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