, the number of intentional walks fell sharply between the mid-2000s and 2016, long before the rule changed. Second, the 2017 rate (0.40 per game) is slightly higher than the 2016 rate (0.38), which means the signal did not reduce how often managers used the tool. Making a decision faster to carry out does not make it less attractive.
The larger drops came later. From 0.31 in 2019 to 0.29 in 2021 to 0.20 in 2022, the rate fell by about a third in the span of a single season. One likely reason is that the National League adopted the designated hitter in 2022, which meant that managers no longer had a pitcher batting ninth to walk toward. That explanation is plausible, not proven, because the database counts what happened and not why.
It is also worth thinking about what the old rule cost. At the 2016 rate of 0.38 per game, about one and a half pitches per game were thrown for intentional walks (four pitches times 0.38). That is a few seconds per game, well under a minute. The rule was never going to shorten the average game in a way a fan would notice, which is part of why its supporters described it as a start and its critics as a gimmick.
The strategic logic of walking a batter
The intentional walk is one of baseball's most counterintuitive choices, since it gives the offense a baserunner for free. The case for it rests on a comparison. The defense is not choosing between a walk and an out. It is choosing between a walk to this batter and the result of a plate appearance against him, and then the result of the next batter with an additional runner on base.
The comparison can be thought of in terms of run expectancy, the average number of runs a team scores from a given base-out situation to the end of the inning. A free baserunner raises the offense's run expectancy. The walk is justified only if the batter it is replacing would, on average, raise it even more, or if the new situation lets the defense do something it could not do before, such as set up a force play or a double play.
The usual reasons a manager orders the walk are these:
- First base is open and the next hitter is weaker. The classic case: a runner on second or third, a feared hitter at the plate and a much weaker one behind him.
- Forces at every base. With runners on second and third, a walk loads the bases, so a ground ball can be turned into an out at home or a force at any base without a tag.
- A double-play setup. With a runner on second and fewer than two outs, a walk puts runners on first and second, where a ground ball to the right spot can end the inning.
- A platoon edge. Walking a dangerous left-handed hitter to bring up a right-handed one, when the pitcher is right-handed and fares better against the second batter, can justify giving up the baserunner.
- A pitcher on deck. Before the universal designated hitter, walking the eighth batter to reach the pitcher was a standard move. That is part of the story of the sharp drop in 2022.
The reasons against are as clear. Walking a batter with the bases empty gives away a baserunner without any benefit, and walking a hitter to get to a worse hitter often backfires when the next batter happens to be a good one that day. Walking a batter also increases the length of the inning, because the pitcher must still get three outs. Many analysts have argued that on average the intentional walk costs the defense a small amount of expected runs, and that the cases where it helps are narrower than managers have traditionally believed.
A worked example, with made-up numbers
Suppose a slugger with a .450 on-base percentage stands at the plate with a runner on second, one out, and first base open. The next hitter has a .300 on-base percentage. The numbers here are illustrations, not data from any game.
If the defense pitches to the slugger, he gets on base about 45 times in 100 plate appearances, with some of those being home runs or doubles that score the runner. If the defense walks him, he reaches base 100 times in 100, but he reaches it as a single base. The defense now faces the .300 hitter with runners on first and second and one out, where a double play could end the inning.
Neither choice is clearly better from this description alone. The walk makes sense if the slugger's extra-base power hurts more than the cost of the free runner, and if the next hitter is weak enough, and the force at every base valuable enough. A data-driven manager would compare the two states using actual run-expectancy tables and the real batters' matchup numbers. The point of the example is the structure of the decision, which is a comparison of two game states.
Bonds and the extremes
The most intentionally walked player in the historical record is Barry Bonds, with 688 over his career. Albert Pujols is second with 316, Hank Aaron third with 293, Willie McCovey fourth with 260 and Vladimir Guerrero fifth with 250. Bonds's total is more than double that of any player behind him, and the single-season record is his too: 120 in 2004, with 68 in 2002 and 61 in 2003. That 2004 season also produced his record for total walks, 232.
Pitchers walked Bonds because, in those years, he was the most dangerous hitter in the game, and a free base cost less than the alternative. In 1998, Arizona went further and walked him with the bases loaded, giving up a run on purpose, which is as clear an expression as exists of how opponents felt about pitching to him.
The record also reminds us of the limits. The historical intentional-walk counts begin with the 1955 season, and earlier seasons carry none, so a career total for a player whose career began before then leaves out his early years.
The argument over the signal
Supporters of the 2017 change point to speed, safety and consistency. A signal eliminates the chance of a wild pitch, spares the pitcher four throws, and makes a decision that is already known to everyone take no time. They say the ritual added nothing to the game.
Critics point to what was lost. Pitchers occasionally made mistakes on intentional walks that changed games, and those moments, though rare, were part of baseball's character. The signal also removed the small possibility that a batter would reach out and hit a wide pitch. And since the change did not affect the rate at which managers order walks, the case that it saved time rests on a few seconds per game.
A fair reading is that both are right. The rule removed something with almost no value and took almost nothing meaningful out of the game, which is why it passed with little resistance. It also did not do much for pace, which is why larger changes were needed. The lasting measures came later, including the pitch clock in 2023.
Common questions
When did the intentional walk signal begin? With the 2017 season.
Does the batter still get credit for a walk? Yes. It is recorded as a base on balls and also as an intentional walk.
Can a team still pitch around a batter? Yes. A pitcher can throw outside the zone and hope the batter chases, and if he takes four balls it is a walk. The signal is simply the quick way to issue an intentional one.
Who has the most intentional walks? Barry Bonds, with 688, according to the historical record. His 120 in 2004 is the single-season record.
Did the rule reduce the number of intentional walks? Not directly. The league-wide rate in 2017 was 0.40 per game, slightly above the 0.38 of 2016. The larger declines came before and after the rule change.
Can a manager walk a batter with the bases loaded? Yes, it forces in a run, and it is almost never done.
Where to go next
If you are following the pace-of-play changes, read the explanation of mound visits and pickoff limits and the story of the extra-innings runner. For another rule change that depended on a new technology, see instant replay and the challenge system. To look at the leaders in walks and other categories, use the site's leaders page, and the stat calculator can turn walks and plate appearances into on-base percentage.