Take advantage of top March Madness betting promos to claim a welcome bonus for any college basketball game. Today is the final day of the regular season, featuring a marquee matchup: Michigan vs. Michigan State.
Explore the best March Madness betting promos to unlock thousands in sign-up offers. Use your welcome bonus to place a bet on today's games or hold onto it for the conference tournaments. In some cases, you can use bonus bets for March Madness.
Stay informed with the latest NCAAB odds for all college basketball matchups. Use these insights and the March Madness betting promos to access over $4,500 in bonus value.
| Best NCAAB Sportsbooks | March Madness Betting Promos | Sign-Up Link |
|---|---|---|
| bet365 | $1,000 First Bet Safety Net or $150 Bet-and-Get Promo | TOPACTION |
| BetMGM | 20% First Deposit Match, Up to $1,500 | TOPTAN1500 |
| Caesars Sportsbook | Bet $1, Get 10 100% Profit Boost Tokens | ACTION4DYW |
| Fanatics Sportsbook | $300 Bet-and-Get Promo or $1,000 in No Sweat Bets | Activate Now |
| Fliff Social Sportsbook | Spend $50, Get $100 in Fliff Coins | ACTION |
College Basketball March Madness Betting Promos: Claim Over $4,500 in Bonus Value
1. bet365
- bet365 Bonus Code: TOPACTION
- bet365 Promo: $1,000 First Bet Safety Net or Bet $5, Get $150 in Bonus Bets Win or Lose
- bet365 PA Promo: Bet $5, Get $150 in Bonus Bets + 50 Casino Spins Win or Lose
- bet365 States Available: AZ, CO, IA, IN, KY, LA, NC, NJ, OH, PA, VA
Check out the best March Madness betting promos at bet365, where you can take advantage of a $1,000 First Bet Safety Net or a $150 bet-and-get offer. Use the bet365 bonus code TOPACTION, which requires your first bet to come on a market with -500 odds or longer.
Sign up now and choose the First Bet Safety Net promo to wager on any game. If your bet doesn’t pan out, bet365 covers you with up to $1,000 in bonus bets. For instance, a $1,000 first bet on the Michigan moneyline (+270) yields a $3,700 payout if successful, or $1,000 in bonus bets if not.
Opt for the bet-and-get promo: place a $5 first bet to unlock $150 in bonus bets win or lose. This welcome bonus is available in all legal bet365 states, including Pennsylvania, which sweetens the offer with an additional 50 casino spins.
2. BetMGM
- BetMGM Bonus Code: TOPTAN1500
- BetMGM Promo: 20% First Deposit Match, Up to $1,500 in Sports Bonus
- BetMGM Bonus Code: TOPACTION
- BetMGM Promo: $1,500 First Bet Offer
- BetMGM States Available: AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, WY
Sign up today with the BetMGM bonus code to unlock $1,500 in bonus value. Discover top March Madness betting promos at BetMGM, featuring a 20% first deposit match or a $1,500 first bet offer.
Use the BetMGM bonus code TOPTAN1500 and make your first deposit. BetMGM matches 20% of your deposit in sports bonus funds, up to $1,500, requiring a deposit of $7,500 for the full bonus. Access this BetMGM promo in AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, and WY.
The BetMGM bonus code TOPACTION offers one of the best college basketball March Madness betting promos. It features a $1,500 first bet offer, so if your initial wager loses, you get it back in bonus bets, up to $1,500. BetMGM splits the bonus into five equal bet credits. Use this sign-up bonus in the following states: AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, and WY.
3. Caesars Sportsbook
- Caesars Sportsbook Promo Code: ACTION4DYW
- Caesars Sportsbook Welcome Bonus: Bet $1, Get 10 100% Profit Boost Tokens
- Caesars Sportsbook States Available: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, WY
Use one of the best March Madness betting promos to claim 100% Profit Boost Tokens. With the Caesars Sportsbook promo code ACTION4DYW, it only takes a $1 first bet to unlock 10 100% Profit Boost Tokens instantly.
These tokens double your profit on any winning bet. Wager up to $25 with each token, but remember to use them within 14 days.
Claim this welcome bonus in the following states: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, and WY.
4. Fanatics Sportsbook
- Fanatics Sportsbook Promo: Activate Now
- Fanatics Sportsbook Bet-and-Get Promo: Bet $30, Get $300 in Bonus Bets
- Fanatics Sportsbook Sign-Up Bonus: $1,000 in No Sweat Bets
- Fanatics Sportsbook AZ Sign-Up Bonus: $2,000 No Sweat First Bet
- Fanatics Sportsbook NY Sign-Up Bonus: 300% Profit Boost Token
- Fanatics Sportsbook States Available: AZ, CO, CT, DC, IA, IN, KS, KY, LA, MA, MD, MI, NJ, OH, PA, TN, VA, VT, WV, WY
The Fanatics Sportsbook promo offers four March Madness betting promos, allowing you to choose your own offer. Bettors in Arizona, Michigan, New Jersey, and Pennsylvania can access a $300 bet-and-get promo. To qualify, place a $10 bet daily for three consecutive days to unlock $300 in bonus bets.
The most widely available sign-up bonus provides $1,000 in No Sweat Bets. Fanatics Sportsbook splits the $1,000 bonus into 10 days, offering a daily No Sweat Bet, up to $100. If your No Sweat Bet doesn't win, you get your stake back in bonus bets, up to $100. Use this welcome offer in AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, VT, WV, and WY.
The top March Madness college basketball betting promos feature an exclusive offer for bettors in Arizona and New York. The Fanatics Sportsbook AZ promo provides a $2,000 No Sweat First Bet. If your first wager loses, you get your money back in bonus bets up to $2,000. Use the Fanatics Sportsbook NY promo to unlock a 300% Profit Boost Token.
Best Alternative Options to March Madness College Basketball Betting Promos
1. Underdog Fantasy (DFS)
- Underdog Fantasy Promo Code: TOPACTION
- Underdog Fantasy Sign-Up Offer: 50% Deposit Match, Up to $1,000 in Bonus Funds
- Underdog Fantasy States Available: AL, AK, AZ, AR, CA, DC, DE, GA, IL, KS, KY, MA, MN, MO, NE, NM, NC, ND, OK, OR, RI, SC, SD, TN, TX, UT, VT, VA, WI, WV, WY
If your state doesn't offer the best college basketball March Madness betting promos, check out Underdog Fantasy. Sign up today and use the Underdog Fantasy promo code TOPACTION to claim a 50% deposit match, up to $1,000 in bonus funds. Set your lineup using players from any NCAAB game.
2. Fliff Social Sportsbook
- Fliff Promo Code: ACTION
- Fliff Welcome Bonus: Spend $50, Get $100 in Fliff Coins
- Fliff States Available: AK, AZ, AR, CA, CO, CT, DC, DE, FL, IL, IN, IA, KS, KY, ME, MD, MA, MI, MO, MT, NE, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SD, TX, UT, VT, VA, WV, WI
Use the Fliff promo code ACTION to unlock $100 in Fliff Coins. Fliff is a social sportsbook, so it is one of the top alternatives to March Madness college basketball betting promos. Use the Fliff Coins to make picks on any NCAAB game.