Best Sportsbook Promos for March Madness: $7,000 in Sign-Up Offers for Sweet 16

March Madness continues with the Sweet 16 on Thursday, March 26 and Friday, March 27. Right now, you can sign up early and take advantage of more than $7,000 in sportsbook promos for March Madness.

These March Madness betting promos give you a large amount of bonus value when you bet on the final games of the college basketball season. Get more than $7,000 in total bonus value from the best sports betting sites on the market, including Fanatics Sportsbook, BetMGM, DraftKings, FanDuel, bet365, Hard Rock Bet, Caesars Sportsbook, and theScore Bet.

Click the sign-up modules below to register for the latest sportsbook promos for March Madness before the Sweet 16 tips off, starting with Texas vs. Purdue at 7:10 p.m. ET on CBS on Thursday, March 26, 2026.

Latest Sportsbook Promos for March Madness and Sweet 16

NCAAB Sportsbooks	Promo Code
Fanatics Sportsbook – Get up to $1,000 Matched in FanCash	LABSBONUS
BetMGM – 20% Deposit Match, up to $1,500 in Sports Bonus	LABSNEWS1500
DraftKings – Bet $5, Get $200 in Bonus Bets Instantly + 100% Profit Boost Token for NCAA Tournament	Click Here
FanDuel – Get up to $3,000 Back in Bonus	Click Here
bet365 – $365 Bet-and-Get or $1,000 First Bet Safety Net	Click this link
Hard Rock Bet Promo Code – Get 10 x 100% Profit Boost Tokens	Click Here
Caesars Sportsbook – Bet $1, Double Your Winnings on Your Next 10 Wagers	LABSNEWSDYW
theScore Bet Promo Code – $1,000 First Bet Reset	LABSNEWS

Newest March Madness Betting Promos for Sweet 16 This Week

Claim one sign-up offer from each sportsbook below for more than $7,000 in March Madness betting promos to use on any Sweet 16 game, starting with Texas vs. Purdue on Thursday at 7:10 p.m. ET on CBS.

Fanatics Sportsbook Promo Code LABSBONUS is Best Sportsbook Promo for March Madness This Week

Choose from five sportsbook promos for March Madness (depending on your location) with the Fanatics Sportsbook promo code LABSBONUS. The most popular promo is the $200 bet-and-get offer. Wager $5 and get $200 in FanCash instantly. The FanCash can be converted to bonus bets or use on official, licensed merchandise. Sign up here and get $200 in FanCash in AZ, CO, CT, DC, IA, IN, KS, KY, LA, MA, MD, MI, MO, NJ, OH, PA, VA, VT, WV, or WY.

Best BetMGM Bonus Code for Sweet 16

The highest value sportsbook promo for March Madness from BetMGM Sportsbook is with the BetMGM bonus code LABSNEWS1500. This is a 20% match on your first deposit, up to $1,500 in sports bonus. Use your sports bonus to wager on your favorite events, including the Sweet 16 this week.

DraftKings Promo Code for College Basketball Betting

Unlock one of the best college basketball betting promos this week by using the DraftKings promo code. Place a $5 first bet. You receive $200 in bonus bets instantly plus a 100% Profit Boost Token for the NCAA Tournament.

How to get $3,000 Sportsbook Promo for March Madness with FanDuel Sportsbook

Don’t miss your chance to take advantage of one of the best sportsbook promos for March Madness with this link. Use the brand new, updated FanDuel promo code to bet the Sweet 16 and other NCAAB odds. Each day, get up to $300 in bonus bets if your bet loses, for 10 days.

In Indiana and Virginia, you can bet and get up to $1,000 in bonus bets with the sign-up module below.

Click Below to Get bet365 Bonus Code Promo for Sweet 16 This Week

The bet365 bonus code unlocks up to $1,000 in bonus value when you claim the best sportsbook promos for March Madness today. Choose between a $365 bet-and-get promo or $1,000 First Bet Safety Net in AZ, CO, IA, IN, KS, KY, LA, NC, OH, TN, or VA. In PA and NJ, you get a $365 bonus plus extra casino perks. Finally, in IL, you get a $150 bet-and-get promo.

Get Profit Boost Tokens for Sweet 16 with Hard Rock Bet

The Hard Rock Bet promo code provides an essential sportsbook promo for March Madness for NJ and MI players. Sign up now and get 10 100% Profit Boost Tokens to double your winnings when you place a $50 or less wager. This is an exclusive offer for NJ and MI bettors.

Claim Caesars Sportsbook Promo Code for 10 Profit Boost Tokens

Use the Caesars Sportsbook promo code LABSNEWSDYW to claim the best sportsbook promos for March Madness from Caesars Sportsbook. Sign up with this link, place a $1 first bet, and you receive 10 x 100% Profit Boost Tokens to double your winnings on your next 10 wagers of $25 or less.

Use theScore Bet Promo Code LABSNEWS to Wager on March Madness

Finally, theScore Bet promo code LABSNEWS unlocks an additional $1,000 on our list of sportsbook promos for March Madness. Place a first bet and get up to $1,000 in bonus funds, if your first wager loses.

Kalshi Promo Code LABS Provides $10 College Basketball Bonus

An exceptional alternative to the best March Madness betting promos on this list is the Kalshi promo code LABS. Create a new Kalshi account and make a $10 first trade for a $10 bonus to use on different college basketball markets.

Use Underdog Promo Code LABSNEWS as Alternative to March Madness Betting Promos

If you are not in a sports betting state or looking to stack a bonus on top of the best March Madness betting promos, use Underdog promo code LABSNEWS. Place a $5 first fantasy entry on any Sweet 16 predictions and unlock $50 in fantasy bonus entries.