Seattle Mariners games typically last a little less than three hours on average. Nine-inning games generally wrap up around the 2 hours 40 minutes to 3 hours mark, but game length can vary significantly based on pitching speed, scoring, and whether the game goes into extra innings. Some games may last close to four hours or more if there are many runs or extra innings. Since the introduction of the pitch clock in MLB, the average game time across the league, including Mariners games, has decreased to about 2 hours and 40 minutes. However, specific game length can still vary depending on various in- game factors. Extra-inning games may push the duration to around 3.5 to 4 hours or more.