Cross-sport calibration scoreboard. Brier measures how close each
pick's probability was to the result, so lower is better; market Brier
does the same for the no-vig market price on the same picks. Lift is
model minus market, so negative means the model beat the market. Status:
calibrated if |lift| < 0.005,
watch if < 0.020,
action otherwise.
Cross-sport calibration scoreboard: N picks, model Brier, market Brier, lift, and calibration status per sport.