Anyone know if professional sports bettors / handicappers actually exist? It seems that these people might have the same mentality as a typical trader, crunching data to search for statistical edges. Are there any websites out there that offer the kind of easily searchable extensive sports statistics that one might need to find an edge? Seems like a pro sports bettor would need more anomalous data like how a baseball team plays in certain weather conditions or something out of the ordinary like that.