Boom Fantasy Promo Code GRINDERS to Get $100 (March 2026)

by Virginia Gandolfo (vgandolfo) Last Updated 2026-03-23T10:08:55
✅ Fact checked by Pablo Capris

Updated on 3/28/26

Boom Sports

Get a Risk-Free Entry up to $100!

Bonus Code

GRINDERS

Claim $100

Must be 18+ (19+ or 21+ depending on state of residence) and within applicable state. Full T&Cs apply.

The Boom Sports promo code GRINDERS yields the welcome offer of Get a Risk-Free Entry up to $100! This welcome bonus code helps you make picks and win real cash on Boom Sports by protecting your first entry if it falls short.

Register now or continue reading to get more promo code details, including sign-up instructions, & terms and conditions. The RotoGrinders team has compiled a complete Boom Sports app review based on our testing.

The TL;DR

When new users sign up with Boom Sports promo code GRINDERS, they Get a Risk-Free Entry up to $100! This offer is active as of March 28, 2026 (confirmed by the RotoGrinders promos team).

Boom Sports Promo Code Offer (March 28, 2026)

The Boom Sports promo code GRINDERS is excellent for anyone who likes DFS and player pick’em games. When you sign up with this code, you Get a Risk-Free Entry up to $100!

Boom’s current bonus offer is competitive with the sign-up offers that you’ll find at other top DFS sites. While this new-player bonus isn’t a no-deposit match, it offers first-play protection up to $100. If your first entry is a bust, you’ll get 100% of your stake back in the form of site credit to use on a different entry.

Use your Boom Sports new-player bonus to make picks on current sports like the NHL, NBA, MLS, and the NFL Conference Championship.

This week is the ultimate “double-dip” for sports fans as we transition from the high-stakes drama of the college hardwood to the nostalgic crack of the bat. March Madness enters its most intense phase with the Sweet 16 tipping off this Thursday and Friday (March 26–27), featuring heavy-hitters like Purdue vs. Texas and a blue-blood showdown between Duke and St. John’s. Just as the brackets narrow down to the Elite Eight over the weekend, Major League Baseball officially re-enters the chat. This year marks a historic rollout, starting with a standalone “Opening Night” between the Yankees and Giants on Wednesday, March 25, followed by the earliest traditional Opening Day in history on Thursday.

While baseball and brackets take the headlines, the pro leagues and tours are serving up a massive weekend slate for those looking to diversify their cards. The NBA schedule is punctuated by a Sunday afternoon clash between the Nuggets and Warriors, alongside a pivotal Western Conference battle as the Thunder visit the Knicks. On the ice, the Panthers and Rangers meet Sunday in a matchup with major President’s Trophy implications. For those who prefer a slower burn or high-octane speed, the PGA Tour’s Houston Open concludes its final round on Sunday, while NASCAR heads to the legendary paperclip at Martinsville for the Cook Out 400. It is quite literally the busiest week on the 2026 calendar, so make sure your multi-view is ready.

How the Boom Sports Bonus Offer Works

Updated on 3/28/26

Boom Sports

Get a Risk-Free Entry up to $100!

Bonus Code

GRINDERS

Claim $100

Must be 18+ (19+ or 21+ depending on state of residence) and within applicable state. Full T&Cs apply.

New player DFS bonuses aren’t always self-explanatory. Luckily, the new-user offer and play protection at Boom Sports are easy to claim:

Just follow these steps to Get a Risk-Free Entry up to $100!:

1. Click the links on this page to download the Boom Sports app. If you’re on a desktop, you’ll go to a page where you can use your phone to scan the QR code.

2. Complete registration, entering promo code GRINDERS when prompted.

3. Meet the minimum deposit of $10.

4. Make initial entry up to $100. If it loses, you’ll get your money back!

Boom Sports Existing Promos

After you sign up with the promo code, you can claim offers beyond the initial welcome bonus:

Boom Sports Pick n’ Spin Promo

One popular existing promo among Boom Sports players is the Pick n’ Spin promo.

By making just two picks, you can win with a multiplier as low as 2x and as high as 500x!

And now, profit boosts can apply to Pick n’ Spins, giving you yet another way to increase potential winnings.

