The sportsbook promo terms that actually change what it's worth

Five terms decide what a sportsbook promo is actually worth, and none of them is the headline number: the minimum odds it requires, when it expires, which markets it covers, the max stake it applies to, and whether a refund comes back as cash or a bonus bet. A promo ad assumes the best case on all five. The terms page tells you which case you're actually in, and each one can move the real value by more than the boost percentage does.

Minimum odds decide which side can even use it

Boosts and no-sweats often set a floor: "minimum odds of +100," say, meaning only underdogs and pick'ems qualify, not favorites. The floor picks the side for you, and that side isn't always the one you'd have bet anyway.

Say a sharp book has a game at -140 / +120. With the vig removed, the fair chances are 56.2% for the favorite (a fair price near -128) and 43.8% for the underdog (near +128). Your book has the favorite at -120, which beats fair and is worth about +$3.04 per $100 on its own. The underdog sits at +110, worse than fair, worth about -$8.03 per $100.

A 50% profit boost today requires +100 or longer, so it only applies to the underdog. Boosted, that bet's decimal odds move from 2.10 to 2.65, and the EV turns to about +$16.06 per $100 — bigger than the unboosted favorite, even though the favorite was the better bet before the boost. That's not guaranteed: a smaller boost on the same gap would have left you choosing between a bad bet and no bet at all. Work out the EV for the side that actually qualifies before assuming the boost is free value, the same way you'd check an odds boost against fair rather than against the old price.

Expiry turns into zero, not a discount

A bonus bet or promo credit that goes unused doesn't lose a little value as the deadline passes — it loses all of it. A $50 bonus bet converted within the window at a typical 70% is worth about $35. Let it expire and it's worth exactly $0, the same as never having gotten it.

The qualifying bet usually has its own separate clock, too: the game or event it's placed on has to settle within a set number of days for the bet to count at all, before the bonus bet's own redemption window even starts. Missing either one, not just the second, zeroes out the whole promo.

Eligible markets are the fine print that actually bites

A no-sweat or insurance offer that reads as "your next bet" usually isn't. Most restrict the qualifying bet to certain markets — game lines but not props, pre-match but not live, a specific sport during a promo window — and a bet outside that list doesn't trigger a refund even though it looked eligible when you placed it.

Take the no-sweat bet example from our calculator: $100 at +120, with a sharp book pricing the same side +130 / -150. The vig-free fair chance is 42.0%, so the bet is worth -$7.56 per $100 on its own. With the no-sweat refund applying, the loss comes back as a $100 bonus bet worth about 70% converted, and the whole promo is worth +$33.03. Place that exact bet on a market the promo doesn't cover, and nothing changes except the refund: you're back to the unprotected -$7.56, a swing of over $40 from one line of fine print.

Max stake caps how much of the promo is real

The refund or boost usually applies only up to a cap, separate from however much you actually want to risk. Money above the cap gets no promo at all, just the book's ordinary price.

Keep the same no-sweat bet above, but stake $300 with the offer's $100 cap. The first $100 is covered and worth that same +$33.03. The remaining $200 gets no refund, so it's worth the unprotected rate of -7.56%, or about -$15.13. Together the $300 bet is worth about +$17.90 — far short of the roughly +$99.08 it would be worth if the cap matched the stake. The promo didn't get three times bigger because the stake did; only the first slice did.

Stake returned or not changes the math more than any other term

The biggest swing in this whole list is what a refund actually pays back. A bonus bet never returns its stake, so a $100 refund paid as a bonus bet and converted at 70% is worth $70, not $100. Pay close attention to whether a no-sweat or insurance offer's terms say the refund is a bonus bet (the near-universal case now) or site credit that behaves the same way, versus the much rarer offer that returns actual cash.

Using the no-sweat example again: with the refund as a $100 bonus bet converted at 70%, the promo is worth +$33.03, as above. If the exact same offer instead returned the $100 stake as cash on a loss, the math changes to a straight win-or-break-even bet: 42.0% of the time you win $120, and the rest of the time you get your $100 back with nothing lost. That version is worth +$50.42 — about $17 more than the bonus-bet version, from changing nothing but how the refund is paid.

Read the terms before you read the banner

None of these five terms show up in the ad. They're on the promo's own terms page, and they vary by book and by offer, so check the current version before you bet rather than assuming last month's rules still apply. The percentage or dollar figure in the banner is the best case; the five terms above are what tell you how close your actual bet gets to it. Run the no-sweat calculator or the matching tool for whatever offer you're looking at once you know the real numbers, not the advertised ones.

Betting is for adults 21+ where legal, with money you can afford to lose.