Compression and TRJ. With an optimal TRJ of 99.5%, the market displays extremely tight margins overall. Individual TRJs range from 91.9% (LeoVegas SE) to 99.5% (Betfair and Matchbook), indicating fragmentation: French and Scandinavian books offer higher margins (92–93%), while platforms like Betfair, Matchbook, and 1xBet approach theoretical equilibrium. Pinnacle displays 96.8%, positioning the house as a moderate-margin operator.
Value and optimal odds. Betfair is the only bookmaker offering odds above the Pinnacle fair odd on Valencia (2.94 vs 2.89 reference), generating potential value of +1.6%. On the draw and away victory, Betfair also leads the display (3.40 and 2.70), making it the most generous book overall. French bookmakers (Winamax, Betclic, Unibet FR, PMU, William Hill) concentrate the lowest odds, notably on Valencia (2.70–2.75) and Real Betis (2.45–2.55), reflecting margins above 92%.
Strategy and recommendations. The value detected on Valencia at Betfair remains marginal (1.6%), which guarantees no long-term return on a single bet. For bettors interested in a multi-book approach, the Surebet or TRJ tool can confirm that assembling the best odds (2.94 / 3.40 / 2.70) offers an optimal TRJ of 99.5%: a very fine opportunity, but without guarantee, as odds fluctuate rapidly. For French players, priority is avoiding high-margin books (Winamax, PMU, William Hill) in favor of Betclic or Codere. CalculaBet calculators (Value Bet and TRJ) will allow real-time verification of these spreads.