45 Teams Launch 108th Aomori Prefectural High School Baseball Tournament
The 108th Aomori Prefectural High School Baseball Tournament began July 7 at Daishin Baseball Stadium in Aomori City, with 45 teams participating in the opening ceremony. This tournament serves as the regional qualifier for the Japanese High School Baseball Championship, commonly known as Summer Koshien.
How many teams are competing in the Aomori tournament?
A total of 45 high school baseball teams entered the 108th edition of the tournament, according to official reports from the opening ceremony. The teams marched into Daishin Baseball Stadium (the municipal stadium) on July 7 to mark the official start of the competition. The tournament follows a single-elimination format to determine which school will represent Aomori Prefecture at the national championships in Koshien.

Where is the tournament being held?
The opening ceremonies and key matchups are centered at Daishin Baseball Stadium in Aomori City. Known locally as the municipal stadium, the venue is the primary hub for the prefecture’s high school baseball activities. Local conditions in Aomori during July typically involve high humidity and rising temperatures, which often impact pitcher endurance and game pacing in the summer heat.
What is at stake for the participating schools?
The winner of the Aomori tournament earns a berth in the National High School Baseball Invitational Tournament. For the 45 schools involved, the tournament is the culmination of a year of training. Because the “Summer Koshien” is one of the most culturally significant sporting events in Japan, the stakes extend beyond the trophy to include regional prestige and visibility for the players’ collegiate scouting prospects.
For global readers, high school baseball in Japan operates differently than the American system. These tournaments are not league-based seasons but intense, short-term knockout competitions where a single loss ends a team’s season immediately.
What comes next in the tournament schedule?
Following the opening ceremony on July 7, the tournament moves into the preliminary rounds. The bracket will narrow from 45 teams through a series of knockout games played across various stadiums in the prefecture. The final match will determine the representative for the 108th national championship.
Official updates on game times and results are typically released via the Japan High School Baseball Federation and local Aomori sports outlets.
Follow the official tournament brackets for the latest score updates and scheduling changes.