Football · 2026

Biggest Historical Upsets

Final games ranked by the winning team’s valid stored pregame or chronological backtest probability. Scores are home–away. Backtests are retrospective analytics, not live picks.

2026-10-30Stored pregame

Brookings-Harbor

Douglas

Final 44–6215.8% · Brookings-Harbor

2026-10-30Stored pregame

Grants Pass

Central Catholic

Final 16–1026.1% · Central Catholic

2026-10-30Stored pregame

Willamette

Sheldon

Final 30–2735.9% · Sheldon

2026-10-30Stored pregame

Marshfield

North Bend

Final 48–741.4% · North Bend

2026-10-30Stored pregame

Lincoln

Ida B. Wells

Final 38–2347.0% · Ida B. Wells

Upset board5 games

Date	Match	Final	Underdog winner	Pregame chance	Source
2026-10-30	Brookings-Harbor at Douglas	44–62	Brookings-Harbor	15.8%	Stored pregame
2026-10-30	Grants Pass at Central Catholic	16–10	Central Catholic	26.1%	Stored pregame
2026-10-30	Willamette at Sheldon	30–27	Sheldon	35.9%	Stored pregame
2026-10-30	Marshfield at North Bend	48–7	North Bend	41.4%	Stored pregame
2026-10-30	Lincoln at Ida B. Wells	38–23	Ida B. Wells	47.0%	Stored pregame