# Polymarket Sports and Esports: Esports Took 21.4% of the Money on the Thinnest Books

Publication scope revised on 28 October 2026; body SHA-256: `633564f63af0ab9d2eeee9d68a705280fc104e578be4e54fb4787b1917dfed23`.

The original selected arithmetic or conditional formulas are retained for the remaining Polymarket analysis. No new source observations or new formal-verification run are claimed.

- The market-family counts account for 7,001 markets. (`polymarket_sports_and_esports_markets_1`; arithmetic).
- In each displayed market family, the largest-wallet share is no greater than the top-five share. (`polymarket_sports_and_esports_markets_2`; arithmetic).
- Displayed LoL playoff markets values lie between 0 and 100 in crowds-chart. (`polymarket_sports_and_esports_markets_3`; displayed-value-domain).
- Displayed Fed contracts values lie between 0 and 100 in crowds-chart. (`polymarket_sports_and_esports_markets_4`; displayed-value-domain).
- Displayed Share of 24 h volume values lie between 0 and 100 in esports-out-traded-the-fed-chart. (`polymarket_sports_and_esports_markets_5`; displayed-value-domain).

Outside the proof:

- Authenticity, completeness and accuracy of source observations.
- Data collection, sampling, classification, bootstrap intervals and causal inference.
- Current prices, policy, legal status, allegations, product claims and future outcomes.
- Production code correctness, execution, available liquidity and profitability.

[Selected Lean calculations](../LibraryChecks.lean). [Mathematical definitions](../ResearchModels.lean). [About this public subset](../README.md).