Brierly helps prediction markets settle cleanly.
RuleScore rates standalone live Kalshi and Polymarket contracts whose operative rules can be retrieved, RuleReview tests proposed language before listing, and RuleDraft helps professional teams write clearer resolution terms. Market News covers the disputes and market developments that shape the work.
What Brierly is
four connected offerings, one settlement-risk focusSee RuleReview work
your draft stays in this browserThe text is transferred through session storage—not a URL, analytics event, server log, or third-party service.
Before a market lists
RuleReview applies the same deterministic language rubric used by RuleScore. It highlights settlement hazards, explains them in plain language, and shows where a binding source, definition, boundary, cutoff, or contingency clause can reduce ambiguity.
- Entirely client-side processing
- No pasted language sent to Brierly or analytics
- Same normalized rating input produces the same review
- Professional drafting help available through RuleDraft
The settlement-risk problem
rules govern the settlementReality is not enough
A real-world event can seem obvious while the contract still turns on an undefined word, an unbound source, or the wrong clock. Markets settle according to written rules.
Ambiguity is costly
Brierly's generated 2026 census contains 1,595 disputed-market records. Brierly classifies 80 records as hard-failure outcomes: 44 resolved 50/50 and 36 escalated overturns. The curated case studies document high-signal examples and their sources.
Risk can be found earlier
The methodology was calibrated against a historical disputed-market corpus and a never-disputed control sample. It is deterministic, reproducible, and explicit about its limits.
One workflow, from evidence to listing
RuleScore rates live contracts
Traders, market makers, funds, and risk teams can evaluate the risk that settlement becomes ambiguous or disputed.
RuleReview tests draft language
Exchange, operator, product, market-operations, compliance, and legal teams can find drafting hazards before listing.
RuleDraft improves the rules
Brierly drafts or redlines resolution language and reviews the final text against RuleScore. It is not legal advice.
Start with the contract
Explore live ratings, review a draft privately, or contact Brierly about a professional RuleDraft engagement.