Kalshi Promo Code TSN15: Get Up to $500 Sign Up Bonus for MLB Trades

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Kalshi Promo Code TSN15: Get Up to $500 Sign Up Bonus for MLB Trades originally appeared on The Sporting News. Add The Sporting News as a Preferred Source by clicking here.

If you are ready to step up to the plate and find a real chance at a nice pay day, there is nothing better than today's MLB slate. By activating the Kalshi promo code TSN15here, new customers can unlock a phenomenal welcome offer: trade $25 and get up to a $500 bonus.

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Whether you are looking to make predictions on today’s heavy-hitting matchups—like the clash between the Los Angeles Dodgers and the Arizona Diamondbacks—or targeting any other MLB game this weekend and into the playoffs, this bonus gives you the perfect ammunition to build your bankroll.

Kalshi Promo Code TSN15: Max $500 Bonus Available to New Users

Kalshi Promo CodeTSN15New User OfferTrade $25, Get Up to $500 BonusTerms and Conditions18+ and Present in the USDate Last VerifiedAugust 8, 2026

Understanding the Welcome Offer

We are always looking for value, and this promotion strictly reserved for new Kalshi customers delivers exactly that. Because Kalshi operates legally across all 50 states, anyone who is at least 18 years old can register, fund their account, and dive into the platform's unique prediction markets. To get started, you simply need to make a first-time deposit of at least $1.

To officially unlock your bonus, you just need to make $25 in trades on the platform. Once you cross that threshold, Kalshi will reward you with a trading bonus.

The payouts are tiered, giving you a chance at a massive reward: 70% of participants receive a $15 trading bonus, 24% secure a $35 bonus, 5% grab $75, 0.65% land a $100 bonus, and a lucky 0.35% walk away with the ultimate $500 trading bonus. With today's packed MLB schedule, finding $25 worth of smart trades to activate your bonus is an absolute breeze.

MLB Vig-Free Probabilities

MatchupMoneylineProbability (Vig-Free)NYM @ PITNYM +118 / PIT -141NYM 43.9% / PIT 56.1%CHC @ KCCHC -168 / KC +140CHC 60.1% / KC 39.9%MIN @ MILMIN +127 / MIL -152MIN 42.2% / MIL 57.8%BAL @ TEXBAL +120 / TEX -144BAL 43.5% / TEX 56.5%LAD @ ARILAD -171 / ARI +141LAD 60.3% / ARI 39.7%

Let's look at the numbers. If you are testing the waters and want to trade $10 of your total requirement on today's heaviest favorite, the Los Angeles Dodgers (-171), a winning prediction yields a steady profit of $5.85. On the flip side, if you are hunting for a larger payout and back the slate's heaviest underdog, the Arizona Diamondbacks (+141), that same $10 trade would return a sweet $14.10 profit.

When handicapping this NL West showdown, a quick look at the stats shows exactly why the morning line heavily favors Los Angeles. The Dodgers bring a powerhouse lineup to the diamond, slashing a .262 batting average and a .771 OPS while mashing 149 home runs. Arizona lags noticeably behind with a .243 average, .707 OPS, and 111 homers.

On the mound, I always look for a clear edge to key in on, and L.A. has it: their pitching staff boasts a 3.744 ERA and a 1.159 WHIP, easily outpacing the Diamondbacks' 4.207 ERA and 1.298 WHIP. It is exactly the kind of statistical advantage we want to exploit.

Signing Up with the Kalshi Promo Code

Ready to get off the sidelines? I'm placing these bets right alongside you, and setting up your account is incredibly straightforward. Just follow these simple steps to secure your bonus:

  1. Create an Account: Register for a new account here by providing your standard personal information.
  2. Verify Your Identity: Provide the necessary proof of identification to ensure your account is verified and secure.
  3. Enter the Promo Code: During the registration process, make sure to enter the Kalshi promo code TSN15.
  4. Make a Deposit: Fund your new account by making a first-time deposit of at least $1.
  5. Place Your Trades: Make a total of $25 worth of trades on the platform to activate the offer. You do not have to risk $25 on a single massive trade; any combination of smaller trades that add up to $25 will satisfy the requirement.

Once your initial $25 in trades has been locked in, your tiered bonus (up to $500) will be credited to your account, giving us plenty of extra funds to tackle today's MLB action and start chasing those bigger payouts.

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