Bowling Action in Cricket: Legal Actions and What Makes Them Effective
A bowler's action is the complete sequence of physical movements from run-up to delivery, governed by cricket laws to ensure fairness and prevent illegal throws.
What Is a Bowling Action in Cricket?
A bowling action is the complete physical sequence of a bowler — their run-up, coil, delivery stride, arm swing, release, and follow-through. A legal bowling action must not have the elbow 'throwing' the ball — the arm must travel through a continuous arc (no sudden straightening of the elbow to impart pace). The ICC limits elbow flexion to 15 degrees during the delivery swing.
Components of a Bowling Action
- Run-up: approach toward the crease at appropriate speed
- Load-up (coil): gathering of momentum before the delivery stride
- Delivery stride: the final step that plants the front foot before the release
- Arm swing: the bowling arm's arc from shoulder to release point
- Release: the point where the ball leaves the fingers or hand
- Follow-through: continuation of the motion after release (critical for avoiding the pitch)
Famous Unusual Bowling Actions
Cricket has seen many distinctive actions: Lasith Malinga's round-arm slinging action, Paul Adams' 'frog in a blender' action, Michael Holding's silky smooth glide, and Wasim Akram's sideways-on lethal action. All were legal; some were extremely hard to face because of their unusual trajectory.
What Makes a Bowling Action Illegal?
If the ICC's accredited laboratories detect more than 15 degrees of elbow flexion in the delivery swing, the bowler has an illegal action. They are reported by the on-field umpires, banned from bowling, assessed, and can return after correcting their action. Muttiah Muralitharan and several other bowlers have been reported and cleared.
Frequently asked questions
What is a bowling action in cricket?
A bowling action is the complete physical movement sequence of a bowler, from run-up through delivery to follow-through.
What makes a bowling action illegal in cricket?
The ICC rules that a bowling action is illegal if the elbow flexes by more than 15 degrees during the delivery swing — this is considered 'throwing'.
Can a bowler be banned for an illegal action?
Yes — if reported and confirmed by ICC biomechanics labs, a bowler can be suspended from bowling until they correct their action.