Underdog Exchange DCM Inc. v. Brown

Filed; no ruling9th Cir.Platform v. State

Docket last checked September 22, 2026. Snapshot — not legal advice.

As of September 25, 2026, Washington has a restriction on prediction-market platforms currently in effect. Washington status and cases →

Overview

Underdog’s exchange arm, Underdog Exchange DCM, Inc., filed this pre-enforcement suit on September 8, 2026, seeking a declaration that the Commodity Exchange Act preempts the state’s gambling law as applied to its sports event contracts, and an injunction against enforcement. It is one of six such suits Underdog filed in a week — Massachusetts, Ohio, Wisconsin, New Mexico and Washington on September 8, and Connecticut on September 15 — after the company surrendered its daily-fantasy licenses in several states. It drew Judge Thomas S. Zilly rather than Judge Coughenour, who has the three earlier platform suits against the same defendants, and it is the fourth such suit against Washington. No ruling. (Caption, docket and filing date confirmed via CourtListener; the description of the claims is press-sourced.)

Changes

Logged September 22, 2026

Timeline

September 8, 2026

Underdog Exchange DCM files a preemption suit for declaratory and injunctive relief.

What's next: Awaiting a responsive pleading. The three earlier platform suits against Washington are stayed or awaiting the Ninth Circuit.

Parties

Plaintiffs

  • Underdog Exchange DCM, Inc.

Defendants

  • Nicholas W. Brown (Washington Attorney General)
This page is informational, not legal advice. Nearly every entry in this tracker is a preliminary ruling under appeal. Always verify a platform's current, location-specific eligibility directly with the venue before relying on this page.