when are baseball games cancelled due to rain
Rainout (sports) Generally, Major League Baseball (MLB) teams will continue play in light to moderate rain but will suspend play if it is raining heavily or if there is standing water on the field. Games can also be delayed or canceled for other forms of inclement weather, or if the field is found to be unfit for play, and for other unusual causes such as bee swarms. Bee delays and cancellations have occurred in games such as the spring training game in 2005 that was canceled,[2] as well as the 2009 Houston Astros-San Diego Padres game that was delayed in the ninth inning.[3] However, rain is by far the most common cause for cancellations or stoppages of play. In case of rain out after the game has begun but before it is official, a rain check is issued; this dates to the 1870s, but did not become widespread until the 20th century.
Opening Day Major League Baseball had most of its teams open the 2011 season on a Thursday (March 31) or Friday (April 1) rather than the traditional Monday, in order to prevent the World Series from extending into November.[23] Similarly, most teams opened the 2012 season on Thursday (April 5) or Friday (April 6). However, subsequent seasons through 2017 returned to Monday openers for most teams. For the 2018 season, all 30 teams were scheduled to open the season on Thursday, March 29 (the earliest domestic start for a regular season in MLB history, and the first time since 1968 that all major league teams were scheduled to start the season on the same day, although two games were subsequently rained out and postponed to Friday, March 30).[24]