Pennsylvania sports betting is getting big in a hurry — hitting almost $200 million in wagers last month — thanks to the advent of online gambling and the start of football season. And FanDuel Sportsbook has quickly established itself as the brand to beat in the PA sports betting.

So just how many people are betting on sports in legal markets? We know how much money people are betting — it’s a lot of betting in states like New Jersey. But we don’t much about how many people are betting.

Monthly NJ sports betting handle and revenue continue to deliver eye-popping numbers but do not yet challenge Nevada‘s best September. New Jersey sports betting handle climbed to a monthly record of more than $445 million in September 2019. Revenue shot up to nearly $38 million as well, a strong hold of more than 8.5%.

For the past several decades, professional and amateur sports leagues in the United States have told Americans and policymakers that the biggest potential threat to the integrity of their competitions is sports betting.

Purdue University’s Board of Trustees adopted a new sports wagering policy last week that applies to faculty, staff, and non-student athletes. The legality of that policy at a public institution remains an open question.