It’s hard to believe, but the 2026 NCAA Tournament is already about to wrap up tonight! Courtesy of Saturday’s Final Four action, we’ve got UConn vs. Michigan tonight, which is why we’re here to hook you up with the best National Championship promotions! That means sportsbooks, fantasy sports and more with ways to claim GUARANTEED bonuses!

We’ll take you through the details of each of the best National Championship promotions below, and most importantly, how to snag each one ahead of tip-off.

🔥 The Best March Madness Promo Codes To Activate Today

We also know that some fans out there may already be cutting it close to that tip-off. So, we’ve also provided you with a way to grab each of the best National Championship promotions ASAP, which is by using the links in the summarized outline below:

🏅 Best March Madness Promo Codes: BetMGM Sportsbook

Tipping things off is none other than one of the most well-respected brands both online and for in-person resorts. That would be BetMGM, and with that reputation, they’ve got a welcome offer that is easily one of the best National Championship promotions:

  1. Click here 👈🏼 for a new BetMGM account
  2. Enter one of the best National Championship promotion codes: ALARM
  3. Wager $10+ and up to $1,500 on anything
  4. Receive your winnings or a full refund in bonus bets!

In other words, you get your place that initial wager stress-free since you’ll receive something from it GUARANTEED! Just be sure that our exclusive BetMGM promo code ALARM is filled in when ✍🏼 becoming a new member ✍🏼 to unlock one of the best National Championship promotions.
 

 

 

🏅 Best March Madness Promo Codes: Chalkboard Fantasy

Now we’re going to swap to a fantasy platform that is just as remarkable. Chalkboard’s current welcome offer is a two-part that is also GUARANTEED, so it qualifies as one of the best National Championship promotions:

  1. Click here 👈🏼 to create a new Chalkboard account
  2. Enter one of the best National Championship promotion codes: ALARM
  3. Make a first-time deposit of $10+ and up to $100
  4. Receive 100% of the value in bonus funds AND a free player pick for your first lineup!

As if the above wasn’t amazing enough, Chalkboard also has DAILY free picks! Today is Nikola Jokic at 0.5 points, so pair that with one of the best National Championship promotions when you sign up today ☀️ with our exclusive Chalkboard promo code ALARM!
 

 

 

🏅 Best March Madness Promo Codes: ParlayPlay Fantasy

Let’s keep two-parters rolling by checking out another fantasy platform. That would be ParlayPlay, and with the first part being totally FREE, it’s certainly one of the best National Championship promotions:

  1. Click here 👈🏼 for a new ParlayPlay account
  2. Enter one of the best National Championship promotion codes: ALARM
    1. Receive a FREE $5 bonus - no deposit required!
  3. Make a first-time deposit of $10+ and up to $100
  4. Receive 100% of the value in more bonus funds!

That all adds up to $105 worth of lineups that you can submit on the house! It’s all part of another one of the best National Championship promotions when you 🔗 use this link 🔗 to activate our exclusive ParlayPlay promo code ALARM!
 

 

 

🏅 Best March Madness Promo Codes: Caesars Sportsbook

Let’s swap back to traditional sportsbooks with a brand that is similar to BetMGM in terms of being known for both their in-person resorts and online presence. With Caesars, you get to claim one of the best National Championship promotions, as it has 20 guaranteed rewards:

  1. Click here 👈🏼 for a new Caesars account
  2. Enter one of the best National Championship promotion codes: ALARM20X
  3. Make a first-time deposit of $10+
  4. Wager $1+ on any betting market
  5. Receive TWENTY 100% profit boost tokens GUARANTEED!

That’s right - EACH token will DOUBLE your potential winnings! So, you can go well beyond just March Madness with one of the best National Championship promotions once you 🎯 register here 🎯 with our exclusive Caesars promo code ALARM20X!

 

 

 

🏅 Best March Madness Promo Codes: Onyx Odds

Rounding things out is something different than what we’ve seen thus far - a social sportsbook. Onyx Odds adds to our collection of the best National Championship promotions with their recently boosted welcome bonus:

  1. Click here 👈🏼 for a new Onyx Odds account
  2. Enter one of the best National Championship promotion codes: ALARM
  3. Spend at least $10 on Onyx Coins/Cash bundles
  4. Receive $150 worth of Onyx CASH bonus picks over three days!

It’s been boosted from $100 to celebrate March Madness! However, that means there is no time to delay; create your new account now ⏰ using our exclusive Onyx Odds promo code bonus ALARM for one of the best National Championship promotions!
 

 

 

🎯 Target ANY Sporting Event After Activating the Best March Madness Promo Codes

While tonight may be all about UConn vs. Michigan, you’re more than welcome to target ANY sporting event. So, once you’ve scored each of the best National Championship promotions above, here are several options for you to consider going with: