Our model's win probability vs. the market's implied probability. The gap is the edge.
Every factor that moved the model. Every number sourced — no hallucinations.
Supreme Brain assigns Atlanta -1.5 a 50.0% win probability against St. Louis at +140 odds, creating a +5.0% expected-value edge over the market-implied 50.0% probability. The model sizes this to a 0.14-unit quarter-Kelly stake despite Atlanta carrying 14 players on the injury report compared to St. Louis's three. The runline bet requires a multi-run margin; single-run Atlanta wins—the most common outcome in baseball—kill the ticket entirely. At plus-money, you're getting paid to take variance risk on a coin flip the market has slightly underpriced. The edge is modest but real, assuming Atlanta's depleted roster can generate separation late rather than grinding out a one-run nail-biter.
Supreme Brain assigns Atlanta -1.5 a 50.0% win probability at +140 odds, a hair above the market-implied 50.0% at that price. The edge is thin—+5.0% expected value—but real enough to warrant a quarter-Kelly stake of 0.14 units.
This is a bet on Atlanta winning by multiple runs in a game the model sees as a pure coin flip, priced just favorably enough to justify exposure at plus-money.
Single-run wins kill the runline, and they're the most common outcome in baseball. If Atlanta scratches across one more run than St. Louis and holds on, you lose the same as if they'd been blown out. The model's 50.0% probability includes all Atlanta wins; the subset that clear two runs is necessarily smaller. A late Cardinals rally that makes it 5-4 Braves in the ninth turns a winner into a loser, and there's no model output here that quantifies how often Atlanta wins by exactly one.
At +140, you're betting Atlanta doesn't just win—they win with room to spare. The model says the market underpriced that scenario by five cents on the dollar, and the quarter-Kelly stake reflects exactly how much confidence that buys.