I did this with BET (whatever Jamie Foxx endorses).
I had to make my bet in the casino - Beau in Biloxi.
Deposaited $1k, bet $1k on TB to beat Phil. Won, cashed out my $1909 and that was it.
Pretty easy and no hassle when I cashed out...
And if you're just an occasional sports bettor and you want to lock in the profit rather than take the most +EV bet you can, hedge at a second book with the other side. So for example, you can bet +300 at a book giving you a $1,000 risk-free bet and $2,592 at a second book on the same game at -350. If the underdog wins, you're up $408 and you're done.
Now if the favorite wins, you lost $260 but still have a free bet left. So just for the sake of this example, let's say you find a second game where you can bet +300/-350. Do the same bet, except this time put $2,333 on the favorite and your $1,000 free bet on the underdog. Now you either win $3,000 on your free bet minus the $2,333 hedge for a profit of $666 or you win $666 straight up on the $2,333. Combine that with your loss of $260 in the first leg of the bet and you're up $406, roughly the same as if your free bet had won originally.
The numbers change depending on how good you are at line shopping and whether or not you have enough cash available to fully hedge a longer shot bet. But if you've got a few thousand bucks sitting around in savings that you don't want to put at risk, this is about as risk-free a way to get a substantial return on it for virtually zero work that you can find.
I made a spreadsheet to do all the math for me when I was grinding all the new user bonuses recently. If you want to use it, just make your own copy of it.
I'm off to Vegas next week for first time in a few years, need to sign up for online books, is there a good summary of bonuses available for the online books there anywhere? I can obv google but this forum tends to be all knowing.
I'm not a huge sports bettor, will probably bet my way through about $500-1k total only, but there's probably something out there for me.
Yes the sign up bonuses and offers such as "risk free bets" and "deposit match" offers are all legit, however, definitely read the terms for these bonuses as there may be certain restrictions/actions you must take.