Minor leagues under the major leagues, which were canceled due to the influence of the new Corona last season, started in various parts of the United States on the 4th, and some new "automatic referees" that judge strikes and balls with a computer have been introduced. Rules have been adopted.

The minor league started for the first time in two seasons due to the influence of the new Corona, and players aiming for the major league faced official games since September 2019 in various parts of the United States on the 4th.



In Texas, Shogo Akiyama of Reds, who was on the list of injured people with a left thigh injury in March, made a full appearance in the 3A team under the umbrella to return to the major leagues.



In the minor league, the total number of teams has decreased by 40 this season to 120 teams in total, and 30 major league baseball teams each have 4 teams under their control.



Some new rules that are not in the major leagues have been adopted, and from this season, some of the lower leagues of 1A, where the league has been divided into two, have introduced "automatic referees" that judge strikes and balls with a computer. , Has become a hot topic.



It is a system that instantly judges whether it is a strike or a ball with multiple cameras installed in the stadium. In the game on the 4th, a ball umpire wearing earphones listened to the system's judgment and made a strike call.



In addition, in 3A, the size of the base increases by 7.6 cm per side, and it is expected that the number of stolen bases will increase by preventing injuries on the base and shortening the distance between the bases.



In addition, 2A will also begin to limit defensive shifts.



In the major leagues, we have tried new rules such as tie-breaking in the extension in advance in the minor leagues to verify the effect, and then decided whether to introduce it in the major leagues, and this rule change will also be the major league in the future. It will be noticed whether it will be adopted in.