Mystery Boost Mondays

Start your week off with a surprise every Monday, as Boom Sports gives away Mystery Boosts.

Tuesday Doubles

Two discounted picks are available every Tuesday at Boom Sports!

Super Wheel Wednesday

I’ve found that Super Wheel Wednesday at Boom Sports helps me get through the week that much easier—the app cranks up the min multiplier to 2.5x and the max to 1000x.

Thursday Drops

Boom Sports is well-known for its Thursday Drops, which feature weekly specials for existing users.

Risk-Free Fridays

Fridays at Boom Sports offer extra protection via their Risk-Free promos!

Super Boost Saturdays

Boom Sports makes the weekends fun with its Super Boost Saturdays. It’s exactly what it sounds like—picks across in-season leagues are accompanied by generous boosts to help increase potential payouts.

Outside of DFS, many players also take advantage of promotional rewards at social casinos offered by leading platforms, which often include free coin drops, sweepstakes entries, and more.

Boom Sports Overview

If you want to know more about the gaming experience at Boom Sports, RotoGrinders is here to help.

One of its main attractions is pick’em games, which simplify the DFS experience. All you have to do is determine whether a player will get More or Less than Boom Sports’s projected stat.

Lineups consist of anywhere from 2 to 5 players, with you increasing your potential payout the more picks you make. Other fantasy apps let you make 6 or even 8-player lineups, but I find that the 5 max at Boom keeps me humble.

I also appreciate Squad Rides, as I can draft a roster of 3 players and hope that they reach their milestones. And with the opportunity to win 20x my entry, I find myself gravitating towards this game format at Boom Sports.

While DFS gives you a competitive edge with sports predictions, many players also enjoy relaxing with casual gaming on the side. If you’re looking for a fun break from stats and strategy, check out our social casino platforms review.

Use the Boom Sports Promo Code on These Sports

Boom Sports is growing fast, offering prop games for NFL, NBA, NHL, MLB and College Football. You can use the Boom Sports promo code on any of the sports that are available on the app during the current season.

So, whether you want to take More or Less on NFL rushing yards, NBA assists, or NHL saves, you’ll be able to find it on Boom Sports.

As Boom Sports continues to grow, expect more sports to be added to the app like the recent additions of MMA and college ball.

For those diving into NFL, our NFL DFS optimizer is a helpful tool for identifying value picks and building more informed lineups.

Contests on Boom Sports

Leave your salary cap constraints, game theory, and roster construction at the door! Boom Sports is booming with pick’em games — Toss-ups, Longshots, and Favorites — allowing users to win real cash simply by picking and predicting fantasy picks, which are similar to the player props of traditional sports betting.

Additionally, Boom Sports has a matchup game mode where users predict which player will have more of a given stat (similar to Underdog Rivals).

For example, you might see Patrick Mahomes vs. Josh Allen and choose which player will finish the game with the most passing yards.

In all of the cases, you’ll be testing your forecasting skills on player prop lines created by the Boom Sports analytics team.

Boom Sports Promo Code for NFL

For the 2026 NFL season, Boom Sports is offering Over/Under and matchup pick ’em options for all the games in its usual Toss-ups, Longshots, and Favorites categories.

Choose from several different statistics, ranging from TDs to passing yards. All you have to do is pick whether a player will get more or less than the listed projection, making Boom Sports one of the apps like PrizePicks. This is a fun way to root for (or against) the stars and rising stars of the tournament.

Boom Sports Promo Code Eligible States

The Boom Sports promo code is available in every state in which the app’s DFS can be played. And lucky for you, Boom Sports is currently live in 21 states plus the District of Columbia.

You can download the Boom Sports app and use the promo code GRINDERS to Get a Risk-Free Entry up to $100! if your first entry falls short in one of the following U.S. jurisdictions: AK, AR, CA, FL, GA, IL, KS, KY, MA, MI, MN, NE, NH, NM, NC, ND, OK, OR, RI, SC, SD, TX, UT, WI, WY, and DC

Age Requirement Note: You must be at least nineteen to play real money contests if you’re a legal resident of Nebraska or twenty-one years of age if you’re a legal resident of Massachusetts.

