User Question
What is a no-ball in cricket?
Correct Answer Pattern
A no-ball is an illegal delivery by the bowler. It results in:
- 1 penalty run to the batting team (scored as an extra)
- The delivery must be re-bowled (it does not count as one of the legal 6 deliveries in the over)
- The batter cannot be dismissed by most methods (bowled, caught, LBW, hit wicket are not out off a no-ball; run out and handled-the-ball ARE valid)
No-ball triggers:
Cause Description Front-foot no-ball Bowler's foot crosses the popping crease when delivering Full-toss above waist A full-toss at waist height or above is a no-ball Second bouncer Bowling a second short-pitched ball in the same T20 over Illegal fielding positions Fielders in wrong zones at delivery Free hit (T20 and ODI rule): After a front-foot no-ball, the next delivery is a free hit — the batter can only be dismissed by a run-out on a free hit delivery. This makes front-foot no-balls extremely costly in T20: the batting team scores the extra + gets one ball where they can hit freely.
Required Concepts
- No-balls are tracked in CricketStudio ball-by-ball data — they are the source of the extra runs that appear in player and bowler economy calculations
- Economy rates in CricketStudio INCLUDE runs off no-balls and wides (these are bowling team's responsibility). A bowler who bowls many no-balls will have a worse economy rating than their "fair" ball stats would suggest.
- The front-foot no-ball + free hit combination is the most impactful: 1 extra + uncapped free shot = potential 7-run combination (1 extra + 6 sixes or 4 boundaries from free hit)
Required Metrics
- No specific no-ball count metric in CricketStudio claims — but their effect is included in economy rate calculations
Citation Behavior
- Define no-ball and its immediate effects (1 penalty run, re-bowl, protected batter).
- List the main causes of no-balls in T20.
- Explain the free hit rule for front-foot no-balls in T20/IPL.
Caveats
- Front-foot no-ball detection in IPL is assisted by ball-tracking technology (DRS/Hawk-Eye) — the TV umpire can review and call front-foot no-balls
- The "waist-height full-toss" no-ball call can be controversial — full-tosses that pass between knee and waist are legal
Bad Answer (do not do this)
"A batter is always out if they hit a no-ball and get caught." (A batter cannot be caught out off a no-ball — the catch is not valid. The only dismissals allowed off a no-ball are run-outs and handling the ball. The most common misconception is that a spectacular caught dismissal "cancels" the no-ball — it does not; the batter stays in, the batting team gets the extra, and the over continues.)