RuleDraft
A market can be priced perfectly and still die on a single ambiguous word. A $237M market settled on whether an outfit was a “suit.” A $204M market died on a confirmation that never came. Those weren't pricing mistakes — they were drafting mistakes, and 92% of the capital lost in 2026 sat in bespoke, hand-written contracts like the ones market makers write every day. Every case is in our public dispute database. RuleDraft closes those gaps before you list.
What “investment-grade” means
every documented failure mode, closed — before the market opens✓ A named primary source, bound to resolution
Not “credible reporting” or a bare “official source.” A specific, checkable record — the single strongest predictor of a clean settlement.
✓ Every operative term defined
“Suit,” “ceasefire,” “drop out,” “go live” — the undefined word is the single largest dispute bucket in the record. We define it before the market opens.
✓ Boundary, rounding, and the controlling print
At-or-above vs above, decimal handling, and whether the first figure or a later revision governs — the trap that has flipped nine-figure markets.
✓ Timezone, cutoff, and which clock runs
Event-time vs disclosure-time, a hard cutoff, and a stated timezone — the sharpest open trap in the asset class.
✓ Postponement, cancellation, and void handling
A void clause that actually fits the event — so a remade map or a called-off match resolves the way you intended, not the way a bot proposes.
✓ A structured dispute path
No unilateral “sole discretion” or “additional market context” language that lets the outcome be re-read after the fact.
Every RuleDraft contract ships RuleScore-graded to the clearest bands (target BR-Aaa / Minimal), with the flagged risks resolved and the SHA-256 of the exact text — so you can prove the contract's integrity to counterparties, partners, or a regulator, and anyone can reproduce the grade. The methodology is public.
Why the people who grade these contracts should write yours
expertise you can't get from a party with markets to defendWe built the rating
RuleScore is the only settlement-risk rating for prediction markets — BR-Aaa to BR-Ba, calibrated on the 2026 dispute census of 1,595 disputed markets. We know exactly which language settles cleanly because we measured it.
We keep the record
The only coded dispute database — every material way a prediction-market contract has broken, with sources. RuleDraft is that catalogue applied to your rules, in reverse.
We wrote it to the regulator
Brierly filed the settlement-integrity comment to the CFTC's 2026 prediction-markets proposal, grounded entirely in that record. We argue this standard on the public docket — then draft to it.
How it works
from a market idea to a contract built not to breakThe question, the event, the source
Send the contract you want to list — a rough question, a draft rulebook, or just the idea and the resolution source you have in mind. One market or a whole listing slate.
Investment-grade language, RuleScore-verified
Our team writes the full resolution language — source, definitions, boundaries, timing, void handling, dispute path — and grades it with RuleScore until it reaches the clearest bands. You get the contract, the flagged risks we closed, and the reproducibility receipt.
Defensible, reproducible, built to settle
List a contract whose settlement is bound to a checkable record and whose grade anyone can verify. Fewer disputes, less frozen capital, a cleaner book — and an integrity story you can show counterparties and counsel.
Engagements
scoped privately · everything under NDA- One market drafted or re-papered to investment-grade
- RuleScore grade + SHA-256 receipt
- The flagged failure modes, closed and documented
- Turnaround in days
- A batch — a season, a category, or a launch slate
- A reusable house drafting standard for your desk
- Every contract graded, with a summary risk exhibit
- Priority turnaround
- Ongoing drafting partner for a high-volume operator
- Rules reviewed and graded before every listing
- A standing settlement-integrity standard for your book
- Direct line to the team
Book a consultation
Tell us your firm and what you're listing — this routes straight to our team, not a generic list. We'll come back with how RuleDraft would fit and what it takes. No obligation, everything confidential.
Prefer email? Write to founders@brierlyresearch.com — a founder will reply directly.
See the risk yourself, first
Paste your own draft rules into the Draft-Rules Grader — the published RuleScore rubric runs in your browser, nothing is uploaded, and it shows exactly where a contract is exposed. Then let us take it the rest of the way to investment-grade.
Independent by design
Brierly has no listings and takes no position on any market's outcome — so the language we write serves settlement integrity, not a book we're defending. Grades are produced under a published methodology; engagements are confidential.