St. Patrick's Day gives the world fun with everything green, but this year it also gives sports fans the second day of the NCAA men's basketball tournament and a chance to get some green themselves, thanks to some terrific March Madness sportsbook promo codes and bonuses that deliver $700 in bonus bets – guaranteed – and a whole lot more.
Many tourney favorites are playing that day, including Purdue, Gonzaga and Marquette, but the real challenge for bettors and brackets builders may be the USC/Michigan State and Drake/Miami (FL) showdowns that both look to be some of the most competitive first round contests.
This can lead to plenty of bracket busting, but if your bracket does get busted, you can still generate plenty of increased interest in the rest of the tournament by wagering on games in states where online sports betting has been legalized.
The best sportsbook promo codes are often posted at this time of year, as online sportsbooks know sports bettors are looking for superb deals right now. We aim to help sports bettors with that search, so here are five of the top promotions this week, as well as some of the features that make the sports betting apps offering those promotions stand out.
Best Betting Promos & Bonuses for March Madness
| Betting Promo | Code | Bonus |
| BetMGM promo code | WIREMARCH | Bet $10, Get $200 in |
| Caesars Sportsbook | SBWIREFULL | $1,250 First-Bet Insurance |
| DraftKings | None needed | Bet $5, Get $200 in Bonus Bets Instantly |
| FanDuel | None needed | Get 10X your bet up to $200 |
| WynnBET | XSBWIRE | Bet $100, Get $100 |