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