The Impact of Social Networks on Sports -- Application of Income Approach for Valuation of Football Club -- The Interesting Case of Portugal in the Economy of Sport -- Senior Sport Tourism in Russia -- Evaluation in Sports Performance -- Pythagoras at the Bat -- Adaptive Systems in Sports -- By Sport Predictions Through Socio Economic Factors and Traditions in Summer Olympic Games: the Case of London 2012 -- Soccer Analytics Using Touch-by-touch Match Data -- The Golf Director Problem: Forming Teams for Club Golf Competitions. $x This book presents recent research developments in social networks, economics, management, marketing and optimization applied to sports. The volume will be of interest to students, researchers, managers from sports, policy makers and as well athletes. In particular the book contains research papers and reviews addressing the following issues: social network tools for player selection, movement and pricing in team sports, methods for ranking teams and evaluating players' performance, economics and marketing issues related to sports clubs, techniques for predicting outcomes of sports competitions, optimal strategies in sports, scheduling and managing sports tournaments, optimal referee assignment techniques and the economics and marketing of sports entertainment.