Coverage and accuracy

How much each city holds, how fresh it is, and how it measures up when we check it against the sources and the live listings. Every event on every city site links to its original listing.

22,624 upcoming events across 3 cities. Each city’s own page lists its sources, freshness and audit details.

Per city. Recall = share of events the sources themselves list that we hold (sources we can re-read in full). Accuracy = share of sampled events whose original listing was live and matched.
City	Events	Sources	Newest fetch	Recall	Accuracy
Boston	12,039	28	2026-10-11	98.1%	96.2%
Honolulu	2,458	13	2026-10-14	100.0%	100.0%
Philadelphia	8,127	66	2026-10-15	99.5%	not measured