Each month, we’ll break down an important umpiring tip, rule interpretation, or best practice to help you improve your game behind the plate or in the field. Whether it’s fine-tuning mechanics, mastering tricky calls, or sharpening game management skills, our goal is to make sure you’re always one step ahead. Stay sharp, stay confident, and make the right call!
A check swing is one of the most subjective and challenging calls for an umpire—especially the base umpire. Did the batter go around? Did the bat break the plane? Players and coaches will always have opinions, but your call is what counts.
What Is a Check Swing?
A check swing happens when the batter starts to swing but stops mid-motion. Whether it’s a swing or not is a judgment call based on a few common criteria.
How to Judge a Swing:
✅ Did the bat break the front of the plate?
✅ Did the batter attempt to strike at the pitch (not just hold up)?
✅ Was there wrist movement or bat momentum forward?
There’s no official rulebook definition—it’s all based on your judgment.
How to Call It:
As the Plate Umpire:
If you think the batter did not swing, say something like “No swing!” or "No He Did Not!"
If the catcher or coach asks for help, check with your base umpire by pointing with your left arm (right arm for left-handed batter) and asking: “Did he go?”
As the Base Umpire:
If the batter swung, give a clear strike signal and say: “Yes, he went!”
If not, give a safe signal and say: “No, he didn’t!”
Common Misconceptions:
❌ The bat must cross the plate to be a swing. (It’s not that simple—it’s about intent too.)
❌ The base umpire always calls check swings. (Only when appealed to by the plate umpire.)
❌ A check swing is the same as a bunt attempt. (Totally different rule and mechanics.)
Pro Tip for Umpires:
Be ready—check swings happen fast. Plate umpires: don’t be afraid to ask for help. Base umpires: give a crisp, confident signal, even if it contradicts the plate umpire’s call. The crew works together to get it right.