Unlock as much as $7,770 in March Madness betting promos today, Sunday, March 29, 2026. The marquee Elite Eight matchups tonight is UConn vs. Duke at 5:05 p.m. ET on CBS.
Tap on any of the modules below to register with March Madness betting promos on the top college basketball betting sites. Redeem first bets on the house, Profit Boost Tokens, and more from the best sportsbooks and betting sites.
March Madness Betting Promos Overview
All the March Madness betting promos available from Action Network are listed out in the table below for you to reference.
| March Madness Sportsbooks | March Madness Betting Promos | Sign-Up Link |
|---|---|---|
| Fanatics Sportsbook | Get Up to $1,000 Matched in FanCash | ACTION |
| BetMGM Sportsbook | $1,500 First Bet Offer | TOPACTION |
| DraftKings Sportsbook | Bet $5, Get $200 in Bonus Bets Instantly | Click Here |
| FanDuel Sportsbook | Get $300 Back in Bonus Bets Every Day For 10 Days | Click Here |
| bet365 Sportsbook | Bet $10, Get $365 in Bonus Bets, Win or Lose | Click Here |
| Hard Rock Bet | 10 100% Profit Boost Tokens | Click Here |
| Caesars Sportsbook | Bet $1, Get Double Your Winnings on Next 10 Wagers | ACTION4DYW |
| theScore Bet | $1,000 First Bet Reset | ACTNEWS |
UConn vs. Duke Betting Odds
Activate thousands in March Madness betting promos to wager on these UConn vs. Duke betting odds tonight from Fanatics Sportsbook:
| UConn Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
+5 -110 | 134 -110o / -110u | +185 |
| Duke Odds | ||
|---|---|---|
| Spread | Total | Moneyline |
-5 -110 | 134 -110o / -110u | -225 |
UConn vs. Duke Prediction
An expert UConn vs. Duke prediction is UConn moneyline (+175). Here is why Action Network sportsbook experts like this pick:
"Connecticut’s experience will definitely be the difference in this contest. Duke has played against many talented opponents over the course of the season, but none can match the level of intensity and determination employed by head coach Dan Hurley. When it comes to prevailing in March, there's no other head coach in the entire country I would rather have than Hurley."
What Are the Best Madness Betting Promos?
Learn what the best March Madness betting promos are below, and sign up today to bet on UConn vs. Duke.
1. Fanatics Sportsbook
Unlock one of the March Madness betting promos available with the Fanatics Sportsbook promo code ACTION today. Pay attention to your Fanatics Sportsbook terms and conditions for minimum odds requirements and other information. Once you unlock FanCash, convert those funds into bonus bets, or use them on licensed apparel and merchandise.
- Fanatics Sportsbook Promo Code ACTION (Bet $5, Get $200 in FanCash Instantly + 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 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 Promo Code ACTION (Bet $5, Get $400 in FanCash)
- Fanatics Sportsbook States Available: NC, TN
- Fanatics Sportsbook NY Promo Code ACTIONNY ($250 No Sweat Bets Over 10 Days)
- Fanatics Sportsbook States Available: New York
- Fanatics Sportsbook NY Promo Code ACTIONNY (Daily 100% Profit Boost Token Over Five Days)
- Fanatics Sportsbook States Available: Illinois & New York
2. BetMGM Sportsbook
Register with the BetMGM bonus code below that corresponds to one of the three available March Madness betting promos. Receive $150 in bonus bets off a winning $10 first bet, get up to $1,500 back in bonus bets if your first bet loses, or get 20% of your first deposit matched.
- BetMGM Bonus Code ACTIONGET (Bet $10, Get $150 in Bonus Bets If You Win)
- BetMGM States Available: MI, NJ, PA, WV
- BetMGM Bonus Code TOPACTION ($1,500 First Bet On the House)
- 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 (20% Deposit Match, Up to $1,500 Sports Bonus Funds)
- BetMGM States Available: AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, MO, NJ, NC, PA, TN, WV, WY
3. DraftKings Sportsbook
Our DraftKings promo code is one of the top March Madness betting promos. Wager a $5+ qualifying first bet (-500 or longer odds) and score $200 in bonus bets off a win. Use a 100% Profit Boost Token unlocked with this bonus on a college basketball champion futures bet. The DraftKings Arkansas promo code is available in The Natural State with a $300 instant bonus bets offer.
