A vantagem em casa no futebol: comparação entre Copa Libertadores da América e UEFA Champions League

O objetivo desse estudo foi comparar a vantagem em casa (VC) entre Copa Libertadores da America (CLA) e UEFA Champions League (UCL). Foram analisadas todas as partidas da fase de grupos (n = 1536) das temporadas 2004 a 2011. Para quantificar a VC, foi utilizada a metodologia de aproveitamento percentual de pontos proposta por POLLARD3, sendo considerado VC valores maiores que 50%. Houve diferenca significativa (p = 0,010) para a VC na CLA (67,8 ± 4%) em relacao a UCL (60,5 ± 5%). A magnitude das diferencas das medias (diferenca media = 0,73; IC 95%: 0,020 a 0,127) foi grande (h2 = 0,35). Conclui-se que a VC foi maior na CLA do que na UCL nas temporadas analisadas e que fatores como altitude, distância de viagem, caracteristica das torcidas e comportamento arbitral podera ajudar a explicar esse fenomeno em futuros estudos.

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