Who is predicted to win Chicago Cubs vs Boston Red Sox? Our blended model makes Chicago Cubs the favorite at 51% for September 27, 2026. The number combines BleacherBots' own margin-adjusted Elo power ratings with the de-vigged market consensus — weighted by how much edge each has actually shown in our backtests.
Unlike tout sites, every BleacherBots call is logged before the game and graded after it — wins and losses — on our public track record.