Here is a link to an article in The Washington Post by Andrew Beyer about the giant Pick 6 payoff at Palm Beach Jai-alai in 1983. This gambling syndicate was coordinated by J. Randy Gallo at the time and the partners were all professional gamblers, mostly specializing in Jai-alai trifecta and Pick 6 wagering.
Beyer, well known in the horse racing industry, gets several things wrong with this article. He mentions “Nor does jai-alai lend itself to intelligent handicapping the way horse racing does,” which couldn’t be farther from the truth, if he knew anything about Jai-alai. In addition, he stated “the outcome of a game is almost a random event.”