Flamsteed point-in-time forecast archive — 2026 FIFA World Cup (24 dated snapshots)

Point-in-time forecast archive for the 2026 FIFA World Cup, produced by Flamsteed, a Bayesian scoreline model with a 20,000-draw Monte-Carlo tournament simulator. Each snapshot is a strict as-of read: a result is visible only if it was knowable at that instant. The system ran the tournament wire-to-wire with zero leakage violations; its full scorecard, including where it did no better than a plain Elo baseline, is published alongside the code. Files are named antecast-archive-wc2026 because Antecast was the project's name when this archive was deposited on 28 July 2026. It was renamed Flamsteed on 10 August 2026. The data is unchanged. Code and methodology: https://flamsteed.io and github.com/onbiggerthingsB/FLAMSTEED