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Other sports · Pakistan - Sri Lanka · Tue, 17 Nov, 05:30

Sri Lanka's win price collapses from 49% to 9% in a day

The market on Pakistan vs Sri Lanka in the Test match has repriced Sri Lanka by 40 points in 24 hours. It now gives them a 9% chance of winning.

Probability: Sri Lanka
10%▲ 2 pts in 24h
Polymarket
0%10%20%
13 Nov14 Nov14 Nov
-10%0%10%20%30%40%50%60%
10 Nov12 Nov14 Nov
-10%0%10%20%30%40%50%60%
10 Nov12 Nov14 Nov
-10%0%10%20%30%40%50%60%
10 Nov12 Nov14 Nov
updated at 18:07 · 24h vol. $1,534

A day ago, this market was close to a coin flip. Today, it is anything but.

The question is simple: "Will Sri Lanka win?" in the Test match against Pakistan. 24 hours ago the "Yes" price stood at 49%. It now sits at 9%. That is a drop of 40 points, and it turns a market that saw Sri Lanka as a near-even proposition into one that treats a Sri Lanka win as a long shot.

How to read the numbers

If you are new to prediction markets, here is the one-line version. The price of the "Yes" share reads as the market's estimated probability that the event happens. So 9% means the crowd collectively puts Sri Lanka's chances of winning at about 9%. The "No" side, which covers every other way the match can end, is priced at 91%.

A day ago the picture was almost symmetrical: 49% for Yes and 51% for No. Now the "No" side owns the market. The belief did not drift. It moved by 40 points in a single day, and that is the story here.

What the scale of the move tells us

A move of this size is not a small adjustment at the margin. The market has changed its mind about which side it believes in. Moving from 49% to 9% means the crowd went from "this is open" to "this is very unlikely" between one day and the next.

At 9%, the market sees a Sri Lanka victory as an outsider's result, and it is now much more confident than it was yesterday. Because "No" bundles together every outcome other than a Sri Lanka win, the 91% on that side is a statement about everything except one result, not a single named alternative.

How much money is behind it

The volume traded on this market in the last 24 hours is $1,534. That is the amount that changed hands while the price fell from 49% to 9%. It is a useful reminder that a prediction market price is only as strong as the participants behind it, and this repricing was carried by a modest sum of money rather than a flood of it.

The calendar

The match is scheduled to begin on 17 November at 04:30 UTC. Because the market is still ahead of the first ball, the price remains a live estimate that can keep moving as the start approaches. Today's reading is 9%, down from 49%, and the coming hours will show whether the market holds that view or revisits it.

The bottom line

  • Yesterday: Sri Lanka at 49%, No at 51%.
  • Today: Sri Lanka at 9%, No at 91%.
  • The change: 40 points lower in 24 hours.
  • The volume: $1,534 over the same period.

This is a description of what the market believes and how fast that belief has moved, not a tip. The belief has moved sharply against Sri Lanka, and the price now says the market expects the match to end in anything other than a Sri Lanka win far more often than not.

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