What Are Bonus Bets and No Sweat Bets?
If you've signed up for any major sportsbook, you've probably been handed a bonus bet (sometimes called a "free bet") or a no sweat bet as part of a welcome offer or promotion. Before you slap that bonus on a -200 favorite and call it a day, read this. The way you use these offers can be the difference between pocketing $50 and pocketing $600.
Bonus bet: The sportsbook gives you a bet token (say, $100). If your bet wins, you collect the profit only — the original $100 stake is not returned. If you lose, you lose nothing since it wasn't your money.
No sweat bet: You place a real-money wager. If it wins, everything works like a normal bet. If it loses, the sportsbook refunds your stake as a bonus bet. It's essentially insurance on your first wager.
The Key Difference That Changes Everything
With a normal bet, when you win you get your stake back plus the profit. With a bonus bet, you only get the profit. That one difference completely changes which bets are smart to make.
Think about it this way: if you're not risking your own money (or you're getting it back if you lose), why play it safe? The downside is already covered. The only question is how to maximize the upside.
Simple Example: Favorite vs. Underdog
Let's say you have a $100 bonus bet. Here are two ways you could use it:
| Bet | Odds | If You Win | If You Lose |
|---|---|---|---|
| Heavy favorite | -200 | You profit $50 | You lose $0 |
| Underdog | +600 | You profit $600 | You lose $0 |
Both bets cost you nothing if they lose. But the underdog pays 12x more if it wins. Sure, the favorite is more likely to hit — but is it 12x more likely? Not even close.
The Math Made Simple
Expected value (EV) tells us how much a bet is "worth" on average. For a bonus bet:
EV = Payout × Probability of Winning
Here's how different odds levels compare on a $100 bonus bet:
| Odds | Implied Probability | Profit if Win | Expected Value |
|---|---|---|---|
| -200 | 66.7% | $50 | $33.33 |
| +150 | 40.0% | $150 | $60.00 |
| +300 | 25.0% | $300 | $75.00 |
| +400 | 20.0% | $400 | $80.00 |
| +600 | 14.3% | $600 | $85.71 |
| +800 | 11.1% | $800 | $88.89 |
The trend is clear: the longer the odds, the higher the expected value of your bonus bet. A +600 underdog has nearly triple the EV of a -200 favorite. Even a +400 pick is worth more than double.
No Sweat Bets: Same Logic Applies
A no sweat bet works slightly differently — you place a real wager, and if it loses you get the stake back as a bonus bet. But the strategic takeaway is the same: the downside is cushioned, so lean into longer odds.
If you bet a -200 favorite and it wins, great — but you would have won that bet anyway. If it loses, you get a bonus bet back, which (as we just showed) you should use on a longer shot. So why not skip the middleman and go for the bigger payout from the start?
Practical Tips
- Sweet spot: +400 to +800. This is where the real value is. You're swinging for a big payout while your downside is completely covered. Don't settle for small plus-money — go bigger.
- Don't go too crazy. A +5000 long shot might look tempting, but those bets still lose the vast majority of the time. Expected value is theoretical — you only get one shot with each bonus bet, so keep it within reason.
- Keep it to one leg. Every leg you add to a parlay bakes in more vig for the sportsbook. A single straight bet at +500 is mathematically better than a two-leg parlay that pays the same odds. Fewer legs = less juice working against you.
- Player props are great bonus bet vehicles. Markets like "Player X to score 30+ points" or "Player Y over 2.5 touchdowns" regularly land in the +400 to +800 sweet spot as a single pick — no need to parlay.
- Use them before they expire. Most bonus bets have an expiration date (often 7–14 days). A wasted bonus bet has an EV of exactly $0.
The Takeaway
Stop wasting bonus bets on heavy favorites. When the sportsbook removes your downside risk, the mathematically smart move is to swing for a bigger payout. Aim for the +400 to +800 range on a single straight bet — player props are perfect for this — and make that free money work as hard as possible.
