This market resolved "Mauricio Ruffy" on 2026-06-15, verified on-chain against Polymarket's settlement — the rex engine called it correctly.
On 2026-06-13, the rex engine's sprint screen flagged this market and took "Mauricio Ruffy" at 84¢ — the market was pricing that outcome at 84%, so a correct call would pay 1.20× the stake. 2.0 days later the market resolved on-chain, and the position settled as a win: +$6.02 on a $30 stake.
sprint is one of the engine's ground-truth strategies: across 97 out-of-sample historical positions it hit 78.4% (95% CI 69.2–85.5%), a +3.8-point edge over the market's implied odds, returning +5.1% per bet. This position was sized with fractional Kelly from those numbers — not from a hunch.
One win proves nothing — that's the point of publishing all of them. This verdict is one row in a forward ledger that only ever grows, where the hit rate is computed over every settled position, losses included.
Paper-trading position settled against the gamma-api resolved outcome. This page was minted automatically when the market resolved and regenerates from the engine's ledger. Past performance does not guarantee future results. Not financial advice.