Polymarket Esports Order-Book Slice (LoL + CS2)

Historical Polymarket LoL and CS2 quotes and L2 depth. Dated Parquet download with selection note and coverage map.

Full schema & known gaps →· Sold as-is — but if a file is broken or won't open, email [email protected] and we'll send a fixed file or refund you. No hassle.

Inspect the free sample rows and schemas before buying.

Artifact vintage: the product page and shipped documentation state the exact coverage, row counts and known limitations. A purchase delivers the advertised frozen artifact; no future refresh is promised unless the checkout terms explicitly say so.

Season scope not verified Observed partial coverage

A competition season has not been verified for this archive. This is not a complete-season archive.

Book samples:
2026-03-28T17:36:32Z → 2026-10-03T23:59:21Z
Artifact vintage:
2026-03-28 → 2026-10-03

UTC timestamps retain their recorded precision; dates alone identify UTC days. Vintage, observation and sports event times are separate. Capture time does not establish exchange quote freshness.

Sports event starts: start unknown → end unknown. Event dates are not inferred from these quote capture windows.

Coverage qualifications
  • Collection tags describe the declared product scope; exact fixture-season assignment is unverified.
  • Coverage of other competitions or editions is unassigned; this filter does not partition or verify individual rows.
  • No season scope declared in the archive manifest
  • Complete-season fixture denominator has not been verified

Why the capture contract matters

Venue APIs expose useful live books, trades and price history, but they do not serve the same historical snapshot and game-context archive packaged here. Data that was not recorded during the live window cannot be recreated from a current-book endpoint later. The exact fields, cadence, venue coverage and limitations vary by product, so this page and the shipped documentation state the contract explicitly instead of calling every file complete or tick-level.

What's in the dataset

Dated snapshot: 131,282,906 depth rows · 281,297,022 total rows · book samples 2026-03-28T17:36:32Z through 2026-10-03T23:59:21Z · artifact vintage 2026-10-03; separate from observation times

Research uses for this dataset

Map-by-map repricing

Follow how LoL and CS2 match and map books reprice through a series.

Derivative ladders

Study map totals and other derivative markets whose segment and line the recorder parsed.

See the real rows before you buy

We publish real sample rows — not a marketing mockup. Load them in DuckDB, inspect the schema and coverage contract, then decide.

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