Claim the best March Madness betting promos now to get in on tonight’s college basketball action. With more than $3,500 in bonus value available, these top March Madness betting promos provide new users with bet-and-gets, profit boosts, and deposit match offers, to name a few.
Register for multiple online sportsbooks today and claim these March Madness betting promos to bet on NCAAB games tonight. As long as you are a new sign-up at any given sportsbook, you can claim your welcome bonus now.
Check out the table below for the full list of the best available March Madness betting promos. Register now to get in on the college basketball betting action tonight.
| College Basketball Sportsbooks | March Madness Betting Promos | Sign-Up Link |
| bet365 | Bet $5, Get $150 in Bonus Bets, Win or Lose OR $1,000 First Bet Safety Net | LABSNEWS |
| BetMGM | Up to $1,600 in Deposit Match Bonus OR $1,500 First Bet Offer | LABSNEWS1600 LABSTOP |
| Caesars Sportsbook | 10 100% Profit Boost Tokens | LABSNEWSDYW |
| Fanatics Sportsbook | Bet $30, Get $300 in Bonus Bets OR $1,000 in No Sweat Bets | Click Here |
Sign up with the top March Madness betting promos today
Here is a breakdown of the best March Madness betting promos on the market. Register and claim one or more of the sign-up bonus options available. The more sign-up bonuses you claim, the more value you get.
1. bet365 Sportsbook
- bet365 bonus code: LABSNEWS (for all offers)
- bet365 sign-up offer(s): Bet $5, Get $150 in Bonus Bets Win or Lose or $1,000 First Bet Safety Net
- States available: AZ, CO, IA, IN, KY, LA, NC, NJ, OH, VA
- bet365 PA bonus code: LABSNEWS
- bet365 sign-up offer: Bet $5, Get $150 in Bonus Bets Win or Lose + 50 Casino Spins
Use the bet365 bonus code LABSNEWS grants one of two sign-up bonuses. The March Madness betting promos available to you through this code are a $150 bet-and-get promo or a $1,000 First Bet Safety Net.
Grab $150 in bonus bets from the bet-and-get offer, whether your first bet wins or loses. Make a $5 bet on any March Madness game. You receive $150 in bonus bets from the offer, whether the wager wins or loses. New sign-ups in PA get an improved bet-and-get offer from bet365 bonus code LABSNEWS. This PA-only offer grants 50 casino spins for bet365 Casino slots on top of $150 in bonus bets.
The $1,000 First Bet Safety Net grants a first bet insurance promo for today’s March Madness matchups. First, submit a first bet on any March Madness betting market. With a losing bet, the bet365 sign-up bonus refunds your stake as bonus bets, up to $1,000.
2. BetMGM Sportsbook
- BetMGM bonus code: LABSNEWS1600
- BetMGM sign-up offer: 20% First 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, and WY.
- BetMGM bonus code: LABSTOP
- BetMGM sign-up offer: Get up to $1,500 Back in Bonus Bets if Your First Bet Doesn’t Win
- States available: AZ, CO, DC, IA, IL, IN, LA, KS, KY, MA, MD, MI, NC, NJ, OH, PA, TN, VA, WV, and WY
There are two available March Madness betting promos options accessible via the BetMGM bonus code. Grab a 20% deposit match promo or a $1,500 first bet promo for today’s March Madness slate.
The BetMGM bonus code LABSNEWS1500 unlocks a 20% first deposit match worth up to $1,600 in sports bonus. Deposit $8,000 or more to claim the full $1,600 in sports bonus. The key thing with this BetMGM promo is the 10x playthrough restriction. This requirement means you must wager 10x what you receive in sports bonus before you can withdraw any profit.
Sign up with the BetMGM bonus code LABSTOP to get up to $1,500 in bonus bets with a first bet offer. Register and place your first bet on any March Madness game. If you win, you get your profit and keep your cash stake. A losing bet means you get bonus bets back equivalent to your stake.
3. Caesars Sportsbook
- Caesars Sportsbook promo code: LABSNEWSDYW
- Caesars Sportsbook offer(s): 10 100% Profit Boost Tokens
- Caesars Sportsbook states: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, PA, TN, VA, WV, and WY.
Snag 10 100% Profit Boost Tokens from the Caesars Sportsbook promo code LABSNEWSDYW. Bet $1 on any sporting event, including any March Madness games. You then get 10 100% Profit Boost Tokens instantly. These 100% Profit Boost Tokens work exactly like they sound: they double your winnings on a successful bet.
The most you can wager with a Profit Boost Token is $25. The maximum you can win with a boosted bet is $2,500.
4. Fanatics Sportsbook
- Fanatics Sportsbook promo: Click Here
- Fanatics Sportsbook offer: $1,000 in No Sweat Bets
- States available: AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, VT, WV, WY
- Fanatics Sportsbook promo: Click Here
- Fanatics Sportsbook offer: Bet $30 Get $300 in Bonus Bets
- States available: AZ, MI, NJ, PA
- Fanatics Sportsbook promo: Click Here
- Fanatics Sportsbook offer: Get a 300% Profit Boost Token
- States available: NY
The Fanatics Sportsbook promo grants one of three March Madness betting promos. When you sign up, you get to choose your own promotion. The $1,000 in No Sweat Bets promo is active in all legal Fanatics Sportsbook states except NY. With this promotion, you receive a $100 No Sweat Bet on each of your first 10 days with the Sportsbook.
Refer to the guide below to see which Fanatics Sportsbook promo option(s) is accessible in your state.
| Fanatics Sportsbook Promo | States Available |
| Up to $1,000 in No Sweat Bets (Click Here) | AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, OH, PA, TN, VA, VT, WV, WY |
| Bet $30, Get $300 in Bonus Bets (Click Here) | AZ, MI, NJ, PA |
| Get a 300$ Profit Boost Token (Click Here) | NY |
March Madness betting promos alternative: Sleeper Fantasy
The Sleeper promo code LABSBONUS delivers $55 in free entries for today’s NCAAB slate. Place your first entry with two to eight NCAAB picks from March Madness matchups. With every pick, choose if the player gets “More” or “Less” than the listed number. Every additional pick beyond the second one increases the payout multiplier on the entry.
You get $55 in free entries as 11 $5 playthrough credits. Your first deposit must be at least $25 for you to qualify for $55 in free entries.
Click here to claim $55 in free entries on one of the top DFS sites in AK, AR, CA, CO, DC, FL, GA, KS, KY, MA, MN, NE, NM, NC, ND, OK, OR, RI, SC, SD, TX, UT, VT, WI, and WY.
