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Reading the draws and working out what chance predicts.

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PowerBall · draw

Tuesday, 20 December 2011

ResultPowerBall

Verified
  1. 20
  2. 21
  3. 25
  4. 37
  5. 40
  6. 5

JackpotZAR 10,136,821

The crowdHeld 4% more than an average linefrom the prize table, not from a model of how people pick

Top prizeNot wonnext draw advertised at

Rules5/45 + 1/20 · Oct 2009 – Jun 2018draw 223 of 1,161 under them

← 2011-12-16All recent draws2011-12-23 →

Where this result came from

SourcesSources disagree on this draw — Primary reports different numbers. The reading most sources give is shown. Settled 29 Aug 2026, 09:57 UTC.

  • Primarycommercial feed20 21 25 37 4029 Aug 2026, 09:36 UTCdiffers
  • Backup 3community20 21 25 37 40 + 528 Aug 2026, 21:01 UTC
Drawn under earlier rules

PowerBall was a 5/45 + 1/20 · Oct 2009 – Jun 2018 game then. Everything on this page reads the draw against those rules and the 222 draws before it — not against today’s pool.

Play these numbers? Read them as your ticket →

This draw, read by every tool

What the site’s explorations say about the numbers drawn on 20 December 2011 — each beside what chance predicted. None of it says anything about the next draw.

48oddordinary

How ordinary this draw is

Scored 48 of 100 across six shape features — more typical than about 39% of every possible ticket.

  • sum84th
  • odd65th
  • low32th
  • widest gap29th
  • neighbours78th
  • spread10th
Draw Fingerprints →

Each number, as it stood before this draw

Times drawn before — chance expected 25 of each

2015times
2122times
2526times
3728times
4025times
Stars · a separate 1-of-20 machine

Times drawn before — chance expected 11 of each

59times

Every number was expected about that many times after 222 draws, and they scatter around it. Warm means more than expected, cool means fewer — and a cold number arriving is exactly what cold numbers do.

Frequency Explorer →

Its nearest twin

Shares 3 of 5 numbers (21, 25, 37) and 0 of 1 stars with the draw of 30 July 2010 — its closest relative in 222 draws. Chance gave a match this close a 77% likelihood somewhere in that history.

From the draw just before (16 December 2011): nothing carried over. Chance says 46% of draws repeat at least one number. Stars: none repeated (5% expected).

Carry-over / Déjà Vu →

Sum and shape

143

The numbers add up to 143 — the 83th percentile of all possible tickets, around a middle of 115. Side-by-side numbers: 20–21. 39% of draws have at least one such pair.

Sum Distribution →

The longest wait in this draw

21 had not appeared for 19 draws. A number waits about 9 on average, and a wait this long was not a signal — the machine has no memory of it.

Gap & “Overdue” Tracker →

How many people held it

A line like this is played about 0.7× as often as an average ticket — less popular than most. At 30 million tickets sold, a winner on these numbers would keep about 6% of the jackpot.

Illustrative model, calibrated to published studies — not live sales.

The Unpopular Numbers Edge →

Prize breakdown · 2011-12-20

  • Lines in play≈ 3.8Mas the winner counts imply
  • Paid outZAR 3.7Mto 114k winning lines
  • Won something1 in 34lines took a prize
  • Match 5 plus Bonus Ball0 winnerschance said 0.16

Where the money went

  • Match 523%ZAR 853.4K
  • Match 4 plus Bonus Ball16%ZAR 599.2K
  • Match 1 plus Bonus Ball22%ZAR 791.7K
  • 4 other tiers39%ZAR 1.4M
Tier1101001k10k100kWinners1101001k10k100k1M10M100MPrize each
  1. Match 5 plus Bonus Ball0≈ 0.16 by chanceZAR 10,136,821
  2. Match 51≈ 3.0 by chanceZAR 853,386
  3. Match 4 plus Bonus Ball39≈ 32 by chanceZAR 15,364
  4. Match 4529≈ 599 by chanceZAR 430
  5. Match 3 plus Bonus Ball1,238≈ 1.2k by chanceZAR 377
  6. Match 2 plus Bonus Ball15,996≈ 16k by chanceZAR 18.00
  7. Match 324,294≈ 23k by chanceZAR 18.00
  8. Match 1 plus Bonus Ball71,971≈ 72k by chanceZAR 11.00
  • Winners, log scale
  • Prize each, log scale
  • Where chance put the count

The rings take the ≈3.8M lines the counts imply and assume an evenly spread crowd. Furthest from that: Match 4 — 529 winners, 12% fewer than the 599 an even spread gives. The numbers drawn were a little less popular than average — that is the crowd, not the machine.

Show the published table
MatchWinnersPrize each
Match 0 plus Bonus Ball0—
Match 1 plus Bonus Ball71,971ZAR 11.00
Match 2 plus Bonus Ball15,996ZAR 18.00
Match 324,294ZAR 18.00
Match 3 plus Bonus Ball1,238ZAR 377
Match 4529ZAR 430
Match 4 plus Bonus Ball39ZAR 15,364
Match 51ZAR 853,386
Match 5 plus Bonus Ball0ZAR 10,136,821