Even with No. 1 seed Purdue missing, Sunday slate for the NCAA men's championship tournament should have some of the best teams in this tourney, as Baylor, Kansas State and Marquette take to the court 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 promos being offered by the online sportsbooks right now.
If the FDU, Princeton and Furman upsets in Round 1 already busted your bracket and if you are in a state where online sports gambling is legal, the option for wagering on the remainder 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 bettors and sports betting sites are busy trying to one-up each other by releasing bold March Madness betting promos in an effort to recruit new customers.
There are many variations in these deals, so we've put together a list of the top five March Madness betting promos to give you details about what they offer and what type of wagers each sportsbook specializes in.
Best March Madness Betting Promos for Day 4
| Betting Promo | Code | Bonus |
| Caesars Sportsbook | SBWIREFULL | $1,250 First-Bet Insurance |
| BetMGM promo code | WIREMARCH | Get $200 in Bonus Bets when you wager $10 on March Matchups |
| DraftKings | None needed | Bet $5, Get $200 in Bonus Bets Instantly |
| FanDuel | None needed | Get 10X your bet up to $200 |
| WynnBET | None needed | Bet $100, Get $100 |
| BetRivers | SPORTS | 2nd Chance Bet up to $100 |
New customers get a dual benefit for registering for a new account with the Caesars Sportsbook promo code SBWIREFULL, as they get a bet credit refund of up to $1,250 if their opening wager loses and receive 1,000 Tier Credits and 1,000 Rewards Credits regardless of how their first bet turns out.