Underdog Fantasy Promo Code WSNPLAY: Play $5, Get $100 for Celtics vs. Pistons

Key Takeaways

• Exclusive Offer: Play $5, Get $100 in Bonus Entry funds upon signing up and making a qualifying entry.

• Promo Code: Use code WSNPLAY during account creation to claim the welcome bonus.

• What Pick'em Is: A daily fantasy game where you pick More or Less on individual player stat projections to build custom entry slips.

• State Availability: Underdog Fantasy operates standard DFS across 40+ US jurisdictions, with Pick'em games specifically available in 15 states including TX, GA, and WI.

• Featured Game: Boston Celtics vs. Detroit Pistons tipping off on Tuesday, October 20, 2026.

Underdog Fantasy Promo Code Offer

The Underdog Fantasy promo code offer gives new players a boosted bankroll right from their first cash contest. When you register with code WSNPLAY, deposit funds, and place a initial $5 entry on any contest, Underdog credits your account with $100 in playable bonus entry funds.

Bonus funds act as site credit to submit additional entries across Underdog's game modes. Bonus cash carries standard playthrough requirements (typically 1x) before net winnings become eligible for withdrawal.

How to Claim Underdog Promo

1. Download the Underdog Fantasy app from the Apple App Store / Google Play Store or visit the web platform.

2. Click the signup button to initiate registration for a new account.

3. Complete the registration form with your personal details (name, email, date of birth, address).

4. Enter WSNPLAY in the Underdog promo code box when prompted during registration.

5. Deposit a minimum of $10 into your newly verified account using an approved payment method (credit card, debit card, PayPal, or online banking).

6. Build and submit an entry slip of $5 or more on any contest to trigger your $100 bonus entry funds.

Follow our link and get more info in our Underdog Fantasy review

How Underdog Pick'em Works

Underdog Pick'em is a daily fantasy contest format where players pick More or Less on individual player stat lines instead of drafting an entire team against a salary cap.

To create a Pick'em entry:

1. Select 2 to 8 player projections across available matchups.
2. Choose More or Less on each projected stat line (e.g., points, rebounds, assists, or 3-pointers made).
3. Combine players from at least two different teams on a single slip.
4. Select your payout structure (Standard Entry where all picks must hit, or Flex Entry which pays out reduced multipliers if you miss one pick).

Worked Example:

Suppose you build a standard 2-pick Pick'em entry for the Celtics vs. Pistons opener:

• Pick 1: Jayson Tatum MORE than 26.5 Points
• Pick 2: Cade Cunningham MORE than 7.5 Assists

A standard 2-pick entry that hits pays 3× your entry fee. A $10 entry on this correct 2-leg combination yields 30total(20 profit + $10 original stake). Higher leg combinations scale up in payouts (e.g., 3-picks pay 6×, 4-picks pay 10×, up to 100×+ for max-leg entries).

Celtics vs. Pistons - Players in the Spotlight

As Boston and Detroit square off on opening night, several key stars present compelling stat lines for Daily Fantasy consideration:

• Jayson Tatum (BOS): Tatum remains the engine of the Celtics' offense. Looking back at his recent output, Tatum regularly clears heavy scoring thresholds, consistently threatening the 25+ point mark when playing 32+ minutes in high-tempo opening-week contests.
• Cade Cunningham (DET): The Pistons' primary playmaker averaged over 22 points and 7.5 assists per game last season. Cunningham operates as Detroit's primary high-usage ball-handler, making his combined points + assists metrics key targets in fast-paced matchups.
• Jaylen Brown (BOS): Coming off strong individual performances last season, Brown provides high floor potential across points and rebounds, regularly accounting for 20+ field goal attempts per game.
• Jalen Duren (DET): Detroit's dominant center provides strong double-double potential, frequently pulling down 10+ rebounds and converting high-efficiency paint scoring opportunities.

Claim $100 in Bonus Entries with Code WSNPLAY

Where Underdog is Available

Underdog Fantasy operates legally across the majority of the United States, but available game formats vary by state regulations:

• Underdog Legal States (Standard DFS / Best Ball): AL, AK, AZ, AR, CA, CO, DC, DE, FL, GA, IL, IN, KS, KY, MN, MO, NC, ND, NE, NH, NM, NY, OK, OR, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV, WY.
• Pick'em Available States: Pick'em contests (More/Less player stat predictions) are specifically restricted to state regulations and available in: AK, GA, IN, MN, NE, ND, NM, OK, OR, RI, SC, SD, TX, UT, and WI.

Note: In non-Pick'em legal states, users can still access standard Daily Fantasy Drafts, Best Ball tournaments, and internal peer-to-peer contest formats.

Responsible Gambling Section

Always play responsibly. Daily fantasy sports contests should be viewed as paid entertainment, not a income source. Set strict deposit limits, never chase losses, and only wager what you can afford to lose.

If you or someone you know is struggling with a gambling problem, call or text 1-800-GAMBLER or visit ncpgambling.org for free, confidential support available 24/7. Additional state-specific resources can be accessed directly inside the Underdog Fantasy app settings under Responsible Gaming.

How to Watch

• Game: Boston Celtics at Detroit Pistons
• Date and Time: Tuesday, October 20, 2026 at 3:00 PM ET
• Venue: Little Caesars Arena, Detroit, MI
• TV Broadcast: NBC
• Live Streaming: Peacock