Sports Gambling

MLB Prediction Markets: Underdog Promo Code BROAD Gets $1,000 Bonus

By Matt Modi

Published: Sep 22nd, 2026 · 5:20 PM EDT

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Eligible new users looking to capitalize on tonight’s matchup between the Brewers and the Phillies, or any other MLB game, can unlock a unique welcome offer using our Underdog Predict promo code BROAD. By signing up and making an initial deposit, new users can receive up to $1,000 in bonuses via a 50% deposit match, or a 25% match up to $250 in predicts-only states, subject to applicable terms. Start signing up here.

Underdog Promo Code BROAD for MLB Prediction Markets

Underdog Promo Code	BROAD
New Underdog Prediction Market User Offer	Up to $1,000 in bonuses via a 50% deposit match (or 25% match up to $250 in predicts-only states)
Disclaimer	Trading involves risk, including total loss on positions. Trading decisions and their consequences are your sole responsibility. Nothing on underdogexchange.com constitutes a recommendation, solicitation, or offer to buy or sell any financial instrument. UDX is subject to CFTC regulatory oversight. Promotion issued by affiliate.
Date Last Verified	September 22nd, 2026

Claim your welcome offer today to unlock extra trading capital for tonight’s clash between the Milwaukee Brewers and the Philadelphia Phillies. By utilizing the deposit match, you gain immediate flexibility to dive into MLB prediction markets with additional resources.

Eligible new Underdog customers can sign up, fund their accounts, and take advantage of the deposit match offer to scale their trading power. To claim this offer, users must meet the minimum age requirements and reside in a participating state. Once your account is active and funded, you can browse the available markets, evaluate the current price of a contract, and confidently take a position based on your expectations for the game.

Use Underdog MLB Promo Today

Current moneyline odds for tonight’s Brewers vs. Phillies matchup list Milwaukee at +120 and Philadelphia at -142. That pricing makes the Phillies the market favorite, with -142 implying roughly a 58.7% win probability before accounting for hold, while Milwaukee’s +120 price implies about a 45.5% chance.

Those odds create an interesting contrast with the broader season-long statistical profile. Philadelphia is priced as the favorite at home, but Milwaukee’s underlying numbers give Brewers backers a case if they believe the +120 moneyline is undervaluing the visitors.

The Brewers hold a distinct advantage on the mound. Milwaukee’s pitching staff boasts a strong 3.539 overall ERA and a crisp 1.1875 WHIP, limiting opponents to a .223 batting average. Their starters have been particularly sharp, posting a 10.14 K/9 rate over the course of the season. In contrast, the Phillies’ pitching staff carries a 4.005 ERA and a 1.2858 WHIP, allowing a higher .248 opponent batting average.

At the plate, Milwaukee continues to show statistical superiority. The Brewers are hitting .258 as a team with a solid .341 on-base percentage and a .744 OPS. They have consistently generated offense, tallying 802 total runs on the year. Philadelphia’s lineup, while capable, lags behind with a .241 team batting average, a .312 OBP, and a .709 OPS, translating to 697 runs scored.

Given Milwaukee’s dual edge in both run prevention and overall offensive production, the baseline performance metrics point toward potential value on the Brewers at +120, even though the posted moneyline has the Phillies favored at -142.

How to Sign Up Using the Underdog Predicts Promo Code BROAD

Claiming your welcome offer and getting started with Underdog’s prediction markets is a straightforward process. Follow these steps to secure your deposit match bonus before the first pitch between the Milwaukee Brewers and the Philadelphia Phillies:

1. Create Your Account: Download the Underdog app or visit their website to begin registration. You will need to provide standard personal information to verify your identity.
2. Enter the Promo Code: During the sign-up process, be sure to enter the promo code BROAD when prompted.
3. Fund Your Wallet: Make your first deposit using one of the available secure payment methods. Your initial deposit will be matched at 50% up to $1,000 in bonuses (or 25% up to $250 in predicts-only states), giving you immediate additional trading power.
4. Execute Your First Trade: Browse the available prediction markets for the Brewers-Phillies matchup, or any other eligible event, and begin trading eligible contracts based on market-implied probabilities.

Please note that this offer is exclusively for new users who meet all minimum age and regional eligibility requirements.

Understanding Underdog Prediction Markets

Unlike traditional formats, Underdog operates as a true prediction market. Here, you actively buy or sell contracts tied to a specific outcome—such as whether Milwaukee or Philadelphia will win tonight’s game.

The trading mechanics are grounded in market efficiency: the price of a contract directly reflects the market-implied probability of that outcome occurring. If you believe a team’s true chances of winning are higher than the contract’s current trading price indicates, you can buy the contract to lock in your position. Conversely, you can sell contracts if you believe the market probability is too high. This dynamic pricing allows you to leverage your sports knowledge by trading directly on the market’s fluctuating expectations.