LBW Rule In Depth Explained: The Three Criteria, Ball-Tracking, and Umpire's Call
The LBW law explained in full — the three criteria (pitched zone, impact zone, projected path), what 'umpire's call' means in the DRS era, the off-side exception, the inside-edge exclusion, and why the LBW decision is the most complex in cricket.
LBW (Leg Before Wicket) is dismissed when the ball hits the batsman's body (anywhere, not only the leg) and would have gone on to hit the stumps — subject to three specific conditions all being met simultaneously. The law (Law 36 in the Laws of Cricket) is the most nuanced dismissal type: it requires the umpire (or ball-tracking technology) to assess where the ball pitched, where the ball struck the batsman, and where the ball would have gone. If any one of the three conditions is NOT met, the batsman cannot be out LBW.
The Three LBW Criteria
All three must be satisfied for an LBW dismissal: (1) PITCHED ZONE — the ball must pitch in line with the stumps (between off stump and the batsman's leg stump) OR outside the off stump BUT NOT outside leg stump. A ball that pitches outside leg stump CANNOT result in an LBW dismissal — regardless of where it hits or where it would have gone. This rule protects batsmen from dismissal by balls spinning or swinging from well outside leg stump; (2) IMPACT ZONE — the ball must hit the batsman's body in line with the stumps (between off stump and leg stump extended, or outside off stump). A ball hitting the batsman outside the line of off stump CAN be LBW — but only if the batsman was NOT playing a shot; (3) PROJECTED PATH (would it have hit the stumps?) — the ball, continuing its trajectory, must be predicted to have hit the stumps. If the ball is predicted to pass over the stumps (bails height or above) or outside the stumps, it is not out.
The Off-Side Exception: Not Playing a Shot
The 'playing a shot' exception: if a batsman is struck outside the line of off stump by a ball they were NOT attempting to play (pad-play, leaving the ball but being hit while not swinging the bat), they CAN be given LBW. Conversely, if the ball hits a batsman outside the off stump line and they WERE playing a shot, it is not out regardless of whether the ball would have hit the stumps. This rule creates a tactical element: batsmen who 'use their pads' to leave balls outside off stump on the off side must watch carefully — umpires assess whether they intended to play the ball. A front-foot block to a ball outside off stump that hits the pad, where the batsman clearly attempted to hit the ball with the bat but missed, is NOT out LBW. A batsman who deliberately thrusts their pad at a ball outside off stump without playing a shot is at risk.
The Inside-Edge Exception and Review Strategy
The inside-edge exclusion: if the ball hits the bat (or glove in contact with the bat) before hitting the batsman's pad, it is NOT out LBW — regardless of where the pad was or where the ball would have gone. This is why Hot Spot and UltraEdge technology are valuable in LBW DRS reviews: they can detect whether the ball touched the bat's edge before hitting the pad. If evidence of an inside edge exists, a referred LBW must be reversed (not out). DRS review strategy around LBW: when to review an LBW decision — batsmen should review if: (a) they believe there was an inside edge (ball-to-bat contact before pad), or (b) the ball pitched outside leg stump (ineligible for LBW), or (c) the impact was outside the stumps and they were playing a shot. Teams should NOT review LBW decisions where the ball pitched in line and hit in line — the margin of error in ball-tracking rarely reverses these.
Frequently asked questions
What are the three conditions for an LBW dismissal?
All three must be met: (1) The ball must pitch in line with the stumps or outside off stump (NOT outside leg stump); (2) The ball must hit the batsman's body in line with the stumps (or outside off stump if not playing a shot); (3) The ball must be predicted to hit the stumps (not go over or past them). If ANY condition is not met, the batsman is not out. The most common LBW exceptions: ball pitching outside leg stump (cannot be out) and inside edge before pad (cannot be out).
What does Umpire's Call mean in cricket DRS?
Umpire's Call in DRS means ball-tracking technology predicts the ball would JUST hit the stumps — on the boundary of hitting/missing within the system's margin of error. When the prediction shows the ball only clipping the stumps (not clearly hitting), the on-field umpire's original decision stands — whether they gave it out or not out. The reviewing team retains their DRS review when Umpire's Call applies. It was introduced in 2013 because ball-tracking cannot be certain enough at the margins to override the on-field decision.
Can you be out LBW if the ball hits outside off stump?
Yes — if you are struck by a ball outside the line of off stump AND you were NOT playing a shot (you used your pad to block without attempting to hit the ball with the bat), you can be given LBW. If you WERE playing a shot and were struck outside off stump, you cannot be out LBW. You also cannot be out LBW if the ball pitched outside leg stump (regardless of where it hit or where it would have gone).