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Value Finder

Every line, every book. We compare the best available price across 50 bookmakers to the de-vig market consensus and surface only the bets where the price is in your favour — plus genuine arbitrage. Free, no signup.

Fair line anchored to the sharp exchanges · 2026-09-23 22:31 UTC
All sports Any edge 3%+ 5%+ 10%+ Odds: Decimal

Risk-free Arbitrage

Back every outcome at the best price across different books for a guaranteed return regardless of result. Stakes shown for a $100 total.
Tennis +15.3% guaranteed
Alycia Parks v Leylah Fernandez
Alycia Parks @ Unibet_nl 3.200$36.88
Leylah Fernandez @ Williamhill_us 1.870$63.12
Tennis +14.2% guaranteed
Mirra Andreeva v Aliaksandra Sasnovich
Over @ Williamhill_us 2.700$43.16
Under @ Nordicbet 2.050$56.84
NCAAF +12.0% guaranteed
Ohio State Buckeyes v Illinois Fighting Illini
Illinois Fighting Illini @ Kalshi 2.500$45.45
Ohio State Buckeyes @ Polymarket 2.083$54.55
MLB +1.7% guaranteed
Detroit Tigers v Washington Nationals
Over @ Matchbook 1.930$52.70
Under @ Williamhill 2.150$47.30
MLB +1.7% guaranteed
Boston Red Sox v Cleveland Guardians
Over @ Lowvig 1.930$52.70
Under @ Everygame 2.150$47.30
MLB +0.8% guaranteed
Chicago Cubs v Miami Marlins
Chicago Cubs @ Onexbet 2.400$42.01
Miami Marlins @ Polymarket 1.739$57.99
MLB +0.5% guaranteed
Texas Rangers v New York Mets
New York Mets @ Everygame 2.000$50.25
Texas Rangers @ Matchbook 2.020$49.75
MLB +0.5% guaranteed
Texas Rangers v New York Mets
Over @ Kalshi 2.000$50.25
Under @ Polymarket 2.020$49.75
MLB +0.5% guaranteed
Pittsburgh Pirates v St. Louis Cardinals
Over @ Ballybet 2.020$49.75
Under @ Sport888 2.000$50.25
MLB +0.3% guaranteed
Seattle Mariners v Houston Astros
Over @ Matchbook 1.920$52.24
Under @ Espnbet 2.100$47.76
NCAAF +0.2% guaranteed
UTSA Roadrunners v Colorado State Rams
Colorado State Rams @ Lowvig 1.990$50.37
UTSA Roadrunners @ Polymarket 2.020$49.63

+EV Positive Expected Value

Best price beats the sharp fair line — our de-vig consensus anchored to the sharp exchanges (Betfair, Smarkets, Matchbook), not a soft-book average that inflates the edge. Fair is that sharp price; Stake is a suggested quarter-Kelly size in units (% of bankroll).
SportBetBestFairBookEdgeStake
Tennis
Leylah Fernandez
Alycia Parks v Leylah Fernandez
 1.87 1.52 Williamhill_us +22.8% 5.00u
Tennis
Under
Mirra Andreeva v Aliaksandra Sasnovich
 2.05 1.75 Nordicbet +16.8% 4.01u
Tennis
Over
Mirra Andreeva v Aliaksandra Sasnovich
 2.70 2.33 Williamhill_us +16.1% 2.37u
NCAAF
Illinois Fighting Illini
Ohio State Buckeyes v Illinois Fighting Illini
 2.50 2.16 Kalshi +15.8% 2.63u
NCAAF
Ohio State Buckeyes
Ohio State Buckeyes v Illinois Fighting Illini
 2.08 1.86 Polymarket +11.8% 2.73u
Tennis
Alycia Parks
Alycia Parks v Leylah Fernandez
 3.20 2.91 Unibet_nl +9.9% 1.13u
MLB
Under
Detroit Tigers v Washington Nationals
 2.15 2.05 Williamhill +5.1% 1.12u
MLB
Under
Boston Red Sox v Cleveland Guardians
 2.15 2.06 Everygame +4.4% 0.95u

Common questions

What is a positive expected value (+EV) bet?

A +EV bet is one where the best available price is higher than the bet's fair price — the true probability with the bookmaker's margin removed. Over the long run a +EV bet profits on average, even though it does not guarantee any single result.

What is sports arbitrage?

Arbitrage (an “arb”) means backing every outcome of an event at different bookmakers so the combined prices guarantee a profit regardless of the result. It exists when the implied probabilities of the best available prices sum to less than 100%.

How does the Value Finder find value?

It compares the single best price across 50 bookmakers to the de-vigged consensus of all 50 books — the sharp market's fair estimate — and surfaces only the bets where the best price is in your favour, ranked by edge.

Does a +EV bet guarantee a win?

No. +EV means a positive long-run edge, not a guaranteed result on any single bet. Only arbitrage locks in a guaranteed return, and only if you get every leg down at the listed prices before they move.

Is the Value Finder free?

Yes. It is free with no signup, and it refreshes from the latest odds snapshot multiple times a day.

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How to read this: +EV means the best price is higher than the sharp fair price — our de-vig consensus anchored to the sharp betting exchanges — so the bet has positive expected value over the long run; it does not guarantee any single result. Stake is a disciplined quarter-Kelly size as a percentage of your bankroll (1u = 1%), capped at 5u — a sizing guide, not advice; only ever bet what you can afford to lose. Arbitrage is mathematically locked profit if you get all legs down at the listed prices. Odds move fast and books limit winners, so prices may change before you bet. 18+. Gamble responsibly.
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