Kalshi Promo Code WSN: Trade $25 and Get $25 on Fire vs. Valkyries (September 18)

Published: September 18, 2026, 08:00 PM ET
3 min read

The Kalshi promo code WSN gives new traders a chance to unlock a "Trade $25 and Get $25" bonus ahead of Friday night's WNBA matchup between the Portland Fire and Golden State Valkyries. By signing up with this code, new users who make an initial deposit and execute $25 in contract trades receive a $25 bonus credited directly to their market account.

Unlike traditional sportsbooks, Kalshi functions as a fully regulated financial exchange, allowing users to trade shares on real-world outcomes using fixed event contracts. With the Portland Fire traveling to face the Golden State Valkyries on Friday, September 18, 2026 at 10:00 PM ET, traders can buy "Yes" or "No" positions on game winners, point totals, and player statistical milestones.

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Kalshi Promo Code WSN for Friday, September 18, 2026

The Kalshi promo code WSN grants access to the platform's flagship welcome incentive for the Fire vs. Valkyries WNBA slate.

Exchange FeatureOffer Details
Kalshi Promo CodeWSN
New User OfferTrade $25 and Get $25
Featured EventPortland Fire vs. Golden State Valkyries
Key Terms & ConditionsMust be 18+ and deposit at least $20; reward unlocked after trading $25
Last VerifiedSeptember 18, 2026

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Trade $25 and Get $25

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Is Kalshi Legal in Your State?

Kalshi is legal in 47 US states and Washington, D.C. It is unavailable in three states: Michigan, Nevada, and Washington, where regulators have challenged its sports event contracts.

Because Kalshi operates as a CFTC-regulated financial exchange rather than a traditional sportsbook, it lists contracts nationwide by default, and access closes only where a state regulator has actively restricted operations. That federal regulatory framework is why platform availability can shift faster than state-licensed gambling sites, so verify your home jurisdiction before funding your balance.

Disclaimer: State availability remains subject to ongoing regulatory proceedings and may change. Always confirm Kalshi's current status in your state before completing registration.

How to Claim the Kalshi Promo Code $25 Bonus

  1. Visit the official Kalshi site or download the iOS/Android mobile app.

  2. Click the registration button and enter your legal name, email address, date of birth, and home address.

  3. Input the Kalshi promo code WSN in the dedicated promotion code field during sign-up.

  4. Provide identity details required by federal compliance regulations for financial trading accounts.

  5. Add a minimum of $20 into your trading balance using an approved payment method, such as ACH bank transfer.

  6. Place $25 in event contract trades on any active markets, including the Fire vs. Valkyries game, to automatically receive the $25 trading bonus.

Need more info? Read our Kalshi Review to learn more.

Featured Matchup: Portland Fire vs. Golden State Valkyries

The Golden State Valkyries (29-11) host the Portland Fire (16-25) at Chase Center in San Francisco. Golden State enters this matchup riding a strong four-game winning streak and holding a dominant position near the top of the league standings. In their previous meeting on August 30, 2026, the Valkyries secured an 86-69 victory powered by strong multi-point efforts from guard Tiffany Hayes (18 points) and forward Kayla Thornton (17 points).

The Portland Fire look to counter with key offensive contributions from scoring leader Carla Leite and frontcourt presence Emily Engstler. The Valkyries have consistently controlled tempo at home, but Portland's perimeter shooting makes contract markets around total game points particularly dynamic for traders analyzing probability shifts.

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Today's Markets for Fire vs. Valkyries (September 18, 2026)

Market prices on Kalshi fluctuate between $0.01 and $0.99 per share based on crowd consensus and live probability. Holding a winning contract settles at $1.00 per share, while an incorrect position settles at $0.00.

Contract Market"YES" Share Price"NO" Share PriceImplied Probability
Golden State Valkyries to Win$0.78$0.2278%
Portland Fire to Win$0.23$0.7723%
Total Points Over 162.5$0.52$0.4852%
Valkyries Win by 8+ Points$0.61$0.3961%

Note: Market prices change continuously based on trading activity.

Use Kalshi Promo Code WSN and Get $25

How to Watch Fire vs. Valkyries

  • Date: Friday, September 18, 2026

  • Tip-Off Time: 10:00 PM ET / 7:00 PM PT

  • Venue: Chase Center, San Francisco, CA

  • TV Broadcast: Local Regional Sports Networks / WNBA League Pass

  • Live Streaming: Fubo, WNBA League Pass

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Responsible Risk Management

Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com/tc/500. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.

Zack Lane WSN Contributor

Zack Lane

Sports Betting Analyst

Expertise:
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Zack is a lifelong football fan and writer from the UK, with a Master’s in Creative Writing from the University of East Anglia. He’s followed Aston Villa through thick and thin and now channels that passion into sharp, insightful sports writing. He specialises in soccer betting content and match previews, with experience covering sportsbooks and casino platforms.
Email: zack.lane@wsn.com
Nationality: British
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