Recent CFTC advisory guidance and a June 2026 proposed rulemaking have raised the bar for self-certification of sports event contracts by requiring pre-filing engagement with leagues, detailed Core Principle 3 manipulation analyses, and information-sharing agreements. CME Group completed its filings earlier, establishing precedent and driving its implied probability near certainty. Railbird and LedgerX maintain strong trader consensus above 78 percent amid streamlined multi-contract submission options, while Aristotle sits near even odds as platforms weigh compliance costs and CFTC stay risk. With only days until the June 30 resolution, any additional self-certifications or public statements from remaining DCMs could rapidly shift sentiment before the deadline.