March Madness Betting Promos for Sweet 16: Claim $7,000 in Bonus Value on Friday, March 27

March Madness heats up Friday, March 27, as the Sweet 16 features must-watch college basketball matchups: St. John's vs. Duke, Alabama vs. Michigan, Michigan State vs. UConn, and Tennessee vs. Iowa State. Fans will catch every fast break and buzzer-beater live.

Top sportsbooks launch March Madness betting promos for Sweet 16 action. Claim as many offers as you can to unlock $7,000 in bonus value this Friday.

Whether you’re following CBB sportsbooks or tracking your bracket, every game delivers high stakes and bracket-busting excitement. Bet, watch, and ride the March Madness hype straight through the Sweet 16.

Sweet 16 Odds + Schedule on Friday, March 27

The NCAA tournament is heating up as the Sweet 16 concludes this Friday, March 27. Check out the latest NCAAB odds and game times for all four matchups.

• St. John's (+230) vs. Duke (-285): 7:10 p.m. ET on CBS
• Alabama (+370) vs. Michigan (-485): 7:30 p.m. ET on TBS/truTV
• Michigan State (+110) vs. UConn (-130): 9:45 p.m. ET on CBS
• Tennessee (+155) vs. Iowa State (-185): 10:10 p.m. ET on TBS/truTV

Best March Madness Betting Promos: Claim Top Sign-Up Bonus Offers for Sweet 16

Get ready for the Sweet 16 with the Action Network, your go-to hub for smart betting insights, the odds calculator to compare lines, and the parlay calculator to maximize your potential winnings. Check out the top March Madness betting promos this season and score big as the tournament heats up.

1. Fanatics Sportsbook

Fanatics Sportsbook is offering top March Madness betting promos for 2026. Use the Fanatics Sportsbook promo code ACTION to unlock bonus bets, Profit Boost Tokens, and more this March Madness season.

• Fanatics Sportsbook Promo Code ACTION ($200 Instantly + Profit Boost Tokens): Make a $5 first bet on the Sweet 16, and get $200 instantly in bonus bets plus Profit Boost Tokens.
  • Fanatics Sportsbook States Available: AZ, CO, CT, DC, IA, IN, KS, KY, LA, MA, MD, MI, MO, NJ, OH, PA, VA, VT, WV, WY

• Fanatics Sportsbook Promo Code ACTION ($1,000 Bet Match): Over 10 days, Fanatics Sportsbook matches your daily wager, up to $100, in FanCash, win or lose.
  • Fanatics Sportsbook States Available: AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, MO, NC, NJ, OH, PA, TN, VA, VT, WV, WY

• Fanatics Sportsbook NY Promo Code ACTIONNY (Daily 100% Profit Boost Tokens): Score a daily 100% Profit Boost Token for five straight days in Illinois and New York.
  • Fanatics Sportsbook States Available: Illinois & New York

• Fanatics Sportsbook NY Promo Code ACTIONNY ($250 No Sweat Bets): Claim a daily No Sweat Bet, up to $25, for 10 consecutive days in New York.
  • Fanatics Sportsbook States Available: New York

• Fanatics Sportsbook Promo Code ACTION ($400 Bet-and-Get Promo): Bet $5 daily for four straight days, and you get $100 in FanCash per day, totaling $400 after four days.
  • Fanatics Sportsbook States Available: North Carolina & Tennessee

2. BetMGM

March Madness is here, and the BetMGM bonus code is part of some of the best March Madness betting promos for college basketball fans.

• BetMGM Bonus Code ACTIONGET ($150 Bet-and-Get Promo): Win your $10 first bet on college basketball to unlock $150 in bonus bets.
  • BetMGM States Available: MI, NJ, PA, WV

• BetMGM Bonus Code TOPACTION ($1,500 First Bet Offer): Bet on any CBB game tonight, and get your stake back in bonus bets, up to $1,500, if you lose.
  • BetMGM States Available: AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, WY

• BetMGM Bonus Code TOPTAN1500 ($1,500 Deposit Match): BetMGM matches 20% of your deposit in sports bonus funds, up to $1,500. Make sure you deposit $7,500 or more to unlock the maximum $1,500 bonus amount.
  • BetMGM States Available: AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, MO, NJ, NC, PA, TN, WV, WY

3. DraftKings Sportsbook

Get ready for the NCAA Tournament with the latest DraftKings promo code, giving bettors a head start on CBB action. Take advantage of these March Madness betting promos to boost your bets and maximize your winnings this March.

• DraftKings Promo Code ($200 Bet-and-Get Promo + 100% NCAA Profit Boost Token): Make a $5 first bet to unlock $200 instantly in bonus bets plus a 100% NCAA Tournament Profit
  • DraftKings States Available: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, MO, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY

• DraftKings Arkansas Promo Code ($300 Instant Bonus Bets): Arkansas bettors only need to wager $5 to instantly unlock $300 in bonus bets.
  • DraftKings States Available: Arkansas

4. FanDuel Sportsbook

FanDuel rolls out some of the most exciting March Madness betting promos, giving fans multiple ways to boost their brackets and wagers. Use the FanDuel promo code to unlock bonus bets and take advantage of daily No Sweat Bets across several states.

