Nanjing Challenger Doubles page help: Odds Portal lists all upcoming Nanjing Challenger Doubles tennis matches played in China. "B's" column indicates number of bookmakers offering Nanjing Challenger Doubles betting odds on a specific tennis match. Columns 1, X and 2 serve for average/biggest Nanjing Challenger Doubles betting odds offered on home team to win, draw and away team to win the Nanjing Challenger Doubles match. The top line of upcoming matches table (Tennis - China - Nanjing Challenger Doubles) lets you click-through to higher categories of Odds Portal betting odds comparison service.