Polymarket Promo Code TSN: Get $20 Bonus for MLB Trades Monday (August 31)

If you're a casual fan looking to step up your handicapping game, there is nothing better than a nice pay day on the diamond to start your week. New customers can take advantage of an incredible welcome offer ahead of the baseball action today by using the Polymarket promo code TSN here. Get a $20 sign-up bonus after making an initial deposit of at least $10.

We're in this together, and I want to show you exactly how to use these bonus funds to wager on any of Monday's matchups or any other MLB game on the board this week.

Polymarket Promo Code TSN Delivers $20 Bonus

Start with a $10 Deposit

This is one of my favorite ways to jumpstart a betting bankroll. Exclusively available to new Polymarket customers, this offer unlocks a $20 sign-up bonus as soon as you register, verify your account, and make an initial deposit of at least $10. Keep in mind, you just need to be 18 or older and located in an eligible state to grab this value.

Once your $20 bonus hits your account, we can immediately start looking for an edge on Monday's MLB slate. We've got a board packed with intriguing cross-country matchups. Whether you're looking at the red-hot Milwaukee Brewers visiting the Chicago Cubs (fresh off their 150th-anniversary weekend at Wrigley Field), the New York Yankees traveling west to face an overhauled Los Angeles Angels squad, or a crucial clash between the Philadelphia Phillies and Arizona Diamondbacks at Chase Field, this bonus gives you a real chance to chase a bigger payout.

MLB Probabilities for August 31st

Let's talk strategy. If you place a $10 trade on Monday's heaviest moneyline favorite, the New York Yankees (-141), a winning ticket returns a modest $7.09 in profit. On the flip side, if you're looking for a bigger swing and back the biggest underdog, the Los Angeles Angels (+121), that same $10 bet yields a $12.10 profit if they can secure the home upset in front of what has been a notoriously empty crowd at Angel Stadium lately.

When I'm handicapping these games, I always look for the statistical edge. In the Yankees-Angels clash, New York's status as a heavy favorite is completely justified on the mound. The Bronx Bombers boast a stellar 3.21 team ERA, while the rebuilding Angels—currently working through a massive roster overhaul under interim GM John Mozeliak—are struggling with a 4.28 ERA.

The Angels might technically hold a slight edge in team batting average (.234 to .232), but the Yankees are vastly superior at pushing runs across the plate, outscoring Los Angeles 622 to 555 on the season. Plus, with Aaron Judge traveling with the club to ramp up his rehab activities, there's a tangible buzz around this visiting squad.

Also, keep a close eye on the Phillies and Diamondbacks tonight. The Phillies are riding a four-game road winning streak into Chase Field—a stadium that traveling Philly fans love to take over—while Arizona is anticipating the return of Ketel Marte to their lineup.

How to Register Using the Polymarket Promo Code

Getting set up is incredibly straightforward. Just follow my lead, use the Polymarket promo code TSN when you sign up, and we'll get your bankroll ready for the first pitch.

1. Create an Account: Register for a new account here by entering your standard personal information.
2. Verify Your Identity: Provide the required proof of identification to secure and verify your account.
3. Enter the Promo Code: Input the promo code TSN during the registration process.
4. Make a Deposit: Complete your activation by making a first-time deposit of at least $10 into your new account.

Once that deposit clears, your $20 offer will be fully activated. Now let’s get out there, lock in those bets, and make it a profitable Monday on the diamond.