Sweeps sites that take sports wagers, each with its independent SweepsGuard grade — and a guide to turning the free bets they hand out at sign-up into value you actually keep. A free bet is stake-not-returned, so it belongs on an underdog, and a hedge converting at 60% or better is the target.
A sportsbook that runs on the dual-currency sweepstakes model instead of taking cash wagers. You play with a promotional currency and a separate sweeps currency, and the sweeps side is what can be redeemed. It is how these sites operate in states without regulated online sports betting.
Almost every sportsbook free bet is stake-not-returned, meaning you keep the profit but not the token itself. A $50 free bet at -200 pays $25; the same $50 at +300 pays $150. That is the whole reason free bets belong on underdogs rather than favorites.
Look for a hedge that converts at 60% or better — so a $50 free bet locks in roughly $30 or more. Below that it is usually worth waiting for a better line rather than forcing it.
You can, but you should not. Books watch for it, and betting both sides of the same market on one account is a common way to get limited or have the account closed outright. Hedge somewhere else.
Not directly, with the exception of Rebet on OddsShopper. For the others you substitute the regulated book whose lines the sweeps book tracks — Onyx Odds and Courtside follow DraftKings, for example — and run the math against that instead.