Compare online sportsbook and prediction-market odds in one place and see who pays the most on a bet. Don’t let a lousy price spoil a winning pick when a few clicks could mean a bigger payout from exactly the same stake.
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BOOK VS MARKET
One Pick. All the prices.
How to use it
- Search for your event and select it.
- Tick your providers, hit Load available markets, and choose your bet type.
- Click Compare prices, select your exact pick, and enter your stake.
- Sort the results to see who offers the biggest potential payout.
Find your event
Search an event, team or competition.
Searches cover The Odds API’s available events, not the entire Polymarket or Kalshi catalogues. Event times use your device’s time zone.
Choose your providers
There is no selection limit.
Countries and regions group the source feeds. Check each provider’s location rules before using its service. Filters change this list; they do not clear your selections.
Choose your markets
Discover the markets recently offered for this event.
THE SAME SELECTION, SIDE BY SIDE
Your comparison
| Equivalent $1 cost |
Implied probability |
Your fee estimate |
|---|
Returns use the stake and decimal price supplied by the feed. Equivalent $1 costs and American odds are calculated from that price. Contract equivalents do not establish an available order-book price or fill quantity. Fee estimates are added to the stake: profit after fees = return − stake − entered fees. Calculations use the selected account currency for both stake and fees. Changing the currency changes the labels; no currency conversion is applied. Changing the event, selection, stake or currency clears fee estimates so each total applies to the wager shown.
You’ve found a bet you like. Before placing it, have a look at what other providers would pay for the same outcome. This tool brings available sportsbook and prediction-market quotes together so you can compare them using the same stake. Your usual sportsbook might come out ahead. Either way, you’ll have checked.
Find your event and choose your providers
Enter an event or team name and click Search events, then select the event you want. You can leave All available categories selected or choose a particular category or competition to narrow things down.
The search covers events supplied by the tool’s data feed. If something appears on Polymarket or another provider’s own site but doesn’t appear here, it may fall outside that coverage.
Next, tick the providers you want to compare. Choose a handful you already use or cast a wider net; there’s no five-provider limit. The provider search, country/region filter, and provider-type filter help you find your choices. Changing those filters keeps your existing selections.
Click Load available markets to see the bet types recently offered for your event. Choose the markets you’re interested in, such as moneyline, spread, or total, then hit Compare prices.
Put the same bet beside the same bet
When the results appear, use Exact selection to choose the outcome you want to compare. Pay attention to the line, player, and period where applicable. Over 47.5 points and Over 48.5 points are different bets, and the tool keeps those selections separate.
Enter your stake to see what the quoted prices would return. Return before fees includes your original stake; Profit before fees is the amount above it. For example, a $100 stake producing a $210 return means $110 in profit before fees.
You can sort the results by odds, return, or profit to bring the strongest quotes to the top. Changing your stake recalculates the figures without requesting another set of prices.
American odds are the default, with decimal odds available if you prefer. The Equivalent $1 cost column translates the quoted odds into a comparable cost per dollar of potential return. That figure is calculated from the feed price; it isn’t a confirmed contract purchase price.
Give the winning price one last check
Fees can change which offer looks best. Enter your fee estimates beside the relevant providers and compare the Profit after entered fees column. A blank fee field means the fee is unknown. Changing your stake or exact selection clears those estimates so you can enter figures appropriate to the new comparison.
Check the source timestamps, too. The tool uses cached data, so quotes can move between your comparison and your bet. Update comparison requests an update; confirm the available price and settlement rules with the provider before placing anything.
If you want to revisit or send someone the comparison, use Share comparison. The link preserves your selections and stake, while prices are pulled fresh again when the comparison is loaded. That keeps an old shared quote from pretending to be a current offer.