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Key takeaways
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<100%
If the best prices on both sides across bookmakers add up to under 100% implied, at least one line is stale.
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2.50
American +150 equals decimal 2.50, a 40% break-even rate. Convert before you compare.
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News
Before betting a price that looks wrong, check for news you might have missed: a stand-in, illness or visa issue.
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Limits
Bookmakers can cap stakes or void bets placed on obvious errors under their terms. Read them.
Why esports odds break more often
Traditional sports change slowly. Esports change on a schedule set by the game's publisher: balance patches arrive every few weeks, map pools rotate in CS2 and Valorant, and rosters can change mid-season. Each change makes some of the historical data behind a pricing model less relevant.
Five reasons esports prices go wrong
| Cause | What happens to the price |
|---|---|
| Balance patch | Models keep pricing teams on pre-patch results |
| Map-pool change | A team's best map leaves the pool, but its overall rating stays high |
| Late roster change or stand-in | The price is posted before the news and moves late at some bookmakers |
| Thin markets | Lower-tier matches attract little money, so wrong prices are corrected slowly |
| Brand bias | Popular teams stay short because fans keep betting them |
How to spot a stale price: compare bookmakers
A single bookmaker's price tells you little. The market as a whole is a better guide. Here is an example match at two bookmakers:
Example odds at two bookmakers
The best prices add up to less than 100%. Implied 43.5% + 56.2% = 99.7%. One of the two lines has not caught up with the other.
| Team A | Team B | Margin | |
|---|---|---|---|
| Bookmaker 1 | 2.30 | 1.62 | 5.2% |
| Bookmaker 2 | 2.05 | 1.78 | 5.0% |
| Best price each side | 2.30 | 1.78 | −0.3% |
Worked example: margin = sum of 1 ÷ odds − 1. Example odds, not live prices.
Read our arbitrage betting guide for the stake maths and the risks, and our odds guide to convert between decimal, fractional and American odds.
Results the market found hard to price
- Valorant Champions 2022: LOUD, from Brazil, won the title in Istanbul with a 3–1 final over OpTic Gaming.
- League of Legends Worlds 2021: EDward Gaming beat the defending champions DWG KIA 3–2 in the final.
We do not have archived odds for these matches, so we can't say they were mispriced. They are examples of outcomes that went against reputations, which is exactly where you should check the price against form rather than brand.
Before you bet a price that looks broken
- Check the news Look for a stand-in, illness, visa problem or roster change on team accounts and Liquipedia.
- Check the patch and map pool Is the match on a new patch or a new map that changes the picture?
- Compare at least three bookmakers If only one price is out of line, it is more likely stale than the rest of the market.
- Read the palpable-error rule Bookmaker terms usually let them void bets on obvious pricing mistakes.
- Keep the stake normal An apparent edge is not a reason to break your staking plan.
Terms used in this guide
- Stale line
- A price that has not moved after news or market moves that changed the true odds. So what: This is the most common real form of a broken price.
- Palpable error
- A bookmaker's term for an obvious pricing mistake that allows it to void bets. So what: Big errors are often cancelled; small stale prices usually stand.
- Arbitrage
- Betting all outcomes at different bookmakers so the total return is fixed whatever happens. So what: Possible only when the best prices add up to under 100% implied.
Broken esports odds: common questions
Why are esports odds more error-prone than football odds?
Esports change more often. Patches, map-pool rotations and roster moves make historical data less relevant, and lower-tier matches attract little money to correct prices.
How do I spot a broken esports price?
Compare the same match at several bookmakers. A price far from the rest of the market, or best prices that add up to under 100%, point to a stale line.
How long do pricing mistakes last?
Usually not long. Once money arrives or traders see the news, the price moves. Prices on big events tend to correct fastest.
Can a bookmaker cancel my bet on a wrong price?
Most bookmaker terms allow voiding bets on obvious errors. Smaller stale prices are usually honoured, but check the terms.
Is betting on broken odds a long-term strategy?
It can be part of one, alongside research and careful staking. Expect fewer chances than you hope, and possible stake limits on your account.
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