Nick Sortal

After a huge U.S. Supreme Court decision today, gambling on sports might be legal in some states in time for this fall’s NFL season. But Florida won't be one of them.

Jane Seo blazed across the finish line at last weekend's Fort Lauderdale Half Marathon with a stellar time of 1 hour 21 minutes. The professional New York food blogger's blistering 6:15-per-mile pace earned her second place among the thousands who raced. Seo paraded around the finish line while grinning and gripping a gaudy medal.

Florida legislators have long fought efforts to expand gambling. But apparently, their steadfast morals vanish when it comes to daily fantasy sports websites such as the controversial FanDuel and DraftKings. Once again, a lawmaker has filed a bill to make daily fantasy sports sites – in which people bet real money on real athletes in real time – fully exempt from state gambling regulations.

In Florida, Atlantic City, and Las Vegas, T.J. Shulman has won almost a half-million dollars in poker tournaments. One day this past August, the talkative Boca Raton pro sat beneath a wall of TVs that brightened Hialeah Park's poker room. He saw dollar signs in the eyes of the players...