Bookmakers do not all offer the same price. On the same AFL match, one bookie might have your team at $1.87 and another at $1.95. That gap looks tiny, but over a season it can decide whether you finish ahead or behind. Comparing odds before every bet is the one habit that improves your results without changing a single tip.
Two free tools in one. Compare one selection across bookmakers to see what the best price is worth, or check how big the bookmaker’s margin is on a market. Nothing is saved.
Enter the odds for every outcome in one market, such as both teams in a head-to-head, or home, draw and away in soccer.
Here is what taking the better price adds when your bet wins, on a $20 stake, and over 50 winning bets in a year.
| Worse price | Better price | Extra per $20 win | Extra over 50 wins | Extra profit |
|---|---|---|---|---|
| $1.87 | $1.90 | $0.60 | $30.00 | 3.4% |
| $1.90 | $1.95 | $1.00 | $50.00 | 5.6% |
| $1.85 | $1.95 | $2.00 | $100.00 | 11.8% |
| $2.50 | $2.70 | $4.00 | $200.00 | 13.3% |
| $4.00 | $4.40 | $8.00 | $400.00 | 13.3% |
The last column is the key one. Moving from $1.90 to $1.95 gives you over 5% more profit on every winning bet, and you did not need to pick a single extra winner to get it.
Imagine a bet that is a genuine 50/50 chance, like a close head-to-head or line bet. The fair price is $2.00. This table shows what you would expect to get back, on average, for every $100 staked at different prices.
| Price you take | Average return per $100 | Average profit or loss per $100 |
|---|---|---|
| $1.80 | $90.00 | −$10.00 |
| $1.85 | $92.50 | −$7.50 |
| $1.87 | $93.50 | −$6.50 |
| $1.90 | $95.00 | −$5.00 |
| $1.95 | $97.50 | −$2.50 |
| $2.00 | $100.00 | +$0.00 |
| $2.05 | $102.50 | +$2.50 |
What this shows: at $1.87 you expect to lose about $6.50 per $100 over time. At $1.95 that drops to about $2.50. Same bets, same results, less than half the cost, just from taking the better price.
Every market has a margin built in, also called the overround. It is how bookmakers make money regardless of who wins. You can work it out yourself:
Market percentage = (1 ÷ odds of outcome 1) + (1 ÷ odds of outcome 2) + …
Margin = Market percentage − 100%
| Market | Odds | Implied chances | Market percentage | Margin |
|---|---|---|---|---|
| AFL head to head | Team A $1.60 / Team B $2.35 | 62.5% + 42.6% | 105.1% | 5.1% |
| Soccer 1X2 | Home $2.35 / Draw $3.50 / Away $2.95 | 42.6% + 28.6% + 33.9% | 105.0% | 5.0% |
The lower the margin, the better the deal for you. Margins are usually lowest on big head-to-head markets and highest on futures, exotic and player markets. If you bet multis, the margin compounds with every leg, which our multi bet calculator explains in detail.
Comparing odds on racing has an extra layer, because Australian bookmakers offer several types of price. Here is what each one means. Exact rules vary between bookmakers, so check before you bet.
| Price type | How it works | When it suits you |
|---|---|---|
| Fixed odds | You lock in the price at the time you bet | When you think the price will shorten before the race |
| Tote | You get the final pool dividend, which is only known after the race | When you expect the price to drift |
| Best Tote | You get the best of several tote dividends | Often a better result than a single tote |
| Top Fluc | You get the highest fixed price the horse reached during betting, as defined by the bookmaker | When you think the price will move a lot |
| Starting Price (SP) | You get the official price at the start of the race | When you cannot watch the market before the jump |
New to racing? Our Melbourne Cup sweep guide also explains the main Cup bet types.
Bookmakers settle some bets differently, such as overtime in the NFL and NBA, extra time in soccer, dead heats and scratchings. A slightly better price is not worth it if the rules work against your bet.
Some bookmakers limit how much you can bet at their best prices, especially on boosted odds. Check the maximum before you rely on a price.
Odds boosts and bonus bets can beat the normal price, but they often come with conditions. Read the terms before you count them as better value.
An offshore site with higher odds offers none of the Australian protections, such as deposit limits, BetStop and the right to take a complaint to a regulator. Only compare prices between bookmakers licensed in Australia. See our sportsbook reviews.
Australian bookmakers use decimal odds, which include your stake. Divide 1 by the odds to see the chance a price implies.
| Decimal odds | Implied chance | Return on $10 | Profit on $10 |
|---|---|---|---|
| $1.50 | 66.7% | $15.00 | $5.00 |
| $1.80 | 55.6% | $18.00 | $8.00 |
| $1.90 | 52.6% | $19.00 | $9.00 |
| $2.00 | 50.0% | $20.00 | $10.00 |
| $2.50 | 40.0% | $25.00 | $15.00 |
| $3.00 | 33.3% | $30.00 | $20.00 |
| $5.00 | 20.0% | $50.00 | $40.00 |
For more on reading prices, see our guide on how to read betting odds for NRL and AFL.
Odds comparison means checking the price several bookmakers offer for the same bet and taking the best one. It does not change your tips, but it increases what you win every time a bet lands.
More than most punters think. On a true 50/50 bet, taking $1.95 instead of $1.87 cuts your expected long-run loss from about $6.50 to about $2.50 per $100 staked. On a $20 bet, $1.95 instead of $1.90 pays $1 more every time you win.
Divide 1 by the odds of each outcome, add the results together and take away 100%. For example, $1.60 and $2.35 give 62.5% + 42.6% = 105.1%, so the margin is about 5.1%. The calculator on this page does this for you.
Fair odds are the prices with the bookmaker’s margin taken out. They show what the market thinks the true chance is. You will never be offered fair odds, but comparing them with the real price shows how much margin you are paying.
Yes. Two or three accounts with licensed bookmakers is enough to find a better price on most bets. More than that gets hard to manage.
Top Fluc pays the highest fixed price a horse reached during betting, as defined by the bookmaker. It can pay more than the fixed price you would have taken, but each bookmaker sets its own rules for it.
Yes. Comparing prices is legal. Just make sure the bookmakers you bet with are licensed in Australia.
Futures markets, such as premiership or Super Bowl winner, have bigger margins and less betting activity, so bookmakers’ opinions vary more. That makes comparing prices even more valuable on futures.
You cannot control whether your team wins, but you can control the price you take. Comparing odds across two or three licensed bookmakers is free, takes a minute, and adds to every winning bet you place. Use the calculator above to see what the difference is worth to you.
For more help, read our betting guide, our multi bet calculator and our responsible gaming page.
👉 See which licensed bookmakers suit you in our sportsbook reviews.
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