Polymarket Market Rule Change Log
Last verified: 2026-07-09 PDT
Prediction markets are not just prices. They are contracts around exact words: question text, deadlines, resolution sources, cancellation clauses, edge cases, and final settlement rules. If those words change or if your understanding of them changes, your research record needs to show it.
This page is educational research content. It explains source tracking, evidence notes, and rule-review discipline. It does not tell you what to trade.
Key concepts in plain English
- ▸Market question: the exact yes/no claim being priced.
- ▸Resolution description: the rule text explaining how the outcome is decided.
- ▸Resolution source: the official or primary source used to settle the market.
- ▸Deadline: the time window after which the question is evaluated or closed.
- ▸Rule snapshot: a saved copy of the question, description, source, and timestamp.
- ▸Change log: a dated record of what changed, what was checked, and what needs review.
Why rule logs matter
A Polymarket page can contain more than a title. Active market samples reviewed through the Gamma API showed descriptions with official source references, cancellation clauses, deadline language, ranking-source instructions, and event-specific resolution conditions.
Example fields that can change your interpretation:
| Field | Why it matters |
|---|---|
| Exact question | Defines what Yes and No actually mean |
| Source hierarchy | Tells you which source controls resolution |
| Deadline | Defines when the event is judged |
| Cancellation clause | Defines special cases |
| Market grouping | Affects multi-outcome and negative-risk context |
If you only record "I liked Yes at 48¢," you have a weak research record. If you record the rule text, source, deadline, and price at the same timestamp, you can review your process later.
The Bucko-style change log template
Copy this format into your research notes:
Market:
URL:
Condition ID:
Question copied exactly:
Resolution text copied or summarized:
Primary source:
Deadline / end date:
Current Yes price:
Bid / ask / depth:
Screenshot saved? yes/no
Change observed:
Research impact:
Next review time:
The goal is not paperwork for its own sake. The goal is to avoid arguing with memory after the market moves.
What to log before taking a market seriously
- ▸Copy the full question.
- ▸Save the full resolution description.
- ▸Save the source link or source instructions.
- ▸Record the deadline and timezone if stated.
- ▸Record whether the market is part of a multi-outcome event.
- ▸Record Yes and No prices plus spread and depth.
- ▸Save a screenshot or archive note when the market is important.
- ▸Write the reason your probability estimate differs from the market price.
Common mistakes
- ▸Reading only the title and skipping the description.
- ▸Treating two similar markets as identical when the source or deadline differs.
- ▸Forgetting that event markets can include special cancellation or fallback language.
- ▸Saving price without saving the rule text behind that price.
- ▸Letting a social post replace the official market source hierarchy.
Internal review framework
Use three labels:
- ▸Clean: rule text, source, and deadline are clear enough for your research notes.
- ▸Needs review: wording is ambiguous, source hierarchy is unclear, or the deadline needs confirmation.
- ▸Blocked: you cannot verify the rule, source, eligibility, or settlement logic well enough to rely on the page.
Blocked is a useful answer. It keeps the workflow honest.
Where Bucko fits
Bucko can act as the research notebook around Polymarket markets: rule snapshots, source links, timestamps, price notes, user-defined guardrails, and post-resolution reviews. Treat it as a process layer, not an outcome predictor.
If you are eligible for the US app offer, use code BUCKO for a $50 deposit bonus on the Polymarket US app: https://www.poly.market/BUCKO. Confirm current app screens and offer terms before depositing.
Internal links
- ▸Resolution evidence: Polymarket resolution evidence template
- ▸Market rules: Polymarket market rules checklist
- ▸Source hierarchy: Polymarket source hierarchy guide
Sources and last-verified notes
Last verified: 2026-07-09 PDT.
Sources reviewed: Polymarket docs llms.txt and llms-full.txt; Polymarket Resolution and market metadata documentation; public Gamma API event and market samples checked on 2026-07-09 PDT with a browser user agent. Active examples included World Cup winner markets with FIFA-source language and app-ranking markets with Apple App Store chart instructions.