Major League Baseball games are still getting longer – a slow drip that figures to increase the likelihood strong action will be taken to curtail the trend. After another slate of nine-inning odysseys on Monday, the average time of game has hit 3 hours, 5 minutes, which would be an all-time high by three minutes for a full season, and a 3% increase from 2016’s average nine-inning game - an even 3 hours. 1  Including extra-inning games, the average game time is 3 hours, 9 minutes. Both numbers trump all-time highs of 3:02 and 3:07, both set in 2014, according to data gathered by Baseball-Reference. As the weather warms and home runs – also headed for an all-time high – continue flying out of the park, games are getting longer.