How to Bet on March Madness Without DraftKings and FanDuel
I have you covered if you need to know how to bet on March Madness Final Four without DraftKings and FanDuel Sportsbook tonight. The Final Four in the NCAA Tournament tips off tonight with Illinois vs. UConn (6:09 p.m. ET on TBS) and Michigan vs. Arizona (8:49 p.m. ET on TBS). As part of focusing on how to bet March Madness Final Four without DraftKings and FanDuel, I have alternatives to sports betting apps as a whole for you to utilize today, Saturday, April 4, 2026.
There are plenty of alternatives available when you combine a large number of established DFS apps and rising number of prediction market apps across the country. Tap any of the sign-up links in this article to register with the best ways how to bet on March Madness Final Four without DraftKings or FanDuel.
How to Bet on March Madness Final Four Without DraftKings and FanDuel Today
I give you all the ways how to bet on March Madness Final Four without DraftKings, FanDuel, and online sportsbooks in general throughout this piece. Sign up via any of the links or modules below to claim bonuses and make predictions on Illinois vs. UConn, and Michigan vs. Arizona today.
Underdog
Underdog leads off this list of online sports betting alternatives to sign up with. Sign up with the Underdog promo code RGNEWS now, submit a $5 lineup of March Madness DFS picks, and unlock $50 in fantasy bonus entries.
- Tap the link below to sign up in 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, and WY
Polymarket
Skip the waitlist by signing up with the Polymarket promo code GRINDERS now. Polymarket is one of the best prediction market apps in the country, but remains in beta testing. Our code lets you bypass the line and unlocks $20 in bonuses once you make a $20 deposit into your account.
- Use the offer module below to register in Polymarket everywhere besides AZ, IL, MA, MD, MI, MT, NJ, NV and OH.
Kalshi
Kalshi is another one of the top prediction market apps in the country to register at. Sign up with Kalshi using the RotoGrinders Kalshi promo code GRINDERS today. Find a March Madness prediction market to trade on, put $10 on your prediction, and get $10 in bonus cash.
- Hit the welcome module below to sign up on Kalshi in all states except for AZ, IL, MA, MD, MI, MT, NJ, NV and OH.
DK Pick 6
Our RotoGrinders DraftKings Pick 6 promo code is another one of the top college basketball DFS promos up for grabs. Sign up now to get a 100% winnings boost, and $25 in bonus picks. Secure your $25 worth of bonus picks when you place a $5 lineup of NCAA Tournament DFS picks.
- Use the link below to sign up at DK Pick 6 in AL, AR, CA, DE, GA, MN, MO, ND, NE, SC, SD, TX, UT, and WI.
Sleeper
Another one of the DFS apps to use as an alternative to DraftKings or FanDuel is Sleeper Fantasy. Activate $120 in bonus cash through a 100$ deposit match, up to $100, along with a $20 no-deposit bonus. Claim these rewards thanks to the Sleeper Fantasy promo code ROTOMAX.
- Sign up via the link below now in AK, AR, CA, CO, FL, GA, KS, KY, MA, MN, NE, NM, NC, ND, OK, OR, RI, SC, SD, TX, UT, VT, WI, WY, and Washington D.C.
Fliff Social Sportsbook
Look no further for a social sportsbook promo than the RotoGrinders Fliff promo code GRINDERS. Register now and get your first cash deposit matched at a 100% rate, up to $100. Place a $5 lineup of March Madness Final Four predictions to get another $50 bonus credit.
- Register for your account through the link below in AK, AZ, AR, CA, CO, CT, 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, and Washington D.C.
Dabble
Sign up next with the Dabble promo code GRINDERS for an online sports betting alternative. Sign up for an account now and pocket a $10 no-deposit bonus. Use your $10 bonus on Final Four DFS picks today.
- Claim a $10 no-deposit bonus through the sign-up link below in AK, AR, CA, FL, GA, IL, IN, KS, KY, MA, MN, NE, NM, NC, ND, OK, OR, RI, SC, SD, TN, TX, UT, VA, WI, WV, WY, and DC.
Novig
Novig is the last way to make March Madness picks without DraftKings, FanDuel, or one of the best sports betting apps. Tap this link to create an account the verified Novig promo code GRINDERS. Once you sign up, trade $5 on Illinois vs. UConn or Michigan vs. Arizona to pocket $50 in Novig Coins.
- Sign up at Novig by tapping the offer module below in AK, AR, CA, FL, GA, HI, IL, IN, IA, KS, KY, ME, MA, MN, MO, NE, NH, NC, ND, OH, OK, OR, SC, SD, TX, VT, VA, DC, WI, and WY.
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