Top March Madness Betting Promos: Cash $3,700+ in Total Bonus Value for Games Tonight, Texas vs. Tennessee, UNC vs. Duke

Claim the best March Madness betting promos to get $3,700+ in bonus value from the best sports betting sites on college basketball tonight. There are various conference tournament matchups featuring the best teams from the SEC and Big Ten, two of the best conferences in college basketball this season.

If you’re new to online sports betting, read the list below and sign up now to get thousands in bonus bets today. Find the best March Madness betting promos from top sportsbooks such as bet365, BetMGM, and Caesars Sportsbook to bet on any game tonight.

Here are the top March Madness betting promos, with $3,700+ in total bonus value:

• bet365 bonus code SHNEWS: $1,000 First Bet Safety Net
• BetMGM bonus code SHNEWS1600: 20% deposit match, up to $1,600 in sports bonus
• Caesars Sportsbook promo code HANDLENEWSBG1: Bet $1, Get $150 in Bonus Bets If You Win
• Fanatics Sportsbook promo: Click here to get up to $1,000 in No Sweat Bets or use this link for the Bet $30, Get $300 in Bonus Bets offer

Sign up now with the best March Madness betting promos and bet on any college basketball games tonight.

Best NCAAB betting promos tonight

Register for one welcome offer from each sportsbook on our list of March Madness betting promos for more than $3,700 in total sportsbook bonus value:

1. bet365 bonus code SHNEWS

Choose between March Madness betting promos with the bet365 bonus code SHNEWS. You decide between the following bet365 sign-up bonus offers in 10 legal sports betting states — AZ, CO, IA, IN, KY, LA, NC, NJ, OH, and VA.

• bet365 bonus code SHNEWS: $1,000 First Bet Safety Net
• bet365 bonus code SHNEWS: Bet $5, Get $150 in Bonus Bets Win or Lose

In Pennsylvania, use the bet365 PA bonus code SHNEWS and get a $150 bet-and-get promo with an added bonus. Place a $5 first bet on -500 odds or longer to get $150 in bonus bets plus 50 spins to bet365 Casino, win or lose.

2. BetMGM bonus code

There are two BetMGM bonus code offers on our list of March Madness betting promos. The offers available depend on where you register.

• BetMGM bonus code SHNEWS1600: 20% deposit match, up to $1,600 in sports bonus
  • States Available: AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, WY
• BetMGM bonus code HANDLETOP: Get up to $1,500 back in bonus bets if your first bet doesn’t win
  • States Available: IL, IN, IA, LA, KS, KY, OH, TN, WY

3. Caesars Sportsbook promo code

Similarly, there are two Caesars Sportsbook promo code offers among the March Madness betting promos list, depending on where you sign up. In many of the sports betting locations, you choose between the following sign-up offers:

• Caesars Sportsbook promo code HANDLENEWSBG1: Bet $1, get $150 in Bonus Bets If You Win
  • States Available: AZ, CO, DC, IA, IL, KY, LA, MD, ME, NY, OH, TN, VA, WY
• Caesars Sportsbook promo code HANDLENEWSDYW: Bet $1, Get 10 100% Profit Boost Tokens
  • 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

4. Fanatics Sportsbook promo

The Fanatics Sportsbook promo that you get as part of the best March Madness betting promos depends on your sports betting location. As a new user, you get to choose your Fanatics Sportsbook promo sign-up offer, including three promo options in Arizona. Check out the list below to see which welcome bonus is available in your state:

• Bet $30, Get $300 in Bonus Bets: Click Here
  • States Available: AZ, MI, NJ, PA
• $1,000 in No Sweat Bets: Use this link
  • States Available: AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, VT, WV, WY
• Sign up for 300% Profit Boost Token: Click this link

Alternate March Madness offer: Underdog Fantasy promo code HANDLE

Register now with the Underdog Fantasy promo code HANDLE for a 50% deposit match, up to $1,000 in bonus cash. Underdog Fantasy, one of the best DFS sites on the market, is available in AL, AK, AR, CA, DC, GA, IL, IN, KS, ME, MN, MS, NE, NM, NC, ND, NY, OK, OR, RI, SC, SD, TX, UT, VA, VT, WI, and WY. Use bonus cash from your first deposit and make an entry on any college basketball games tonight.