MLB Prediction Apps: Get $100+ in Bonuses for Trading Markets

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MLB Prediction Apps: Get $100+ in Bonuses for Trading Markets originally appeared on The Sporting News. Add The Sporting News as a Preferred Source by clicking here.

There is nothing better than starting a Monday MLB slate with some serious house money in your pocket. As MLB prediction apps continue to grow in popularity, we've got a real chance to build our bankroll before the first pitch is even thrown. Right now, there are over $100 in bonuses to collect across the market, starting with the Kalshi promo code TSN15.


Before we dive into the day's strategies, here is a quick look at how you can claim your piece of that $100+ pie across the industry's top MLB prediction apps:

Prediction App​	Promo Code​	Sign-Up Bonus Offer​
Kalshi​	TSN15​	Trade $10, Get a $10 Bonus​
Polymarket​	TSNEWS​	Deposit $20, Get a $50 Bonus​
Novig​	TSNEWS50​	Spend $25, Get 50 Novig Coins​
ProphetX​	TSNEWS​	Trade $10, Get a $20 Bonus​
OG.com​	(No Code Required)​	Trade $10, Get a $10 Bonus​

Details of the Kalshi Welcome Offer​

Available strictly to new customers, this promotion offers a fast $15 sign-up bonus that can be deployed directly on today's MLB slate. I always tell my readers to take advantage of these intro offers because they are the smartest way to test out new strategies.


Whether you want to predict the outcome of the AL East clash between the 49-51 Baltimore Orioles and the 50-48 Boston Red Sox at Fenway Park, or you prefer betting on the 42-58 New York Mets visiting the 62-37 Milwaukee Brewers, this offer serves as an excellent launchpad.


Here is the play: Kalshi’s unique prediction markets are legally available in all 50 states, provided you are at least 18 years of age. To activate the promotion, new users simply need to register here and make a first-time deposit of at least $1 into their Kalshi wallet.


The $15 bonus will automatically unlock after you make a total of $10 in trades on the platform. The best part? You don't have to risk it all on one wild trade. Once your initial qualifying trades are settled—no matter how you break up that $10—the bonus funds are fully unlocked and ready to use.

Claim More Offers Across Top MLB Prediction Apps​

Why stop at $10? We're in this together, and if you want to seriously boost your prediction arsenal, there are four other standout platforms we are taking advantage of today:

• Polymarket: Use promo code TSNEWS here. When you make a $20 deposit, you will score a massive $50 bonus to use on their prediction markets.
• Novig: Lock in promo code TSNEWS50here. Spend just $25 in trades and they will instantly hand you 50 Novig Coins.
• ProphetX: Enter promo code TSNEWShere. Trade your first $10 and grab a quick $20 bonus.
• OG.com: No promo code needed. Sign up here and trade $10 on the platform to instantly receive a $10 bonus.

MLB Probabilities for Monday​

Matchup	Probability
PIT @ NYY	PIT 48.3% / NYY 51.7%
BAL @ BOS	BAL 43.0% / BOS 57.0%
LAD @ PHI	LAD 44.5% / PHI 55.5%
SD @ ATL	SD 43.7% / ATL 56.3%
NYM @ MIL	NYM 34.6% / MIL 65.4%

Let's talk strategy. If you use your unlocked Kalshi funds to back today's heaviest moneyline favorite, the Milwaukee Brewers, a $10 trade will return a safe but modest $4.63 in profit. Conversely, if you are hunting for value and take a chance on the biggest underdog on the slate, the New York Mets, that exact same $10 stake would net a sweet $17.70 in winnings.


When I'm searching for an edge, I’m targeting the Los Angeles Dodgers (+116) as an incredibly live underdog against the Philadelphia Phillies. I'm placing these bets because the stats paint a clear picture: Los Angeles boasts a vastly superior offense, hitting .260 as a team, which noticeably outperforms Philadelphia's .236 team average.


Add in the fact that the Dodgers hold a steady pitching advantage with a sharp 3.49 collective ERA—comfortably besting the Phillies' 4.21 team mark—and we have a real chance at a highly profitable upset.

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