Even with No. 1 seed Purdue missing, Sunday’s NCAA Men’s Championship Tournament slate should feature some of the best teams in this tournament, as Baylor, Kansas State and Marquette take the field today (along with 16 seed Fairleigh Dickinson!). And while you’re watching the best teams, why not take advantage of the best March Madness betting promotions offered by online sportsbooks right now.

If FDU, Princeton and Furman upsets in Round 1 have already ruined your bracket, and if you’re in a state where online sports gambling is legal, the ability to bet on the rest of the tournament is a great way to recapture the excitement of this time of year. The NCAA Tournament is one of the most exciting times of the year for punters and sports betting sites are busy trying to one-up each other by releasing bold March Madness betting promotions in an attempt to recruit new customers.

There are many variations in these offers, so we’ve put together a list of the top five March Madness betting promotions to give you details about what they offer and what type of bets each bookmaker specializes in.

Best March Madness Betting Promotions for Day 4

Caesars Sportsbook Promo Code SBWIREFULL

New customers get a double benefit for registering for a new account with Caesars Sportsbook promo code SBWIREFULLas they get a bet credit refund of up to $1,250 if their opening bet loses and receive 1,000 level credits and 1,000 reward credits regardless of how their first bet turns out.

Caesars Sportsbook is a fantastic place to bet for those who enjoy odds increases and fast singles players, as it features a wide range of these daily.

BetMGM Bonus Code WIREMARCH

The BetMGM bonus code WIREMARCH gives new users who wager $10 on any game on the tournament schedule $200 in bonus games regardless of their first bet. That’s at least a 20-1 return – and more if your first bet wins. The bonus games are paid out as four $50 bonus games, have 1x playthrough and expire in seven days.

BetMGM is a go-to online sportsbook for parlay bettors, as the Easy Parlay system makes it quite easy to navigate through the entire sports schedule for today’s parlay offers.

DraftKing’s Promo Code

Bet and get deals don’t get much better than that DraftKing’s Promo Code, as this offer will allow first-time customers to get $200 in bonus games after placing a $5 bet with real money. All you have to do is sign up for the offer and have your $5 bet and eight $25 bonus games sent to your account.

DraftKings does a lot of things well, but it’s especially good in the world of prop betting, as it offers categories that few if any other sports betting apps offer.

FanDuel Promo Code

FanDuel is one of the true innovators among sports betting apps, and that penchant for creativity shows in FanDuel Promo Code. First time customers who create an account with this offer will receive 10x the value of their first wager in bonus games. This applies to any first bet up to $20, so if your first bet is $20, you will land $200 in bonus games.

FanDuel excels in all areas, but one of its strongest attributes is the number of ongoing promotions it provides to current customers.

WynnBET promo code

The WynnBET promo code goes the direct value route, as new customers who place a $100 bet will receive a $100 free bet in their account within 24 hours of the first bet being settled. This $100 free bet is yours whether the first bet wins or loses, but the first bet must be a straight or parlay bet of $100 or more, on any sport, with odds of -120 or higher.