What Is Bettorly?

Bettorly is a sports-betting analytics tool. It shows you historical hit rates, side-by-side odds from multiple sportsbooks, and correlation analysis for parlays and player props — so you can see how a set of bets has actually behaved before you ever place it.

Put simply: Bettorly measures what has happened so you can decide what to do with it. It doesn't take your bet, and it doesn't hand you a pick.

What Bettorly is — and what it isn't

Bettorly is an analytics tool. It exists to show you how markets have behaved — hit rates, prices across books, and how bets interact — so you can make your own call with better information.

It is not a sportsbook, and it is not a tipster service. Bettorly takes no bets and holds no money. It sells no picks and runs no "bet now" or affiliate-bonus links — nothing here is trying to route you to a wager for a commission. What we show you is how often outcomes have actually hit; we don't tell you what to bet. That distinction is the whole point of the tool, and it's why the only thing we ask you to do with a number is check it.

Betting is for adults, and it should stay fun. Bettorly is built for people 21 and up, and if the fun ever stops, help is a text away: 1-800-GAMBLER.

How the numbers are made

Every number on Bettorly starts from data we collect and grade ourselves, not from a feed of someone else's opinions. We pull game results, box scores, and betting markets, then line them up so a single question can be answered honestly: how often has this actually happened?

Results are graded against official box scores. When a game finishes, each market — a team's moneyline, a game total, a player's strikeouts or total bases — is checked against what officially happened and marked hit or miss. That grading is the foundation of every hit rate you see. Because it runs off official results, a stat only exists once the games behind it have been played and graded; where we don't have enough graded games to say something true, we show nothing rather than a guess.

From those graded results we build hit-rate windows — the last 7, 15, and 30 games, plus the full season — so you can compare recent form against a longer baseline instead of reading a single number out of context. A hitter clearing a prop in 8 of his last 10 games reads very differently next to his season rate, and showing both is the point.

Alongside the results, we track odds from multiple sportsbooks for the same market, so you can see where a line is priced best rather than taking the first number you're shown. And for bets that share a game, we run correlation analysis — measuring how legs move together — which is what makes same-game pricing behave differently from a plain parlay.

You can see all of this in the open. The parlay calculator does the payout math for a straight parlay; the same-game parlay guide explains why correlated legs are priced differently; a frozen game page shows exactly how one game's markets graded out; and the MLB player props hub lets you browse how often individual hitters and pitchers have cleared their lines. Every one of those numbers traces back to a real, graded game — if you want to check it, the data page is right there.

What the app adds

The numbers on this site are the foundation; the parlay analyzer app is where you work with them. Build a parlay and see how its legs reinforce or fight each other before you commit, then follow the slate with live scores as the games you care about play out.

You can also bring your real betting history with you. The app imports bets three ways — snap a screenshot of a bet slip, paste a share link, or connect sportsbook sync to pull your bet history in automatically — and an account keeps your saved parlays and imports in sync across your devices. The app improves steadily; everything we ship lands on the changelog, dated and in plain English.

Who builds Bettorly

Bettorly is built and run by a small team that does both the engineering and the analysis:

• JJ Roelant — Founder & Engineering Lead. Builds Bettorly's data pipeline and analytics engine; focuses on prop and same-game-parlay correlation modeling.
• Christian Graham — Founder & Data Lead. Founder of Bettorly; builds the models that compute Bettorly's hit rates and correlation data across MLB, WNBA, and NFL.

The same people who build the models write about them. For the editorial side — who's on the masthead and how to reach us — see the Bettorly News masthead, and our editorial standards for how we report numbers and issue corrections.

Bettorly FAQ

Is Bettorly free?

Yes. You can browse every data page on this site and use the parlay analyzer for free.

Does Bettorly take bets?

No. Bettorly is an analytics tool, not a sportsbook. We don't accept wagers, hold money, or settle bets — we only show you the numbers behind them.

Does Bettorly sell picks?

No. We show you how often outcomes have actually hit — we don't tell you what to bet. There are no picks for sale here.

What sports does Bettorly cover?

MLB and WNBA are live in season right now. NBA and NCAAB return next season, football arrives for the upcoming NFL season, and more sports are planned.

Which sportsbooks does Bettorly cover?

Odds comparison spans the major U.S. books — DraftKings, FanDuel, BetMGM, ESPN BET, Hard Rock Bet, Caesars, Fanatics, and BetRivers. Sportsbook sync, link import, and screenshot import currently work with DraftKings and FanDuel. Support for additional books is planned.

How fresh is the data?

Odds are updated as many as eight times a day while a sport is in season, and hit rates update once finished games are graded against official box scores. Every stat reflects games that have actually been played — never a projection.

Do I need an account?

No. You can read the guides and browse every data page without signing in. An account unlocks the app's advanced features — saving parlays and keeping them in sync across devices, and connecting sportsbook sync to import your bet history.

Ready to look at your own numbers? The parlay calculator handles the payout math, and the analyzer shows how your legs reinforce or fight each other before you place anything.