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Match DNA · 2009/10 · Apr 13, 2010 · MA Chidambaram Stadium, Chepauk, Chennai

Chennai Super Kings vs Kolkata Knight Riders

Chennai Super Kings won by 9 wickets.

POTM · R Ashwin

1st innings

Kolkata Knight Riders

139/8

20 overs

2nd innings

Chennai Super Kings

143/1

13.3 overs

Win probability — chasing team

100%50%0%0 overs13.3 overs

Runs per over

over 1over 20180

Where the swing came from

Decomposes total absolute |Δp(chase wins)| = 0.53 across the chase (85 balls). Phases partition cleanly; overlays don't.

Powerplay (overs 1-6)86%|Δp| 0.46
Middle overs (7-15)14%|Δp| 0.07
Late-overs execution (16-20)0%|Δp| 0.00

Event overlays — share % can intersect phases above

Wicket falls (overlay)20%|Δp| 0.11
Bowling-change windows (overlay)64%|Δp| 0.34

Who actually won this

Per-player WP-swing attribution across the chase. Every ball's ΔP is credited to BOTH the batter (who took / didn't take the run) and the bowler (who delivered the ball). Total absolute swing = 91.34.

What if?

counterfactual · v1 (pre-event approximation)

Reframes the biggest swings as "what if this hadn't happened" — the WP if the event had gone the other way is approximated by the pre-event state. Not a hard prediction.

Counterfactual · over 0.4

ML Hayden fell — bowled at 6/1.

Actual after

77%

If not

87%

Counterfactual · over 2.5

3-point swing on this ball.

Actual after

85%

If not

82%

Counterfactual · over 1.2

3-point swing on this ball.

Actual after

80%

If not

76%

Three biggest swings

over 0.4 11%

WP: 87% → 77%

over 2.5 3%

WP: 82% → 85%

over 1.2 3%

WP: 76% → 80%

Wicket falls

1st innings (Kolkata Knight Riders)

  • CH Gaylestumped · 17/1 · 2.2
  • BB McCullumcaught · 17/2 · 2.6
  • SC Gangulylbw · 17/3 · 3.2
  • DJ Husseystumped · 19/4 · 4.1
  • MK Tiwarycaught · 92/5 · 14.4
  • WP Sahastumped · 96/6 · 15.5
  • LR Shuklacaught · 123/7 · 18.2
  • AD Mathewscaught · 133/8 · 19.4

2nd innings (Chennai Super Kings)

  • ML Haydenbowled · 6/1 · 0.4