Polymarket Range Markets Guide
Last verified: 2026-06-29 PDT
Polymarket range markets turn one event into brackets. Instead of only “Yes or No,” the market may ask whether a number lands in a certain range: a price level, count, vote share, ranking, temperature, sales figure, or economic release.
The core skill is not guessing the bracket. The core skill is reading the boundaries and understanding how prices map to mutually exclusive outcomes.
Key definitions in plain English
- ▸Range market: a market where outcomes are brackets, such as 0-24, 25-49, 50-74, and 75+.
- ▸Threshold: the cutoff that separates one outcome from another.
- ▸Boundary rule: how the market treats exact numbers, decimals, ties, revisions, or source updates.
- ▸Mutually exclusive outcomes: only one outcome can resolve true.
- ▸Implied probability: a 32 cent outcome is roughly a 32% market-implied probability before fees, spread, and liquidity issues.
The math example
Imagine a range market with four outcomes:
- ▸Under 25: 18 cents
- ▸25 to 49: 34 cents
- ▸50 to 74: 31 cents
- ▸75 or more: 17 cents
Those prices roughly add to 100 cents. That does not mean the market is perfectly priced. It means traders are distributing probability across brackets. Your job as a researcher is to ask whether the bracket definitions, source timing, and uncertainty are clear enough to analyze.
The boundary checklist
Before interpreting a range market, answer these questions:
- ▸What number is being measured?
- ▸Which source publishes the number?
- ▸What exact timestamp or deadline matters?
- ▸Are decimals rounded or used directly?
- ▸Does an exact boundary number count in the lower or upper bracket?
- ▸Are revisions included or ignored?
- ▸What happens if the source is delayed, canceled, or changed?
If those answers are unclear, treat the market as higher process risk.
Common range-market categories
Range mechanics show up across sports, economics, crypto, weather, politics, entertainment, technology, and social-media markets. Examples include point totals, CPI prints, price ranges, app rankings, word counts, box-office totals, vote shares, and leaderboard scores.
The content category changes. The mechanics stay similar: read the bracket, source, deadline, and boundary.
Common mistakes
- ▸Only reading the headline. The boundary rule usually lives in the details.
- ▸Adding probabilities without checking exclusivity. Some market structures are not simple one-winner brackets.
- ▸Ignoring the “Other” bucket. Other can hide a lot of tail risk.
- ▸Forgetting source revisions. Economic and official data can have update rules.
- ▸Treating price as certainty. A 70 cent outcome can still resolve false.
Bucko range-market worksheet
Use Bucko to save the market question, source link, bracket table, boundary notes, price snapshot, spread/depth screenshot, research links, and post-resolution lesson. The goal is better process, not outcome promises.
Polymarket CTA
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 eligibility, app screens, and offer terms before depositing.
Sources and last-verified notes
- ▸Polymarket docs checked 2026-06-29 PDT: Trading API overview, order API documentation, authentication documentation, and market data overview at docs.polymarket.com.
- ▸Polymarket Gamma public-search/API samples checked 2026-06-29 PDT for active range, leaderboard, macro, sports, and event market structures.
- ▸Bucko/Polymarket partner offer wording is user-provided: code BUCKO, $50 deposit bonus for eligible U.S. app downloads, https://www.poly.market/BUCKO. No newer official affiliate term sheet was independently located during this run.