Research note

Can international-tournament StatsBomb signals beat the club-derived baseline?

Status: Complete — A1 + B1 run on the 8-walk / 90-day harness (snapshot 2026-05-28). Verdict: **neither ships.** B1 fails its gate outright; A1's gate "passes" but on an extremization artefact, not a keeper-skill signal. See the Results section at the endTopline + full note · 2,474 words

Topline

PR #525 + PR #532 produced two new per-team signals extracted from StatsBomb open event data across WC 2018/2022, Euro 2020/2024, Copa America 2024, AFCON 2023:

intl_gk_psxg.csv — per-team shot-stopping signal: on-target pre-shot xG faced vs goals conceded, summed across the 6 covered tournaments. - intl_set_piece_conv.csv — per-team set-piece efficiency: xG generated from corners + attacking-half free kicks, normalised per opportunity.

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