Best March Madness betting promos: Unlock $3,600 in bonus funds to bet on Sweet 16 games
Register with the top March Madness betting promos on the market today to wager on college basketball Sweet 16 action. All the sign-up bonuses in this article are among the best sportsbook promos in the online sports betting industry. The maximum amount of bonus funds you can claim with these sports betting promos is $3,600.
Bet on Sweet 16 games with the best mobile sportsbooks and the March Madness betting promos offered in the U.S. by clicking any of the sign-up modules below.
Each of the March Madness betting promos is easy to sign up with and offers a strong promo for new users, whether it’s a first bet offer, bet-and-get offer, or any other type of offer.
- bet365 bonus code RGNEWS: $1,000 First Bet Safety Net or bet $5, get $150 in bonus bets, win or lose
- Fanatics Sportsbook promo: Bet $30, get $300 in bonus bets or Fanatics Sportsbook promo: Bet and get up to $1,000 in No Sweat Bets
- BetMGM bonus code RGNEWSGET: Bet $10, get $150 in bonus bets if you win or BetMGM bonus code RGNEWS1600: 20% deposit match, up to $1,600 in sports bonus funds or BetMGM bonus code RGTOP: First bet on the house, up to $1,500
- Caesars Sportsbook promo code RGTOPDYW: Bet $1, get 10 100% Profit Boost Tokens
Best March Madness betting promos: Sign up with the best sportsbook promos to bet on the Sweet 16
bet365
Redeem one of the top March Madness betting promos when you claim either bet365 promo. Sign up with the bet365 bonus code RGNEWS and get a $1,000 First Bet Safety Net or $150 bet-and-get offer. The $1,000 First Bet Safety Net returns the stake of your first bet back in bonus bets if you lose, up to $1,000.
The $150 bet-and-get promo simply pockets you $150 in bonus bets when your $5+ first bet settles, whether that’s a win or loss. In Pennsylvania, your exclusive offer is the $150 bet-and-get promo with a second bonus of 50 online casino spins. Make sure your first bet has -500 or longer odds in order to qualify for your bet365 sign-up bonus.
- Click the sign-up module below to register in AZ, CO, IA, IL, IN, KY, LA, NC, NJ, OH, TN, and VA.
- Use the offer module below to sign up in PA
Fanatics Sportsbook
Another destination to claim one of the March Madness betting promos is Fanatics Sportsbook. Sign up with the Fanatics Sportsbook promo and get $100 in bonus bets each of your first three days. Unlock $100 in bonus bets each day by placing a $10 bet on March Madness.
A different promo to sign up with is $1,000 in No Sweat Bets, which you can make over your first 10 days. Make a No Sweat Bet each of your first 10 days, and get your stake issued back in. bonus bets when you lose, up to $100.
In New York, sign up for a 300% Profit Boost Token as your state exclusive sign-up bonus. There’s a -500 or longer odds requirement you must meet with each Fanatics Sportsbook sign-up bonus.
- Click the sign-up module below to register in AZ, CO, CT, IL, IN, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, and WV.
- Use the offer module below to register in AZ, CO, CT, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, VT, WV, WY, and Washington D.C..
- Click the offer module below to sign up in NY.
BetMGM
There are three March Madness betting promos to pick from with three different BetMGM bonus code options. Register with the BetMGM bonus code RGNEWGET and win your $10+ first bet to walk away with $150 in bonus bets. Try to find a favorable betting market to make your $10+ first bet on.
Sign up with the BetMGM bonus code RGNEWS1600 for one of the best sportsbook promos of a 20% deposit match, up to $1,600 in sports bonus funds. Receive your sports bonus funds and complete a 10× wagering requirement in the next 30 days to withdraw your winnings.
Finally, sign up with the BetMGM bonus code RGTOP and get a first bet offer, up to $1,500. If your first bet is $50+ and loses, you get five bonus bets back equal to your loss. If your first bet is less than $50 and loses, you get one bonus bet back equal to your loss.
- Click the offer module below to register in CO, MI, NJ, PA, and WV
- Use the sign-up module below to register in AZ, CO, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, WY, and Washington D.C.
- Click with the offer module below to sign up in AZ, IA, IL, IN, LA, KS, KY, MA, MD, NC, OH, TN, VA, WY, and Washington D.C.
Caesars Sportsbook
If you want one of the March Madness betting promos that stands out, look no further than the 10 100% Profit Boost Tokens you unlock when you place a $1+ first bet and sign up with the Caesars Sportsbook promo code RGTOPDYW. Use your 10 Profit Boost Tokens as ways to double your winnings.
Once you unlock your Profit Boost Tokens, use them within 14 days before they expire. Note there’s a $25 max wager and $2,500 max winnings amount on wagers where you apply a Profit Boost Token.
- Use the sign-up module below to register in AZ, CO, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, WY, and Washington D.C.
Use these alternatives to March Madness betting promos to predict the Sweet 16
If you can’t redeem the March Madness betting promos above, there are many legal alternatives at your disposal. Use daily fantasy sports apps or social sportsbooks to make legal March Madness predictions for money today.
Kalshi
Sign up with the Kalshi promo code GRINDERS and work towards unlocking a $10 bonus by making $100 in total trades. Make a trade by purchasing shares on markets, similarly to how you would on the stock market. Make purchases on who you think will advance to the Sweet 16, who will win March Madness, and more.
- Click the offer module below to sign up in all 50 states plus Washington D.C.
Underdog
Play daily fantasy sports and make player pick ‘em entries on Underdog today when you register with the Underdog promo code RGNEWS. Get 50% of your first cash deposit matched in bonus, up to $1,000. Once you get your bonus cash, satisfy a 1x play-through requirement within 14 days so unused bonus cash doesn’t expire.
- Use the sign-up module below to register in IL, IN, KS, VA, WY, DC, AL, AK, AR, CA, GA, ME, MN, MS, NE, NM, NC, ND, OK, OR, RI, SC, SD, TX, UT, VT, and WI.
Rebet Social Sportsbook
Wager on March Madness with Rebet Social Sportsbook when you sign up with the Rebet promo code GRINDERS. You get 100% of your first deposit matched in Rebet Cash. Use Rebet Cash to bet on March Madness betting markets, but win Rebet Cash instead of real cash.
- Click the offer module below to sign up in AL, AK, AZ, AR, CA, CO, CT, DE, FL, GA, HI, IL, IN, IA, KS, KY, ME, MD, MA, MN, MS, MO, NE, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, and WY.
Image Credit: Getty Images