The biggest and most storied professional golf tournament of the year is set to begin Thursday from Augusta, which means now is the time to lock in with the best Masters betting promos. These golf sportsbook offers range from instant bonus bets to first-bet offers from the best brands in legal online sports betting.Below, you'll get a full look at all of the top golf sportsbook offers, including full details and how to sign up throughout the coming days.Best Masters Betting PromosWith a combination of bet-and-gets (some of which convey bonuses instantly upon a first qualifying wager) and big four-figure first bet offers (maxing out at $1,500 at BetMGM in select states), golf fans and sports bettors alike will have plenty of opportunities to extract value both before and during this year's Masters.Bet-And-Get OffersFirst, let's take a look at the brands offering some variation of a bet-and-get.DraftKings Sportsbook: New players at DraftKings can make a $5+ first deposit and a qualifying first wager of at least the same amount. Upon doing so, golf bettors will score $150 in total bonus bets, broken up into six $25 bonus bets. From there, such funds can be played on tournament winners, round-by-round matchups and scoring markets, among others.FanDuel Sportsbook: In terms of total upside of Masters betting promos, FanDuel is the place to be, particularly given that a $5 first bet can turn into $250 of total bonus bets. While the overall upside is greater at FanDuel, it's important to note that the $5 first wager must win in order to qualify for the offer, so new players are encouraged to find a game or market across the NBA, MLB, NHL or The Masters that they feel strongly about.bet365 Bonus Code: Those who like some choice in their bonuses will appreciate bet365 Sportsbook, as it is the only one that offers players a choice. Those who like a bet-and-get will be able to turn a $5 first wager into $150 of bonus bets once their qualifying wager settles. In this offer, a player does not have to win the wager to qualify.BetMGM Bonus: In a handful of states (CO, MI, NJ, PA or WV), BetMGM is offering its new users a bet $10, get $150 bonus. Elsewhere, players can receive an alternate offer.Caesars Sportsbook: Players in select states can sign up at Caesars, make a $10+ first deposit and a $1 first bet. Upon doing so, Caesars will issue out $150 in bonus bets. In other states, the app is offering 10 "double your winnings" profit boosts upon signing up.Fanatics Sportsbook: In some states (AZ, CO, CT, IN, LA, MA, MD, MI, NJ, PA, TN, VA or WV only), new bettors can qualify for a bet $30, get $300 in bonus bets offer.Masters Betting Promos: First-Bet OffersFor those who wish to tackle the tournament with a first-bet offer that pays back losing first wagers in bonus bets -- often termed no-sweat bets, safety nets and other similar names -- the following offers are worth checking out.BetMGM Sportsbook: In states not listed above where the app runs, BetMGM bonus code NEWSWEEK1500 (get it above) will give players up to a $1,500 first bet offer. In terms of the biggest value for Masters betting promos, here it is.bet365 Sportsbook: Use the bet365 link above to claim a $1,000 safety net offer if you do not wish to grab the $150 in bonus bets.Fanatics Sportsbook: Again, in states that have the Fanatics app but are not listed above, players can sign up and grab $1,000 in no-sweat bets.Newsweek may earn an affiliate commission if you sign up through the links in this article. See the sportsbook operator's terms and conditions for important details. Sports betting operators have no influence over newsroom coverage.