High School Baseball Commemoration Day

What Is High School Baseball Commemoration Day?

Every August 18th is "High School Baseball Commemoration Day" (高校野球記念日, Kōkō Yakyū Kinenbi) in Japan. On August 18, 1915, the first National Middle School Baseball Championship (第1回全国中等学校優勝野球大会) opened at Toyonaka Ground in Toyonaka, Osaka — the first edition of today's National High School Baseball Championship held every August at Hanshin Koshien Stadium. Just 10 schools that had won their regional qualifiers took part in that inaugural tournament, which was won by Kyoto Second Middle School (today's Kyoto Prefectural Toba High School).

The Summer Koshien Tournament

The National High School Baseball Championship — universally known in Japan as "Summer Koshien" (夏の甲子園) — moved to Naruo Stadium in 1917 and then to Koshien Stadium in Nishinomiya, Hyogo, when it opened in 1924. The tournament has been interrupted by World War II and was cancelled in 2020 due to COVID-19, and its 100th edition was held in 2018. Well over 3,000 high school teams compete in regional qualifying tournaments each summer; the regional winners (usually 49) advance to Koshien, where they play single-elimination games until a national champion emerges.

Why Koshien Matters

Summer Koshien occupies a unique place in Japanese culture that goes beyond sport. The tournament carries deep emotional weight as a celebration of youth, effort, and the poignant transience of teenage dreams — themes that resonate with Japanese aesthetic values of mono no aware (the pathos of impermanence). Countless manga series, novels, and films have been built around the aspiration of reaching Koshien. Players who reach the tournament — regardless of how far they advance — are celebrated in their home regions. On August 15, the anniversary of the end of World War II, play is paused at noon for a one-minute moment of silence.

Koshien as a Talent Pipeline

Koshien serves as Japan's primary showcase for baseball talent at the high school level. Professional scouts closely follow the tournament, and standout performances at Koshien regularly lead to high draft selections. Several Koshien standouts have gone on to major league careers in the United States, including Daisuke Matsuzaka, Yu Darvish, and Shohei Ohtani.

Fun Facts

• Crying after losing: A distinctive element of the Koshien experience is the weeping of losing players — and often their supporters — after elimination. This emotional release is not considered unmanly; it is understood as the authentic expression of how much the tournament meant to them.
• The dirt ritual: Players — most famously those on losing teams — scoop Koshien's infield dirt into bags to take home after their last game. No one knows exactly when the custom took hold; one early example is future Yomiuri Giants manager Tetsuharu Kawakami, who pocketed some dirt after losing the 1937 final.