- DraftKings Promo Code (Bet $5, Get $200 in Bonus Bets If You Win)
- 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 (Bet $5, Get 300 Instantly in Bonus Bets)
- DraftKings States Available: Arkansas
4. FanDuel Sportsbook
The FanDuel promo code is how you unlock the most value of any of these March Madness betting promos. Receive your first bet's stake back in bonus bets each of the first 10 days from when you register, up to $300 daily. The FanDuel Arkansas promo code gives new signups in The Natural State $300 in bonus bets.
- FanDuel Promo Code (Get $300 Back in Bonus Bets Every Day For 10 Days)
- FanDuel States Available: AZ, CO, CT, DC, IA,, IL, IN, KS, KY, LA, MA, MD, MI, MO, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY
- FanDuel Promo Code (Bet and Get Up to $1,000 in Bonus Bets)
- FanDuel States Available: IN, VA
- FanDuel Arkansas Promo Code (Bet $5, Get $300 Instantly in Bonus Bets)
- FanDuel States Available: Arkansas
5. bet365 Sportsbook
Pick from another grouping of March Madness betting promos by signing up with our bet365 bonus codeTOPACTION. Note that each March Madness sportsbook promo requires -500 odds or longer on your first bet. Additionally, you must tap our links to register with our code and redeem your offer.
- bet365 Bonus Code TOPACTION (Bet $5, 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)
- bet365 States Available: AZ, CO, IA, IL, IN, KS, KY, LA, NC, OH, TN, VA
- bet365 PA Bonus Code TOPACTION (Bet $5, Get $365 in Bonus Bets, Win or Lose+ 50 Casino Spins)
- bet365 States Available: Pennsylvania, New Jersey
- bet365 IL Bonus Code TOPACTION (Bet $10, Get $150 in Bonus Bets, Win or Lose)
- bet365 States Available: Illinois
6. Hard Rock Bet
Michigan and New Jersey bettors have access to one of the top March Madness betting promos with the Hard Rock Bet promo codepromos. Sign up now and instantly pocket 10 chances to double your winnings with 10 100% Profit Boost Tokens.
- Hard Rock Bet Promo Code (10 100% Profit Boost Tokens)
- Hard Rock Bet States Available: Michigan & New Jersey
7. Caesars Sportsbook
Place a $1+ first bet (-500 odds or longer) when you use the Caesars Sportsbook promo code ACTION4DYW to redeem one of the best March Madness betting promos. Just like the Hard Rock Bet promotion above, Caesars Sportsbook provides 10 100% Profit Boost Tokens for you to use to double your winnings.
- Caesars Sportsbook Promo Code ACTION4DYW (Bet $1, Get Double Your Winnings on Next 10 Wagers)
- Caesars Sportsbook States Available: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MO, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, WY
8. theScore Bet
Complete your collection of March Madness betting promos with theScore Bet promo code ACTNEWS from Action Network. Sign up with the promotion below available in your state to wager on college basketball tonight.
- theScore Bet Promo Code ACTNEWS ($1,000 First Bet Reset)
- theScore Bet States Available: AZ, CO, IA, IL, IN, KS, KY, LA, MA, MD, MO, NC, OH, TN, VA
- theScore Bet Promo Code ACTNEWS (Bet $10, Get $100 in Bonus Bets If You Win)
- theScore Bet States Available: MI, NJ, PA, WV
Alternatives to March Madness Betting Promos
Not all states get access to the March Madness betting promos above. If this is your case, give Underdog, Polymarket, and Kalshi a shot to make your NCAA Tournament prediction with.
1. Underdog (DFS)
Sign up with the Underdog promo code TOPACTION and submit a $5+ lineup of March Madness DFS picks to pocket $50 fantasy bonus entries.
- Underdog Promo Code TOPACTION ($50 Fantasy Bonus Entries)
- 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 Polymarket
Register with the Polymarket promo code ACTION and skip the waitlist of people waiting to play. Make an account and deposit $20 on this prediction market app to score $20.
- Polymarket Promo Code ACTION (Deposit $20, Get $20 Bonus to Skip the Waitlist)
- 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
3. Kalshi
Register with the Kalshi promo code ACTION and trade $10 on any March Madness prediction market to activate $10 in bonus cash now.
- Kalshi Promo Code ACTION (Trade $10, Get 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