• FanDuel Promo Code ($3,000 Bonus Bets): Claim a daily No Sweat Bet, up to $300, for 10 straight days.
  • FanDuel States Available: AZ, CO, CT, DC, IL, IA, KS, KY, LA, MA, MD, MI, MO, NC, NJ, NY, OH, PA, TN, VT, WV, WY

• FanDuel Arkansas Promo Code ($300 Bet-and-Get Promo): Arkansas users only need to bet $5 to unlock $300 in bonus bets, win or lose.
  • FanDuel States Available: Arkansas

• FanDuel Promo Code ($1,000 Bet-and-Get Bonus): Score a daily No Sweat Bet, up to $100, for 10 consecutive days in Indiana and Virginia.
  • FanDuel States Available: Indiana & Virginia

5. bet365

Score big this March Madness with bet365, offering exclusive Sweet 16 betting action for college hoops fans. Use the bet365 bonus code to unlock March Madness betting promos and maximize your chances during the tournament’s biggest matchups.

• bet365 Bonus Code TOPACTION ($365 Bet-and-Get Promo): Bet $10 on the Sweet 16, and get $365 in bonus bets, win or lose.
  • bet365 States Available: AZ, CO, IA, IL, IN, KS, KY, LA, MD, MO, NC, NJ, OH, PA, TN, VA

• bet365 Bonus Code TOPACTION ($1,000 First Bet Safety Net): Wager on any CBB game today, and get your stake back in bonus bets, up to $1,000, if you lose.
  • bet365 States Available: AZ, CO, IA, IL, IN, KS, KY, LA, NC, OH, TN, VA

• bet365 Bonus Code TOPACTION ($365 Bet-and-Get Promo + 50 Casino Spins): Claim the $365 welcome bonus in New Jersey and Pennsylvania, plus an exclusive perk of 50 casino spins.
  • bet365 States Available: New Jersey & Pennsylvania

• bet365 IL Bonus Code TOPACTION ($150 Bet-and-Get Promo): Illinois users only need to make a $10 wager to unlock $150 in bonus bets.
  • bet365 States Available: Illinois

6. Hard Rock Bet

Get ready for big wins this season with the latest Hard Rock Bet promo code, designed to give bettors an extra edge. From bracket busters to buzzer-beaters, explore all the March Madness betting promos that can maximize your profit on every game.

• Hard Rock Bet Promo Code (10 100% Profit Boost Tokens): Get 10 100% Profit Boost Tokens, allowing you to earn double the profit on a winning bet.
  • Hard Rock Bet States Available: Michigan & New Jersey

7. Caesars Sportsbook

Get ready for March Madness with top betting opportunities at Caesars Sportsbook. Use the Caesars Sportsbook promo code ACTION4DYW to access March Madness betting promos and boost your Sweet 16 action.

• Caesars Sportsbook Promo Code ACTION4DYW (10 100% Profit Boost Tokens): Make a $1+ first bet to unlock 10 100% Profit Boost Tokens for March Madness Sweet 16 games.
  • Caesars Sportsbook States Available: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MO, MD, ME, MI, NC, NJ, NY, OH, PA, TN, VA, WV, WY

8. theScore Bet

Take advantage of March Madness betting promos with theScore Bet and elevate your NCAAB experience this tournament. Use theScore Bet promo code ACTNEWS to access special bonus bets and maximize your wagers today.

• theScore Bet Promo Code ACTNEWS ($1,000 First Bet Reset): Bet on NCAAB games today and get up to $1,000 in bonus bets if your first bet loses.
  • theScore Bet States Available: AZ, CO, IA, IL, IN, KS, KY, LA, MA, MD, MO, NC, OH, TN, VA

• theScore Bet Promo Code ACTNEWS ($100 Bet-and-Get Promo): Make a $10 wager and unlock $100 in bonus bets if you win.
  • theScore Bet States Available: MI, NJ, PA, WV

How to Make Picks on Sweet 16 Games Without March Madness Betting Promos

If you’re looking to make Sweet 16 picks but don’t want to chase traditional March Madness betting promos, there are alternative platforms that offer unique ways to play. From daily fantasy contests to prediction markets, these options give you extra bonuses and entry incentives to get started.

1. Underdog (DFS)

Get started with college basketball DFS using the latest Underdog promo code TOPACTION for a quick boost to your fantasy bankroll. Here’s how to claim your bonus and where Underdog is available.

• Underdog Promo Code TOPACTION ($50 Fantasy Bonus Entries): Play $5 with CBB DFS picks, and get $50 in fantasy bonus entries, win or lose.
  • Underdog States Available: AL, AK, AR, CA, DC, FL, GA, IL, IN, KS, ME, MS, MN, NE, NM, NC, ND, OK, OR, RI, SC, SD, TX, VT, VA, UT, WI, WY

2. Kalshi Prediction Market

Kalshi offers a unique way to trade on real-world events, and you can get started with the Kalshi promo code ACTION for an extra boost. With just $10 in trades, you can unlock a $10 bonus to kick off your prediction market experience.

• Kalshi Promo Code ACTION ($10 Bonus): Make $10 in trades to unlock a $10 bonus.
  • Kalshi States Available: AL, AK, AR, CA, CO, CT, DE, FL, GA, HI, ID, IN, IA, KS, KY, LA, ME, MN, MS, MO, NE, NH, NM, NY, NC, NV, ND, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY, DC

3. Polymarket

Polymarket makes it easy to jump into prediction markets, and you can use the Polymarket promo code ACTION to get started with a $20 bonus. Whether you're tracking elections, sports, or current events, this code lets you skip the waitlist and start predicting today.

• Polymarket Promo Code ACTION ($20 Bonus): Use our code to skip the waitlist and score a $20 bonus today.
  • Polymarket States Available: AL, AK, AR, CA, CO, CT, DE, FL, GA, HI, ID, IN, IA, KS, KY, LA, ME, MN, MS, MO, NE, NH, NM, NY, NC, ND, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY, DC