Arm Ball in Cricket — The Spinner's Straight Delivery
The arm ball doesn't turn — it skids on straight from a spin bowler's hand to deceive batters expecting spin. Learn the technique and when to use it.
What Is the Arm Ball?
The arm ball is a spin bowling variation that goes straight on — it does not turn off the pitch as a normal off-break or leg break would. Instead, it skids through with the seam upright, travelling in the direction of the bowler's arm rather than spinning sideways. Batters expecting turn are caught playing for the deviation that never comes.
How It Is Bowled
For a right-arm off-break bowler, the standard delivery rolls the fingers across the seam to impart clockwise spin. For the arm ball, the fingers do not roll — they push through behind the ball, keeping the seam upright and allowing the ball to travel straight. The wrist stays behind the ball rather than rotating. The result is a delivery that skids on quickly rather than turning.
When to Bowl It
- After establishing the turn — bowl several off-breaks first to set up the expectation.
- When the batter is playing away from the line of the ball expecting spin — the arm ball goes straight into the pad or hits the top of off stump.
- Against batters who plant their front foot across — the arm ball can trap them LBW if they miss a straight ball.
- In the powerplay when fielders are up — a straight ball that deceives produces a catch to mid-on or mid-off.
Famous Arm Ball Bowlers
- Derek Underwood (England) — used a straight skidder to devastating effect on damp pitches.
- Ravichandran Ashwin (India) — renowned arm ball user; sets it up with off-break and carrom ball combinations.
- Daniel Vettori (New Zealand) — relied heavily on the arm ball to dismiss batters playing for turn.
- Graeme Swann (England) — used the arm ball alongside his off-break to trouble left-handers.
Arm Ball vs Top-Spinner
| Feature | Arm Ball | Top-Spinner |
|---|---|---|
| Spin direction | None (straight) | Over-spin (forward) |
| Ball trajectory | Skids on flat | Dips sharply in flight |
| Bounce | Low to medium | Higher than expected |
| Primary danger | Hits the pads or stumps | Catches batter on the back foot |
| Best used against | Batters playing for turn | Batters coming forward |
Frequently asked questions
Is the arm ball the same as a straight ball?
Yes — in spin bowling parlance, the arm ball and the straight ball are the same delivery. It goes straight in the direction of the bowler's arm, without turning. Some use 'arm ball' specifically to describe the finger-spin version (off-break bowlers) and 'straight ball' more broadly.
Why is the arm ball effective?
Because it exploits the batter's expectation of spin. On a turning pitch, batters adjust their feet and bat angle to counter the expected break. A well-disguised arm ball catches them playing for a turn that never comes — resulting in LBW, bowled, or a catch to mid-on from a miscue.