Bowling Science
The physics of pace, spin & seam
How a bowler turns biomechanics, aerodynamics and pitch behaviour into wickets — from the run-up to the moment the ball leaves the hand, with worked examples from the bowlers who do it best.
Learning path
- 1Lesson 1
Anatomy of a Bowling Action
Five phases from run-up to follow-through, decoded.
6 min - 2Lesson 2
Pace and the Kinetic Chain
Why the fastest bowlers are not the strongest people.
6 min - 3Lesson 3
Hip-Shoulder Separation
The pace generator.
6 min - 4Lesson 4
Bracing Front Leg
Force conversion in the last 0.05 s.
5 min - 5Lesson 5
Slinging / Round-Arm Action
Low-arm release angles.
5 min - 6Lesson 6
Release Angles & Trajectories
Geometry behind yorkers, bouncers and good-length deliveries.
5 min - 7Lesson 7
Wrist Position Spectrum
From cocked open to locked behind the ball.
5 min - 8Lesson 8
Seam Presentation & Wobble
Upright seam, scrambled seam, wobble seam — three distinct skills.
6 min - 9Lesson 9
Wobble-Seam Delivery
Random off-seam movement.
5 min - 10Lesson 10
Why a Cricket Ball Swings
Boundary layers, seam angle, and the magic of conventional swing.
8 min - 11Lesson 11
Conventional Outswing
Right-arm outswing to a right-hander.
6 min - 12Lesson 12
Conventional Inswing
The pad-trap classic.
6 min - 13Lesson 13
Reverse Swing Mechanics
When the old ball goes the other way.
7 min - 14Lesson 14
Swing vs Seam: Two Different Skills
Air movement vs pitch movement — and when each rules.
5 min - 15Lesson 15
Spin: RPM, Drift & Dip
How revs create the Magnus force that shapes a spinner's threat.
7 min - 16Lesson 16
Drift: The Spinner's Air Movement
Magnus force in the air, before the pitch.
5 min - 17Lesson 17
Over-Spin vs Side-Spin
Tilting the spin axis changes everything.
5 min - 18Lesson 18
Off Break
The stock finger-spinner's off-spin.
6 min - 19Lesson 19
Arm Ball
The off-spinner's straight-on deception.
5 min - 20Lesson 20
Doosra
The off-spinner's wrong'un.
6 min - 21Lesson 21
Teesra
The third one — back-spin held in the off-spinner's action.
4 min - 22Lesson 22
Top-Spinner (Finger)
Pure forward roll — dip and bounce.
4 min - 23Lesson 23
Slider (Finger Spin)
Skids on under low backspin.
4 min - 24Lesson 24
Carrom Ball
Flicked between bent middle finger and thumb.
5 min - 25Lesson 25
Left-Arm Orthodox Stock Ball
Finger-spin from the left arm.
5 min - 26Lesson 26
Left-Arm Arm Ball
The orthodox spinner's straight-on.
4 min - 27Lesson 27
The Left-Arm Quick Angle
Why left-arm pace is statistically over-represented in wickets.
5 min - 28Lesson 28
Chinaman
Left-arm unorthodox wrist spin.
6 min - 29Lesson 29
Chinaman Googly
Out the back of the hand from the left-arm wrist-spinner.
4 min - 30Lesson 30
Leg Break
The wrist-spinner's stock ball.
7 min - 31Lesson 31
Googly / Wrong'un
The leg-spinner's off-spin variant.
6 min - 32Lesson 32
Flipper
Squeezed-out backspin that skids low.
5 min - 33Lesson 33
Slider (Wrist Spin)
Low-revs leg-break that drifts straight.
4 min - 34Lesson 34
Top-Spinner (Wrist Spin)
Pure dip and extra bounce.
4 min - 35Lesson 35
Zooter
Warne's float ball.
4 min - 36Lesson 36
Cutters, Slower Balls & Knuckle Balls
Speed change without telegraphing the change.
6 min - 37Lesson 37
Off-Cutter
A pacer's off-spin.
5 min - 38Lesson 38
Leg-Cutter
A pacer's leg-spin.
4 min - 39Lesson 39
Back-of-the-Hand Slower Ball
Late wrist-rotation deceiver.
5 min - 40Lesson 40
Knuckle Ball
Slow ball with no spin.
5 min - 41Lesson 41
Conventional Yorker
The death-overs anchor.
6 min - 42Lesson 42
Wide Yorker
Outside off, no swing room.
4 min - 43Lesson 43
Toe-Crusher
Reverse-swinging in-yorker.
4 min - 44Lesson 44
Bouncer
Short ball at head height.
5 min - 45Lesson 45
Death-Overs Yorker Package
Yorker, wide yorker, slower, knuckle, bouncer.
6 min - 46Lesson 46
Bowling to LH-RH Combinations
Re-setting line every ball.
5 min