Kalshi Promo Code TSN15: Get $15 MLB Bonus After $10 in Predictions

Activating the Kalshi promo code TSN15 is the absolute best way to step up to the plate. Exclusively for new customers who register here, this welcome offer unlocks a sweet $15 bonus after you make just $10 in trades.

We're in this together, so I'm here to show you exactly how to leverage this bankroll boost for Sunday's MLB slate. Whether you're eyeing the 54-win Atlanta Braves visiting the St. Louis Cardinals or the 61-win Los Angeles Dodgers hosting the Arizona Diamondbacks, this promo gives us a real chance to chase bigger payouts with confidence.

Use Kalshi Promo Code TSN15 Before the MLB All-Star Break

Details of the $15 Welcome Bonus

Available strictly to new Kalshi customers, this welcome offer is the perfect spark to kickstart your trading bankroll. To claim the reward, all you need to do is make a minimal first-time deposit of at least $1. From there, your $15 sign-up bonus fully unlocks the moment you've placed $10 in trades on their prediction markets.

I love a low-risk opportunity, and this lets us get involved with today's MLB slate without sweating the initial stake—whether you want to back the Houston Astros with Cristian Javier on the mound or ride with the Texas Rangers and MacKenzie Gore.

What makes this platform a true game-changer for us handicappers is that Kalshi operates legally in all 50 states. As long as you are at least 18 years old, you're good to go. Just register, meet the $1 deposit and $10 trade requirements, and start firing those bonus funds at exciting matchups, like Kevin Gausman and the Toronto Blue Jays taking on Germán Márquez and the San Diego Padres.

Start Trading on MLB Outcomes

Let's talk strategy and payouts. If we place our qualifying $10 trade on today's heaviest moneyline favorite—the Los Angeles Dodgers—a winning prediction nets a modest profit of $4.88. But if we're feeling bold and throw that same $10 trade on the day's biggest underdog, the Arizona Diamondbacks, we're looking at a much juicier $17.20 in winnings if they pull off the upset. There is nothing better than hitting a heavy plus-money ticket.

Personally, when handicapping this board, a quick dive into the stats shows exactly why the Dodgers are the morning line monsters here. Offensively, L.A. is mashing with a team OPS of .784 and 501 total runs scored, leaving Arizona's .693 OPS and 411 runs in the dust.

The Dodgers also hold a massive edge on the bump, bringing an impressive 3.50 staff ERA and a 1.13 WHIP to the party, which comfortably outclasses Arizona's 4.22 ERA and 1.27 WHIP. The numbers don't lie, making Los Angeles one of the safest anchor trades we can make today.

Kalshi Promo Code: Steps to Register

Ready to build that bankroll? Claiming your welcome offer is a simple, no-sweat process. Follow my step-by-step blueprint below to properly activate the offer and secure your $15 sign-up bonus:

1. Create an Account: Register here by providing your standard personal info (name, date of birth, and email address). You'll also need to provide proof of identification to verify the account—it's standard industry practice to keep us all playing safely.
2. Enter the Promo Code: During registration, make absolutely sure to enter the Kalshi promo code TSN15 to lock in the promotion.
3. Make a Deposit: Link your preferred, approved payment method and make a first-time deposit of at least $1.
4. Place Your Trades: Here's the fun part. To unlock that bonus, you must make $10 worth of trades. It doesn't have to be a single $10 trade. You can spread the risk across multiple markets.
5. Enjoy the Bonus: The second your cumulative trades hit $10, your $15 sign-up bonus unlocks and drops right into your account.