Bet builder.
Best odds.
Best community.
One octopus watching every sportsbook and prediction market at once, so you always see who’s paying the most.
10 venues · 7 sports
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01 · Bet builderBuccaneers ML+400Eagles ML+270Parlay · $50 to win $875+1750
Pick your legs, see the parlay price.
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02 · Best oddsNovig−101 FanDuel−105 DK−112
Every leg checked across books and markets.
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03 · Best communityOver 47.5 · Lamb 7+ rec · Egbuka 3+ rec
Send it to your group. Everyone adds one.
Demonstration data
Tap a price. Watch the slip build.
Best price on every moneyline, spread or total, across your venues.
Demo board · NFL · sample prices, not live
Demonstration data Every price, percentage and sportsbook on this board is a sample, not a live line. The percentage is the chance a price implies before the book’s margin. In the member app, tapping a book opens it in a new tab; OctopusOdds never places a bet for you.
Free to compare, always — and free to track: log bets by hand, import a CSV, or upload a slip screenshot. Membership is meant to add sportsbook sync with verified bets and price-move alerts, still coming.
See membershipHow much are you leaving on the table?
Your stakeWhat $25 returns
Saints · Falcons · Buccaneers ML- Novig (best price) $372.83
- Hard Rock Bet $337.83
- Caesars $332.90
- DraftKings $323.80
- theScore Bet $323.45
- Fanatics $316.40
- BetMGM $310.08
- FanDuel $309.00
Bars start at $0. Returns include your stake. Sample parlay prices, not live.
Building a props parlay? Start at the book that wins the most.
For every game, we count which sportsbook has the best price on each player prop. A parlay has to live at one book, so pick the one that’s best most often.
One NFL game · player props
Demonstration dataDraftKings has the best price on 43% of this game’s props. Build your props parlay there.
Build one parlay
as a group.
Open a group parlay, set the odds range, and every member adds one leg until the ring is full.
- −250 to +350
- 1 each
- Over 47.5@member +100
- Lamb 7+ rec@member +122
- Egbuka 3+ rec@member −150
- Open leg — yours?
You bet. We grade it at kickoff.
Your report card fills in on its own when the game starts: the closing price, your CLV and whether you beat the close.
Chiefs −3
- Your price
- −101
- Fair price
- −108
- Closing price
- −118At kickoff
- Closing line value
- +17¢Pending
Fair is −108, so you took the good side of the number. The closing price and CLV fill in when the game starts.
The market closed at −118, so you got in 17¢ cheaper. That’s positive CLV, whether the bet wins or loses.
Shop for free. Measure as a member.
Prices are placeholders. Billing is not live yet, so every account is free early access today.
The whole board,
in your pocket.
Tap prices, flip between straight and parlay, see every book, and post to your group — all from your phone.
- Open app.octopusodds.comIn Safari or Chrome on your phone.
- Tap Share → Add to Home ScreenPuts the board one tap from your home screen.
On a computer? Scan with your phone’s camera.
Questions, answered straight
Including the ones with answers you might not want to hear. If something’s missing, ask us.
What is OctopusOdds?
A tool for sports bettors who already know what they want to bet and want to stop losing money on the price. The Bet builder puts every sportsbook and prediction-market price for the same bet on one screen and flags the best one, lets you build straight bets and parlays, and lets you build a parlay together with friends in groups.
We’re not a tipster feed. Most bettors don’t lose to bad picks — they lose to bad prices, and that’s a problem you can fix today without getting any better at picking.
Is OctopusOdds live yet?
The member app is open as a free early-access preview. You can create an account today and use the Bet builder (the odds board, game pages with alternate lines and player props, and a straight or parlay slip that shows every book’s price), Community (friends, groups and group parlays), and the Bet tracker (log bets by hand, import a CSV, or use AI upload on a slip screenshot; your own bets always show as Unverified, and closing-line value fills in for games we collect prices on). Sports with real games collected show real matchups; the rest show clearly labelled demonstration games, and every example on this website is demonstration data.
Still on the way for members: sportsbook sync with verified bets, verified closing-line value, price-move alerts, and billing. No payments are being taken yet, and we haven’t chosen or validated any betting strategy, so OctopusOdds publishes no picks.
