Check Swing (Slow-Pitch)
Also known as: checking the swing, held-up swing
A check swing is when a hitter begins to commit to a pitch but stops or holds the bat before completing a full swing, usually reviewed by the umpire (or base umpire on appeal) to determine whether the bat crossed the plane of the plate or the wrists rolled over.
Because slow pitch gives hitters more time to read the ball, check swings are somewhat less common than in faster games, but they still occur when a pitch's arc or speed changes unexpectedly late. The umpire's determination generally comes down to whether the batter made a definite attempt to strike the ball — indicated by the bat crossing the front plane of the plate or the wrists fully rolling over — versus successfully holding up the swing in time.
Example
Fooled by a pitch that drops flatter than expected, the hitter starts to swing but pulls the bat back before it crosses the plate; the umpire rules no swing after the batter holds up in time.
How it shows up on video
On video, a check swing is judged primarily by whether the bat head visibly crosses the front edge of home plate or whether the hitter's wrists complete their rotation, rather than by how far the bat traveled overall.
Common mistakes
- Assuming that stopping the arms is enough to avoid a strike call even if the bat head has already crossed the plate's front plane
- Not recognizing that wrist rollover alone, even with the bat stopped short of the plate, can still be ruled a completed swing in some leagues
- Guessing on a pitch and starting the swing so early that there is no physical way to hold up in time
Frequently asked questions
What determines whether a check swing is a strike?
Umpires generally look at whether the bat crossed the front plane of home plate or whether the wrists rolled over — either is typically treated as a completed swing attempt and called a strike.
Can a check swing be appealed in slow pitch?
Many leagues allow the plate umpire to ask a base umpire for help on a check-swing call, similar to other softball and baseball formats, though local league rules vary.
Related terms
- Early Commitment (Timing)Early commitment is deciding to swing — and beginning irreversible swing mechanics — before the pitch's location, height, and speed are actually confirmed, often based on a guess rather than a read.
- Strike Zone – Slow-PitchThe slow-pitch strike zone is the area over home plate between the batter's back knee and the top of the shoulders where a legal, properly arced pitch must land to be called a strike.
- Rolling the Wrists (Slow-Pitch)Rolling the wrists is the top hand turning over the bottom hand before or at contact rather than after extension, the direct mechanical cause behind most rollover ground balls.
- Plate CoveragePlate coverage is the hitter's ability to make solid contact on pitches across the entire width of the strike zone — inside, middle, and outside — without giving any quadrant away to the pitcher.
- Timing the ArcTiming the arc is the skill of tracking a slow-pitch delivery from release through its peak and descent, and starting the swing so the barrel arrives exactly when the ball reaches the hittable zone.
Related guides & benchmarks
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