NYTimes posted:

A recent study in Sports Business Daily found that over the first half of this year’s Major League Baseball season, 91 percent of daily fantasy sports player profits were won by just 1.3 percent of the players. In fact, on average, the top 11 players paid $2 million in entry fees and made profits of $135,000 each while accounting for 17 percent of all entry fees.

Many of those players use automated processes that let them change hundreds, if not thousands, of lineups in seconds, a decided advantage when last-minute changes are made in the real lineups of professional football, basketball or baseball teams.