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We present a comparison of the computation of energy-energy correlation in$e^{+}e^{-}$ collisions in the back-to-back region at next-to-next-to-leadinglogarithmic accuracy matched with the next-to-next-to-leading orderperturbative prediction to LEP, PEP, PETRA, SLC and TRISTAN data. With thesepredictions we perform an extraction of the strong coupling constant takinginto account non-perturbative effects modelled with Monte Carlo eventgenerators. The final result at NNLO+NNLL precision is$\alpha_{S}(M_{Z})=0.11750\pm 0.00018 {\text( exp.)}\pm0.00102{\text(hadr.)}\pm0.00257{\text(ren.)}\pm 0.00078{\text(res.)}$.

Precise determination of $\alpha_{S}(M_Z)$ from a global fit of energy-energy correlation to NNLO+NNLL predictions