OpenChainBench
Full benchmark: Resolution delay, Polymarket vs Kalshi
TradingPolymarket — All

Polymarket resolution — all markets

As of September 17, 2026, Polymarket — All resolution delay is 54.7 min at the median (p50, 24h window), with 213.7 min at p90 and 238.6 min at p99. Polymarket — All ranks #5 of 7 chains measured on this benchmark.

All Polymarket markets combined, measured from first UMA ProposePrice to QuestionResolved on Polygon. The median is 54.7 min. Sports dominates volume; crypto runs fastest; politics carries conservative verification windows. p99 at 238.6 min reflects the long tail of disputes and postponed events.

How Polymarket — All compares

Live p50 over the last 24 hours across every chain on this benchmark, ranked lowest first.

  1. #1Kalshi — Sports5.7 min
  2. #2Polymarket — Crypto10.4 min
  3. #3Kalshi — All12.4 min
  4. #4Polymarket — Sports52.3 min
  5. #5Polymarket — All54.7 min
  6. #6Polymarket — Other148.0 min
  7. #7Polymarket — Politics182.0 min

Methodology, charts and the full ledger live on the Resolution delay, Polymarket vs Kalshi page. Raw data: JSON endpoint.