Lucky Zone Day

What Is Lucky Zone Day?

Every May 26th is "Lucky Zone Day" (ラッキーゾーンの日, Rakkī Zōn no Hi) in Japan. On May 26, 1947, Hanshin Koshien Stadium (阪神甲子園球場) — Japan's most famous baseball ground — installed the country's first "lucky zone": a temporary fence erected in front of the outfield wall to shorten the home run distance and increase the frequency of home runs for crowd entertainment. The term "lucky zone" (ラッキーゾーン) entered the Japanese baseball vocabulary as a unique piece of baseball history peculiar to Japan.

Koshien Stadium and the Lucky Zone

Koshien Stadium, opened in 1924, was originally designed with an enormous outfield — too deep for the power hitters of the era to clear regularly. The 1947 installation of the lucky zone reduced the effective distance to the fence, making home runs more achievable and more exciting for spectators. The lucky zone remained a feature of Koshien for decades. It was finally removed in 1992, when renovations and the improved power of modern professional players made it unnecessary, and the outfield was restored to its original dimensions.

Koshien as Sacred Ground

Koshien Stadium is the spiritual home of Japanese high school baseball (高校野球, kōkō yakyū). Every August, the National High School Baseball Championship is held there, drawing millions of television viewers and filling the stands with passionate supporters from every corner of Japan. Players who make it to Koshien — and especially those who win — are national celebrities. The tradition of winning players scooping dirt from the Koshien infield as a keepsake is one of Japanese baseball's most beloved rituals.

Japan's Baseball Culture

Baseball (野球, yakyū) was introduced to Japan in 1872 and has grown to be the country's most popular professional team sport. The Nippon Professional Baseball (NPB) league — with 12 teams — attracts tens of millions of fans. The crossover between NPB and MLB has grown dramatically, with Japanese stars like Ichiro Suzuki, Hideki Matsui, and Shohei Ohtani achieving superstar status in America while remaining beloved in Japan.

Fun Facts

• Ivy walls: The outfield walls at Koshien are famously covered in ivy (ツタ, tsuta), which turns brilliant red in autumn and is one of the stadium's most iconic visual features.
• Sacred soil: Players who reach the Koshien high school championship final fill small bags with the stadium's infield dirt to take home as a memento — a tradition so established that the stadium prepares extra soil for the purpose.