March Madness Free SC Promos at Sweepstakes Casinos

March is one of the busiest months in the sports calendar, thanks to the excitement of the NCAA Men’s Basketball March Madness! And sweepstakes sites are celebrating with a mix of promotions and chances for free coins across casino and sportsbook-style games in 2026.

Sweepstakes casinos are powered by virtual currencies like Gold Coins (GC) and Sweeps Coins (SC). While GC are used purely for entertainment, SC can be redeemed for cold hard cash, giving players a real incentive to participate!

Best March Madness Free SC Bonuses & Promo Events

This year, major sweepstakes platforms like Legendz, Sportzino, and Crown Coins Casino are rolling out month-long promotions.

From score prediction leaderboards and social bracket challenges to limited-time first-purchase deals, players can enjoy the exciting social angle these sites offer, while winning real prizes in the process.

So let’s take a look at what’s available during the March Madness period in the world of sweeps!

Legendz March Mayhem

Legendz sweepstakes platform is bringing the heat with March Mayhem, a month-long run of rotating offers and activations across sportsbook and casino areas.

March Mayhem Raffle

First, we have the March Mayhem Raffle running during this period, featuring awesome prizes like gaming gear, tech gadgets, and more.

It’s really easy to earn tickets:

• Casino: Complete 50 spins on any Penguin King game
• Sportsbook: Place 5 x 10 SC plays

Every completion earns you one raffle ticket, so the more you play, the more chances you have to win. This raffle runs March 1 – April 1, with the draw happening April 1.

March Mayhem Predictor

Next, in March Mayhem Predictor, players guess the scores of games, earn points, and climb the ranks each round, with a total prize pot of 20,000 SC!

Here’s exactly how to play:

1. From March 16, go to the ‘My Hub’ section found in the side menu of the website and head to ‘Match X’.
2. Each round of the tournament, make your predictions of which team will win and the margin they’ll win by.
3. Earn 5 points for an exact correct prediction and earn 3 points for predicting the winning team but wrong winning margin.
4. Check back after each round to see your score on the tournament leaderboard.

Players win SC based on their final leaderboard ranking, and there are 10 overall winners, with the top spot earning 7,500 SC – wow!

March Mayhem Game Bracket Challenge

Finally, Legendz has launched its March Mayhem Bracket Challenge, where players’ favorite games go head-to-head in a daily bracket-style competition.

Each day, two games compete, and players decide the winner while completing missions tied to their chosen game to earn Sweeps Coins (SC). It’s something different, for sure!

To participate:

1. Go to ‘My Hub’ on the Legendz platform.
2. Complete the mission associated with your favorite game.
3. Cast your vote for which game should advance.

Winning games move forward through the bracket until a single champion is crowned. At the end of the tournament, Legendz will celebrate with a 10,000 SC prize pool, rewarding participants who engaged with the challenge throughout March Mayhem!

Sportzino March Mania

Sportzino is one of the best social sportsbooks/casinos around, and it’s offering an excellent signup offer for new members. Then, similar to Legendz, there are three further promotions for all players, both new and current.

First, the signup deal offers 220,000 GC + 10 SC + 30 Free Spins for new members during this period. To claim it, all you need to do is:

1. Sign up via a SweepsKings link and create your free account.
2. Complete your registration details.
3. Enter the promo code ‘MMSZ26’ during sign up.
4. Verify your email and phone number.

Your 30 Free Spins will be awarded once you enter the promo code during registration and successfully complete the sign-up process.

Now let’s look at the next three parts of the ‘March Mania’ promotion.

Mega Jackpot

Sportzino says this is its biggest prize pool ever, and we can believe it with 50,000 SC + 1,000,000,000 GC up for grabs!

Players get automatically entered into the jackpot draw when they make any NCAA Men’s Basketball Tournament prediction (minimum 20 SC with a minimum of -150 final odds or longer) between March 19 and April 6.

The more picks you make, the more raffle tickets you earn to climb the leaderboard, and the 10 lucky winners will then be picked out of a hat and share in the mega prize pool!

30% More on Your Playslip

Next, you can get a 30% boost on your bet’s potential payout if you place a qualifying bet on college basketball at Sportzino during March Madness.

You just need to make an NCAA Men’s basketball same game parlay between March 19 and April 6, and the free 30% boost token will be added to your playslip!

Bear in mind that eligible picks must have a minimum of -200 final odds or longer and must be a same game parlay (SGP).

No Sweat Same Game Parlays

Then we finish up at Sportzino with this deal where you win on your bet OR you get a free 50 SC to spend on the NBA.

To take advantage:

1. Place a minimum of 50 SC on a custom NCAA Basketball SGP of your choice during the NCAA Final Four or Championship game between April 4 and 6.
2. Your SGP must have a minimum of 3-legs.
3. If you win, you win! But if you lose, you’ll be reimbursed exactly one bonus free pick worth 50 SC.

Bonus Picks will be awarded within 3 – 5 business days or earlier and will expire after 7 days if not placed on an NBA SGP.

To stay eligible, make sure to avoid:

• Picks placed using bonus SC or bonus free picks
• Odds Boosts or Golden Boosts

Also, Playslip Boosts do not apply.

Crown Coins March Madness Boosted Welcome Deals

To finish things off, Crown Coins Casino is running a more straightforward promotion for March Madness. It features two amazing and time-limited first purchase deals, designed to bring new players to the site – unfortunately this is only available for new signups.

Yes, new players will find these deals available in the coin store for 48 hours after signup:

• $9.99 tier: 400,000 Crown Coins + 20 free Sweeps Coins + 30 Free Spins
• $19.99 tier: 1,200,000 Crown Coins + 60 free Sweeps Coins + 130 Free Spins

These deals run until April 1 and are a great way to kickstart your journey at Crown Coins, where you’ll have access to the best slots, game shows, live dealers, instant win, and table games, plus the recently added Crown Bingo Live!

By the way, we’d recommend going with the second first purchase deal as it offers 200% extra free coinage, rather than just 100%.

Conclusion

As the NCAA tournament heats up, players can stay engaged all month long by following each platform’s promotions as outlined above.

There’s so much going on, but by picking out your favorites and taking part, March Madness can deliver excitement both on and off the court!