Also, note that Boom Sports‘ pick’em games follow different regulations but are a trustworthy alternative to legal sports betting. The app still complies with state laws to ensure your data and money are protected.

List of Prohibited States

You will not be able to use the Boom Sports promo code to play real money contests if you’re in the following states: Alabama, Arizona, Colorado, Connecticut, Delaware, Hawaii, Idaho, Indiana, Iowa, Louisiana, Maryland, Mississippi, Missouri, Montana, Nevada, New Jersey, New Hampshire, New York, Ohio, Pennsylvania, Tennessee, Vermont, Virginia, Washington and West Virginia.

Boom Sports Deposits and Withdrawals

You need to deposit to claim the bonus and play at Boom Sports. While I’m fond of PayPal for funding my account, other available deposit methods include:

• Credit cards (VISA, Mastercard, Discover)
• Debit cards (VISA, Mastercard, Discover)
• Venmo

Note that you must deposit at least $10 at a time.

As for withdrawals, I get them to my PayPal account since Boom Sports automatically pays out to the original deposit source.

That is, unless you deposited with a credit card since credit cards can’t accept withdrawals—in that case, you can designate a withdrawal source.

I almost always get my PayPal withdrawals in the promised same-day timeframe. Boom Sports claims that online banking/direct deposit withdrawals take 1 business day, but card withdrawals may take up to 7.

Boom Sports Customer Support

Most DFS apps have dedicated customer service pages, but Boom lacks in this department.

Boom Sports’s customer support team shouldn’t be as difficult to contact as it is. I could only find their email address (support@boomfantasy.com) hidden in their FAQ section and privacy policy. And forget about a phone number or live chat—they’re non-existent.

Between decent reply times for the email address and a just-fine self-help FAQ section on the website, Boom’s customer service team is adequate enough. But it definitely falls short of other support systems we’ve seen from DFS operators.

Boom Sports App Review

While the promo code is reason enough to want to join Boom Sports, you might be wondering if the app will get you to stick around past the welcome offer.

I think there’s a good chance it will. The Boom Sports app has made significant strides since it first came out, notably in regards to user experience. Gone are the days of an alphabetical list of athletes; instead, convenience is now the name of the game thanks to a search feature.

Other pros of the Boom Sports app include:

• High multipliers (especially with the Pick n’ Spin promo)
• Several deposit and withdrawal options
• Simple game modes (Pick’em, Squad Rides, Pick & Spin)
• Clean user interface
• Search feature and showing of popular picks instead of alphabetical listing

While Boom Sports is definitely one of my go-to DFS apps, it’s not without its cons. A few of its shortcomings include:

• Pick’em only (no traditional lineups)
• Limited customer support
• Sports menu isn’t as diverse as other DFS apps I’ve used

For more advanced lineup building, SimLabs offers a way to create DFS lineups using simulation in just minutes.

Boom Sports Promo Codes FAQ

We’re leaving nothing to the imagination—if you have more questions, see below for clear answers:

What is the Boom Sports promo code?

GRINDERS. When you sign up with this promo code, Boom Sports will let you Get a Risk-Free Entry up to $100!

Is Boom Sports legal?

Yes, Boom Sports is a legal and legit DFS app that adheres to state laws and licensing requirements. It also has thousands of positive reviews across the Apple and Google Play versions of its app. Users in the following states may play: AK, AR, CA, DC, FL, GA, IL, KY, MN, NE, NM, NC, ND, OK, OR, RI, SC, SD, TX, UT, VA, WI.

What deposit methods are available at Boom Sports?

You can fund your account and become eligible for the Boom Sports entry by depositing via credit/debit cards (VISA, Mastercard, Discover) or PayPal. You’ll have to shell out at least $10 to meet the minimum deposit requirement.

Does Boom Sports have a first deposit match offer?

The main promo at Boom Sports is first-entry protection rather than a first deposit match: Get a Risk-Free Entry up to $100! However, this offer functions similarly in that it helps pad your bankroll so you can get off to a right start at the DFS platform. You can claim this offer by signing up with code GRINDERS.

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