Content on this page may include affiliate links. If you click and sign up/place a wager, we may receive compensation at no cost to you.
Polymarket promo code SPORTSLINE: Get $20 bonus for Red Sox-Dodgers, Astros-Rangers, MLB predictions on Sunday
New Polymarket users can get a $20 bonus on Sunday for any of the top games of the day after depositing $10 or more

Sunday is the last full day of MLB action before Monday's trade deadline, and sports fans can claim the Polymarket promo code SPORTSLINE, which gives new users a $20 bonus when they deposit $10 or more. The Red Sox and Dodgers headline Sunday Night Baseball, while another key series wraps up with the Astros hosting the Rangers. Click here to get started and claim your $20 bonus after depositing $10 with the Polymarket promo code SPORTSLINE:Â
Head to the Polymarket promo code review page to see the terms and conditions of this offer.
How to sign up for the Polymarket referral code SPORTSLINE
You can sign up for this Polymarket offer using the steps listed below. This offer is only available for new users.
- Click CLAIM BONUS on this page. Download the Polymarket app.
- Create an account and provide all the required information, such as name, email and payment details. Use the code SPORTSLINE to get your bonus.
- Make a first deposit by your preferred deposit method and follow the prompts.
- New users must deposit at least $10 in contracts for the $20 trading bonus to be applied to their account.
After depositing $10 with the Polymarket promo code, new users will be given a $20 trading bonus:Â
Sunday trading preview
- Astros to win vs. Rangers (Polymarket 55%)
- Dodgers to win vs. Red Sox (Polymarket 62%)
The two top teams in the AL West wrap up a pivotal three-game set on Sunday. The Astros took the series opener 11-2 in dominant fashion before wining 5-4 on Saturday. Houston can get a series sweep with a win on Sunday. The Rangers will send Kumar Rocker (4-8, 4.03 ERA) to the hill here while Houston counters with Peter Lambert (8-5, 3.06). The SportsLine Projection Model, which simulates every MLB game 10,000 times, has the Astros winning in 62%Â of simulations, a result that's priced at 55%Â at Polymarket.Â
The Dodgers host the Red Sox in the final game of the day in what very well could be a World Series preview given how well Boston has played of late. The Sox took the series opener 9-4 on Friday and had baseball's best record in July. They go for the sweep Sunday after a 3-2 victory on Saturday. Lefty Jake Bennett (6-4, 2.74 ERA) will get the starting nod for Boston while L.A. starts Emmet Sheehan (4-7, 4.95 ERA). The model has a 'B' grade as L.A. wins in 63% of its simulations, and the Dodgers are trading at 62%Â at Polymarket. Trade on Sunday's MLB games and more with the Polymarket promo code SPORTSLINE:
Responsible Risk Management
Polymarket offers different ways to keep its users safe with risk management tools like trading breaks, a voluntary opt-out feature and funding limits. Â
Prediction Markets are regulated by the Commodity Futures Trading Commission (CFTC) - an independent agency of the U.S. federal government.
Event contracts trading involves a risk of substantial loss and is not suitable for all investors. Participation in prediction markets is subject to applicable eligibility requirements. Participation may be restricted or prohibited in certain jurisdictions and participants are responsible for ensuring their participation complies with applicable laws and regulations in their jurisdiction.
