<div><img width="300" height="200" src="https://readwrite.com/wp-content/uploads/2026/08/Aristotle-exchange-companies-sue-Underdog-and-CEO-over-acquisition-dispute-deal-300x200.png" class="attachment-medium size-medium wp-post-image" alt="Underdog Sports logo alongside Lady Justice holding scales, illustrating the lawsuit over its Aristotle exchange acquisition. Underdog challenges state prediction market enforcement lawsuits" style="width:100%;height:66.67%;max-width:1200px;margin-bottom: 15px;" decoding="async" fetchpriority="high" srcset="https://readwrite.com/wp-content/uploads/2026/08/Aristotle-exchange-companies-sue-Underdog-and-CEO-over-acquisition-dispute-deal-300x200.png 300w, https://readwrite.com/wp-content/uploads/2026/08/Aristotle-exchange-companies-sue-Underdog-and-CEO-over-acquisition-dispute-deal-900x600.png 900w, https://readwrite.com/wp-content/uploads/2026/08/Aristotle-exchange-companies-sue-Underdog-and-CEO-over-acquisition-dispute-deal-240x160.png 240w, https://readwrite.com/wp-content/uploads/2026/08/Aristotle-exchange-companies-sue-Underdog-and-CEO-over-acquisition-dispute-deal.png 1200w" sizes="(max-width: 300px) 100vw, 300px" /></div>
<p>Underdog Exchange DCM, Inc. and UDM, LLC, which does business as Underdog Predict, have taken regulators in Ohio, Massachusetts, and&#8230; <a class="more-link" href="https://readwrite.com/underdog-sues-ohio-massachusetts-wisconsin-prediction-market/">Continue reading <span class="screen-reader-text">Underdog sues Ohio, Massachusetts, and Wisconsin as prediction market fight deepens</span></a></p>
<p>The post <a href="https://readwrite.com/underdog-sues-ohio-massachusetts-wisconsin-prediction-market/">Underdog sues Ohio, Massachusetts, and Wisconsin as prediction market fight deepens</a> appeared first on <a href="https://readwrite.com">ReadWrite</a>.</p>