Source default lead four times coefficient four point six adds eighteen point four to baseline fifty, giving sixty-eight point four. Bars compare baseline and this intermediate at eight pixels per percentage point. This unvalidated formula does not establish real win probability or verified game history. Saved possession branch adds three if Giants receive, otherwise subtracts three. Same four-point lead gives seventy-one point four or sixty-five point four. Bars share zero at eight pixels per percentage point. Difference six comes from this sign choice, not a measured causal effect. Hypothetical fourteen-point lead gives fifty plus sixty-four point four plus three, one hundred seventeen point four before source clamp. Final output is capped ninety-six point five. Bars compare unclamped and capped numbers at four pixels per percentage point. Complete native JSON plus actual full PNG download and reset are checked; prediction and source event claims remain unproved.