Value betting cricket runs on the same two steps as every other sport: take the margin out of the market to get a fair price, then compare the price on offer with it. What makes cricket its own problem is the step before those two, deciding which outcomes exist, because that changes with the format and with the operator's own settlement clause.
The same two sides can be a three-way market on Thursday and a two-way market on Sunday, and one rain clause can make two identical prices at two operators into different bets. An edge computed without knowing which settlement applies is not an edge, it is a number.
Fair price depends on the outcome set
A decimal price implies a chance of 1 divided by the price. Add the implied chances of every outcome in a market and the total comes to more than 100%; the excess is the operator's margin. Scale every chance down by the same factor until they add to 100% and you have a fair set of prices. Then edge = offered price / fair price - 1.
Every term in that sequence assumes you listed the outcomes correctly, and cricket makes that assumption do real work.
| Format | Outcomes a head to head covers | What rain does |
|---|---|---|
| Test | Home, away, draw, and a tie as a rare fourth | A washout is a draw, a priced outcome |
| One-day | Home, away, plus tie and no result clauses | A revised DLS target can still produce a winner |
| Twenty over | Home, away, and a tie resolved by super over where the conditions provide one | Below the minimum overs there is no result |
Three outcome sets, one sport. The arithmetic does not care which you use, which is the danger.
Worked example: a Test head to head priced three-way
Illustrative prices, chosen to show the arithmetic rather than to describe a real match.
| Outcome | Priced at | Implies | Fair price |
|---|---|---|---|
| Home win | $1.80 | 55.56% | $1.87 |
| Draw | $3.90 | 25.64% | $4.05 |
| Away win | $4.40 | 22.73% | $4.57 |
The three implied chances add to 103.92%, a 3.92% overround. Dividing each by 1.0392 brings the set to 100%, which checks out: 1 over 1.87 plus 1 over 4.05 plus 1 over 4.57 comes back to 1.00.
Say the top prices available anywhere are $1.88 home, $4.15 on the draw and $4.50 away.
Example: home at $1.88 against a fair $1.87 is an edge of 0.50%. The draw at $4.15 against a fair $4.05 is 2.39%. Away at $4.50 against a fair $4.57 is minus 1.59%. Three top prices on one match, and only two of them are bets.
Note where the larger of the two edges sat. The draw is the outcome that does not exist in the shorter formats, so it is also the one price you cannot sanity-check against a short-format market for the same two sides. Take it on the three-way book or not at all.
Drop the draw and the arithmetic breaks
Take those same prices and build a fair price from the two match results only, as you would on a shorter format. Home implies 55.56% and away 22.73%, which total 78.28%. That reads as an arbitrage of 21.72%, and there is no arbitrage here at all. Scaling the two up to 100% gives a fair home price of $1.41, so the $1.88 on offer now reads as an edge of 33.42%.
Risk: a cricket screen that mixes a three-way quote with a two-way fair price hands you double-digit edges all day. Nothing in a cricket head to head pays 33%. A number that size is a missing outcome, not an opportunity.
The reverse error is quieter and still costs money. Reserve a chance for a draw in a Twenty over match and both real outcomes get shaded too long, so genuine value reads as negative and you pass it. Done properly, two illustrative short-format prices of $1.80 and $2.10 are a 103.17% book with fair prices of $1.86 and $2.17, and that $1.86 differs from the Test's $1.87 because it answers a different question.
Read the reduced-overs rule before you price the bet
Operators do not agree on what a rain-shortened match is. Some void head to head bets unless a minimum is bowled, some settle on the official DLS result, and the clause can differ by market inside one operator, so a head to head and a runs line on the same match can settle under different rules. That choice is an input to your fair price, not small print. The rest of this section is the match market only.
Work it with illustrative branch chances: a 90% chance of a full result with your side at 55%, and a 10% chance the match is cut short to where the two rules diverge, with your side at 50% in that branch.
- Settles on DLS: 0.90 times 0.55 plus 0.10 times 0.50 is 54.50%, so the fair price is $1.83.
- Voids in that branch: the 10% returns your stake, so the bet lives only in the 90% branch. Break-even is where 0.495 times the price equals 0.90, which is $1.82.
At a common $1.85 they pay differently. Under DLS the expected value is 0.545 times 1.85 minus 1, which is 0.83% per dollar staked. Under the void rule it is 0.90 times (0.55 times 1.85 minus 1), which is 1.58%. The void is worth 0.75 percentage points because it deletes a branch in which the bet was losing 7.50%.
Flip the branch and the sign flips. If a shortened match favours your side at 65% rather than 50%, DLS settlement is worth 3.60% and the void rule still 1.58%, so the void clause now costs just over 2 percentage points. Either way the gap beats the 0.50% edge the Test example produced: the clause can outweigh the selection.
Tip: note the minimum-overs and DLS clause beside the price, the way you would a line. Two prices settled under different rules belong in different columns. Cricket betting rain rules sets out which bets stand and which are void.
