Marginal lean based on 57/51 implied probability split across 1 books. The edge is thin but the math tilts slightly in this direction.

Combat sports produce some of the widest odds differentials — a 57/51 split means the market sees a competitive fight where the underdog has real paths to victory. The -105 best available on Roman Szymanski is relatively tight for a dog in this sport.

Overround at 8.7% means books are taking a large cut — 4.3% per side on average. Factor in the vig before sizing this bet; the true edge is narrower than the raw numbers suggest.