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Train NAIL-RAPM v1.2.1.1 Standard USG%

This release replaces the internal usage-events-per-on-court-possession rate with conventional, box-score USG% in the additive player profile and usage_concentration context term.

Full Recursive Fit

uv run nba-train-nail-v1211-standard-usage \
  --through-season 2025-26 \
  --log-path artifacts/logs/nail-v1211-standard-usage.log

Monitor it with:

tail -f artifacts/logs/nail-v1211-standard-usage.log

Frozen Replay And Bootstrap

uv run nba-backtest-nail-v1211-standard-usage \
  --log-path artifacts/logs/nail-v1211-standard-usage-frozen.log

uv run nba-bootstrap-nail-v1211-standard-usage

The recursive fit is not itself evidence of predictive improvement. Add the candidate to the leaderboard only after the frozen replay and paired bootstrap have completed.