Does a positive edge mean the bet is likely to win?

No. The market still implies about a 13.4% chance this hits at the offered odds. A +EV bet pays more than its true probability warrants — most +EV bets at long odds still lose individually.

How are fair odds calculated?

Sportsbook prices on the same market are de-vigged and averaged to estimate a true win probability. Using the available market price, we estimate 13.1%, which converts to fair odds of +662.

Why does this grade differ from the sportsbook's advertised lift?

Books quote lifts vs their own original line, which already includes margin. We compare the price to a vig-free consensus, so an advertised lift can still grade poorly if the underlying line was inflated.

Should I bet every bet that grades well?

Grading is a price-quality signal, not a guarantee. Even a C-grade bet can lose. Size within your bankroll, account for correlation, and don't chase results.

Double — C Grade — Market-Neutral Bet (45/100)

Q: What does a -2.2% edge mean?

A negative edge of -2.2% means the price (+645) is worse than fair value (+662). You can still win, but the long-run math is against you.

All analyses

AiOddsLab

Bet365

Better Off PassingBalancedC

Price or risk doesn't justify it

Double

Not enough confirmed value to recommend — pass unless this is a small entertainment play.

Stake idea · Balanced

0.25u · Small

Coin flip on price. Bet it for the action, not the edge.

Your odds

+645

Fair odds

+662

Edge

—

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Inside angles

Researching…

Pulling weather, lineups, head-to-head, and schedule spots…

Angles are surfaced only when backed by a specific fact. Verify lineups and weather close to game time.

AI breakdown

Verdict: This single-leg bet has an interesting offered price!

Value: The offered price of +645 is just a tiny bit behind the devigged fair odds of +662, resulting in a small negative edge at -2.23%.
Market context: Your price is at +645, while the fair odds calculated are slightly better at +662.
Status: No notable injury signal.
Social: the matchup data on social media.
Risk: This is a single-leg wager at a longshot price.

Smart insight: The value depends entirely on the accuracy of the single underlying event. Similar profile: the matchup longshot outright bets of this nature often resolve with low frequency, making small value differences impactful. Counter-case: The micro-negative edge against the fair odds suggests the price may be slightly off. Live context: the matchup for any news about the specific event this bet refers to before it goes live. Stake suggestion: the matchup.

How this bet was graded

Grade C · 45/100 · Better Off Passing

Double at +645 on Bet365: we devig the available market on the same market to estimate a true win probability of 13.1% — fair odds +662. The gap between +645 and +662 is the -2.23% edge: your long-run expected return per dollar if the market is right about true probability. At odds this long, even a strong edge cashes infrequently — variance dominates any short sample. Fair value here was derived from the host book's own line — treat the edge as directional, not precise.

Frequently asked questions

What does a -2.2% edge mean?

Across many identical wagers, you'd expect to lose about 2.2 cents on every dollar staked — the offered +645 is worse than the consensus fair price (+662). Any single ticket can still cash; the math just runs against you over time.

Does a positive edge mean this is likely to win?

No. The price still implies roughly a 13.4% chance the ticket cashes. +EV means the payout exceeds the true probability — most positive-EV longshots still lose individually. The edge only shows up across many similar bets.

Should I bet every A-grade ticket?

Grading is a price-quality signal, not a prediction. Even an C-grade ticket can lose. Size within your bankroll, account for correlation between legs, and use Inside Angles above to spot factors the price hasn't absorbed yet.