Do you place bets for me?
No, and we never will. OctopusOdds is research only. You place any bet yourself, at your own sportsbook, with your own money. No wagering happens on this site and we never touch your betting account.
Do you guarantee I’ll make money?
No. Anyone who tells you otherwise is selling you something. Betting markets are competitive and any edge is small, uncertain, and can disappear. Past results — ours or anyone’s — don’t predict future ones.
What we can commit to is explaining how every number on screen is calculated.
What does “demonstration data” mean?
Every price, chart and example on this website is invented sample data, there to show how the product works. It is never presented as evidence that anything is profitable. Inside the app, games with real collected prices are shown as such and the rest are labelled demonstration.
What does the percentage under each price mean?
It’s the chance that price implies, before the book’s margin (1 divided by the decimal odds). A price of −110 implies about 52.4%. It’s a way to read a price, not a prediction that the bet will win.
What is closing-line value, and why does it matter?
It compares the price you got to the final price just before the event starts. Consistently beating the closing line is one of the few honest signs that a bettor is finding real value rather than getting lucky. The Tracker works out your CLV for bets logged against games we collect prices for; hand-typed games show no CLV. CLV on verified bets needs sportsbook sync, which is still coming.
Which sports and sportsbooks do you cover?
Seven sports are set up: NFL, college football, college basketball, MLB, NBA, NHL and UFC (UFC is moneyline only). Ten venues are compared: the sportsbooks DraftKings, FanDuel, BetMGM, Caesars, Fanatics, Hard Rock Bet and theScore Bet, the no-fee Novig exchange, and the prediction markets Kalshi and Polymarket. Real prices currently flow for some sports and venues; the rest show labelled demonstration prices.
Prediction markets sit next to the sportsbooks because their prices can be better, and because a contract trades in cents the price is a probability with no bookmaker margin buried inside it. Availability varies by state, so not every member will be able to trade on them.
What will membership cost?
The figures in the plan table on the homepage are placeholders while we finish the product — they’re there to show the layout, not to quote you a price. Billing isn’t switched on, so everything is free during the preview. Final pricing gets set before anyone is charged.
Will I be able to cancel?
Yes. When billing opens it will be a normal monthly or annual subscription you can cancel yourself from your account page, without emailing anyone to ask permission.
Is this available where I live?
Sports betting laws differ by state and country, and it’s on you to know the rules where you are. OctopusOdds is research and analysis, not a sportsbook, but we’ll confirm where memberships are offered before charging anyone.
Do you have an app?
The app is a web app: open app.octopusodds.com on your phone, then use your browser’s Share menu and choose Add to Home Screen for a one-tap shortcut. A native iOS and Android app may follow once the web app is finished.
Isn’t the best price just the highest odds?
Not always. −3.5 at −105 and −3 at −115 aren’t the same bet, because the line is different, so you can’t rank them on price alone. In the Bet builder, each price box compares the same line across venues and flags the best price for it. When lines differ, look at the line first: crossing a key number like 3 or 7 usually matters far more than a few cents of price.
Do you take commission from the sportsbooks?
No. No affiliate links, no referral fees, no tracked links anywhere on the site or in the app.
That’s a deliberate choice rather than an oversight. The moment we’re paid per signup, we have a reason to send you somewhere other than the best price — and the best price is the entire product. Your membership is the only thing that will pay us.
Do I need accounts at every sportsbook?
No. Every venue’s price for the bet is shown side by side, so you can use the books you already have and see how your own book compares with the best number.
How do I get in touch?
Email jake@octopusodds.com. There’s more on the contact page.
Bad prices,
not bad picks.
Most bettors don’t lose because their picks are bad. They lose because they never see the best price. OctopusOdds started as a way to fix that: one screen showing every sportsbook and prediction-market price for the same bet, so you always know what you’re actually getting.
We’re building in public: the Bet builder and Community are live in free early access, and the examples on this site are demonstration data. The FAQ says exactly what’s real today and what’s still coming.
No guaranteed wins
Nobody can promise a win. We show you the prices and let you decide.
No fabricated track record
Demo data is labelled as demo data. Real records stay separate.
No affiliate incentive
Venues are ordered by price, nothing else.