The historic Yankees vs. Red Sox rivalry returns to Fenway Park on Tuesday, April 21, marking their first April meeting since 2022. New users can capitalize on this marquee matchup with the Underdog promo code COVERS, which delivers $50 in bonus entries when you place your first $5 entry.
This welcome offer is available Tuesday, April 21, making it perfect timing for predictions on Aaron Judge's power surge and Ben Rice's hot streak. Underdog Fantasy ranks among the best prediction market apps for daily fantasy sports enthusiasts.
Play $5, Get $50
Code: COVERS
Underdog promo code delivers $50 bonus for Yankees vs Red Sox
The Underdog promo code COVERS unlocks a substantial welcome bonus for new users looking to make predictions on Tuesday's AL East showdown. After placing your initial $5 entry on any contest, you'll automatically receive $50 in fantasy bonus entries within 72 hours. This 10-to-1 bonus ratio provides excellent value for testing Underdog's prediction markets on high-profile games like Yankees vs. Red Sox.
The bonus entries come with a 1x wagering requirement that must be completed within 14 days of receipt. You have 60 days to use your bonus entries before they expire, giving you plenty of opportunities to make predictions on upcoming MLB games. For example, if you predict Aaron Judge will hit a home run and he delivers his 18th of the season, your winnings from bonus entries convert to withdrawable cash. Conversely, if Judge goes hitless, you only lose the bonus entry rather than your own funds.
Key terms include age restrictions (18+ in most states, 19+ in Alabama and Nebraska, 21+ in Arizona, Massachusetts and Virginia) and geographic limitations. The offer is not available in New Jersey, New York, Maryland, Ohio, Michigan and Pennsylvania. Account verification is required before withdrawing any winnings. Compare this offer with other best prediction market promos to maximize your fantasy sports value.
Use the correct Underdog promo code for your state
| Underdog Promo Code | Eligible States |
| COVERS | AK, AL, AR, AZ, CA, CO, FL, GA, IL, IN, KS, KY, MA, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV, WY |
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How to claim your Underdog promo for Tuesday's rivalry game
Claiming your Underdog welcome bonus for Yankees vs. Red Sox predictions is straightforward. Follow these steps to secure your $50 in bonus entries using promo code COVERS:
- Download the Underdog Fantasy app or visit their website
- Create your new account and enter promo code COVERS during registration
- Verify your account with required identification documents
- Make your first deposit of at least $5
- Place your initial $5 entry on any available contest, including Tuesday's Yankees vs. Red Sox matchup
- Receive your $50 in bonus entries automatically within 72 hours
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