The toss splits the market in two
Elsewhere a fair price built an hour ago is slightly stale. In cricket there is a hard line through the middle of the market, and it is the toss. On one side of it your number has to average over a coin flip nobody has seen; on the other, one of the two branches is a fact. The same fair price cannot serve both sides of that line, and the problem is the timing rather than the estimate.
Illustrative numbers. Say your pre-toss figure for a side is 55% and you judge the toss worth 8 percentage points at that venue, so 59% if the side wins it and 51% if it does not. Each fair price is 1 divided by the chance.
| State | Win chance | Fair price | Edge on a $1.90 offer |
|---|---|---|---|
| Before the toss | 55% | $1.82 | 4.50% |
| Won the toss | 59% | $1.69 | 12.10% |
| Lost the toss | 51% | $1.96 | minus 3.10% |
The coin flip moves the edge on the same unchanged $1.90 by 7.60 percentage points either way, a 15.20 point spread between the two branches.
Then read the table in the direction the money runs. The operator sees the toss when you do, so the $1.90 in the winning branch is the price least likely to still be on the screen, while the $1.90 in the losing branch is the one that will sit there waiting to be taken. A pre-toss fair price carried across the toss unchanged is not neutral, it is biased against you: it keeps finding edges in the one branch where the stale offer survives. Rebuild the number after the coin lands or leave the bet alone. Cricket betting strategy covers measuring the toss and the pitch in the first place.
Top batter and top bowler: the market you cannot de-vig
A top batter or top bowler market spreads its margin across a whole field rather than two prices, and it is where the method fails most quietly. Take an illustrative top batter market where the operator prices seven of the eleven: $4.50, $5.00, $6.00, $7.50, $9.00, $11.00 and $15.00.
Those seven implied chances add to 99.09%. Under 100% again, so uniform scaling says every price is a 0.92% edge. It cannot be, because the four unpriced batters are not impossible. The market is incomplete, and an incomplete market cannot be de-vigged.
Put the missing players back. If the four hold 8% between them the real total is 107.09%, the fair on the $15.00 becomes $16.06 and the fair on the $4.50 becomes $4.82, so all seven are an edge of minus 6.62%. Seven bets became none on one assumption about four names nobody quoted.
Worse, uniform scaling hands the favourite and the longshot the same percentage. If the operator has loaded more of its margin onto the long prices, as it may have, the $15.00 is worse than minus 6.62% and the $4.50 better, so an even de-vig flatters exactly the selection carrying most of the margin. Add the did-not-bat and dead heat clauses, which move the denominator again, and the honest answer on a seven-of-eleven market is that you have no fair price. Top batter betting prices a full field and sets out those rules.
Sizing a cricket edge
The draw at $4.15 was the largest edge above, at 2.39%. The Kelly stake is edge divided by the price minus one, as a share of bankroll: 0.0239 divided by 3.15, which is 0.76%. A quarter of that on a $5,000 bankroll is about $9.50.
That figure is deliberately unimpressive, and it is the honest one. A long-format bet also ties the stake up for days, so the same 2.39% earns far more slowly than it would on a match settled in three hours. The arithmetic ignores that, so account for it yourself.
Risk: Betting involves risk. A fair price is an estimate, so a bet above it can still lose, and at an edge this size a long losing run is ordinary rather than evidence of anything. Bookmakers write their own terms and can limit stakes, void bets or close an account whatever your edge says. There is no guarantee of profit. See responsible gambling for limits and support.
What to check before you trust a cricket edge
Five checks, in the order they usually go wrong.
Count the outcomes the quote covers before you scale anything, and never compare a three-way price against a two-way fair price.
Confirm the reduced-overs clause at the operator you are betting, not the one you priced at. Void against DLS can be worth more than the edge.
Check whether the toss has happened. A pre-toss number stops being a fair price the moment the captains walk out.
Treat a partial field as no field. A board where every price shows the same small edge is telling you the total is wrong.
Measure closing line value, whether your price beat the market's last price, because where one match takes five days it is the only feedback arriving at any pace.
Where B337 fits
The +EV screener lists prices that sit above the fair price and ranks them by edge, with the fair price built by taking the margin out of prices across the market and combining them. The de-vig is adjustable, so you can change which prices count and how much margin comes off each, and every edge is worked out again to match. Filter by sport, market and bookmaker. The Terminal shows cricket markets side by side across operators whenever they have prices up, which is also how you notice a market quoting fewer outcomes than the format has.
Two honest limits. The fair price is an estimate rather than a known probability, so a price above it can still lose. And B337 places no cricket bet by itself: the screener finds the price, and on Terminal Pro or Full Automation you place it into your own bookmaker accounts, with the software running on your own computer, so nothing is placed while that computer is off. A free account opens a limited view of the Terminal with live odds and shows the live count of prices above fair, with the rows locked.
For the method across every sport see value betting, and for the fair price maths alone see the fair odds calculator.