There’s truly nothing better than a nice pay day at the ballpark, and if we’re handicapping today’s slate, you absolutely need to lock in the Fliff promo code STIFFS50. New customers can sign up here to grab a massive welcome package right now: simply spend $5 to get $50 in free play, plus a 100% match up to $100 on your first deposit.

Whether you’re tailing me on today’s Kansas City Royals vs. Houston Astros matchup or eyeing any other MLB game this week, this is the perfect way to build that starting bankroll and chase bigger payouts.

Fliff Promo Code STIFFS50 Unlocks $150 Bonus

Before the Royals take on the Astros, we need to make sure your account is ready with the best sign-up bonus on the board. Here is a quick breakdown of the welcome offer to get us started:

Fliff Promo CodeSTIFFS50
New User OfferGet $150 Offer
Date Last VerifiedSeptember 15, 2026

Info for the Welcome Offer

Before we dive into the morning line and start making our picks, let’s break down exactly what new Fliff customers are getting. When you use our exclusive promo code, you’re looking at a two-part bonus structure. First, when you spend just $5, you’ll score a cool $50 in free play.

On top of that, Fliff is throwing in a 100% match up to $100 on your first deposit. I love this setup because it gives us a real chance to maximize our initial funds so we can approach today’s MLB action with total confidence.

Keep in mind, this promotion is strictly for new Fliff customers. To jump in, you need to be at least 18 years old and physically present in a state where the platform operates. Luckily, Fliff is available in most states across the U.S., making it incredibly easy for baseball fans to get in the trenches and take advantage of this sign-up promotion.

Use Your Bonus for MLB Picks

A $5 play on a heavy favorite will yield a smaller, safer return, while backing a live underdog gives us a shot at a much higher payout if they can pull off the upset.

When handicapping this game, I’m leaning heavily on season-long performance to tell the story. The Houston Astros are hovering right at an even 75-75 overall record. On the flip side, the Kansas City Royals have had a rough go of it, stumbling into Daikin Park with a 66-84 record.

Fliff Promo Code Guide for New Users

Ready to get started? I’m walking you through the exact steps to claim this generous welcome package. We’re in this together, so whether you’re riding with the Astros at home or hoping the Royals pull off a road upset, follow my lead to activate your Fliff bonus before the first pitch:

  1. Create Your Account: Register for a new account here by providing standard personal information. You will also need to provide a quick proof of ID to verify your age and eligibility.
  2. Enter the Promo Code: This is the key step! During the registration process, be sure to enter the promo code STIFFS50 when prompted to lock in our exclusive bonus.
  3. Make a Deposit: Fund your account for the first time, and Fliff will reward you with a 100% deposit match up to $100.
  4. Make Your First Pick: Spend just $5 on any pick—like today’s matchup between Kansas City and Houston—and you will instantly unlock your extra $50 in Free Play.

Once you knock out these steps, your account is fully funded and ready for all the MLB action.