More than 70 million fans will attend Major League Baseball games for the first time in six years, a post-pandemic rebound for a sport that instituted its biggest on-field changes in decades.

A pitch clock to speed play -- game times are down 24 minutes to 2:40 for nine innings this season -- limits on defensive shifts to increase offense, new social spaces at ballparks and technology innovations to speed entry have factored into a 9.2% rise in average attendance to 29,176. Expanding the playoffs to 12 teams, which began last year, led to more than half the teams remaining in mathematical contention.