How much edge do you need to beat the vig?

What is the break-even point at -110 odds?

At -110 odds, the break-even win rate is 52.38%. Win less than that over a large enough sample and the math is bleeding, even if the picks sound sharp.

That is why a 50% true coin flip at -110 is negative expected value. The book did not build marble counters for charity.

At -110/-110 the break-even win rate is 52.38%. The useful way to read this is as a process check, not a promise about a single game. Start with the market baseline, remove the book margin when the question involves odds, and then ask whether the remaining difference is large enough to survive errors in your estimate. If the gap is thin, the disciplined answer is usually to pass or reduce stake size.

How much edge clears standard juice?

In a -110/-110 two-way market, each side implies about 52.4%, while the no-vig fair probability is 50%. The per-side margin is roughly 2.4 percentage points.

Your estimate has to beat the no-vig fair probability by more than that friction to be meaningfully +EV at the posted price.

At -110/-110 the break-even win rate is 52.38%. The useful way to read this is as a process check, not a promise about a single game. Start with the market baseline, remove the book margin when the question involves odds, and then ask whether the remaining difference is large enough to survive errors in your estimate. If the gap is thin, the disciplined answer is usually to pass or reduce stake size.

For product work, keep the loop explicit: use No-Vig Calculator and Kelly Criterion Calculator for the math, then use No-Vig Odds Calculator Guide to audit the assumptions behind the number.

Do lower-juice markets change the edge needed?

Yes. Reduced-vig markets lower the break-even bar because the sportsbook is taking less margin from the price.

That does not make every reduced-juice line good. It just means your model has less tax to overcome before the bet can show positive expected value.

For product work, keep the loop explicit: use No-Vig Calculator and Kelly Criterion Calculator for the math, then use No-Vig Odds Calculator Guide to audit the assumptions behind the number.

That distinction matters because the market can be directionally right and still not offer a bet. SharkSnip pages treat the calculator output as a starting point: the next step is checking model confidence, data freshness, and whether the edge is big enough to bet responsibly.

How should edge connect to bet size?

Once the edge clears the vig, sizing still matters. The Kelly Criterion converts edge and odds into a bankroll fraction, while fractional Kelly can tone down volatility.

No edge, no bet. Thin edge, small bet. Big claimed edge with no evidence, sunglasses stay on and the stake stays small.

That distinction matters because the market can be directionally right and still not offer a bet. SharkSnip pages treat the calculator output as a starting point: the next step is checking model confidence, data freshness, and whether the edge is big enough to bet responsibly.