Live Commentary from Hokkaido! Cardboard Sumo Broadcast – Spring 2025 Day 5

🗓️ Spring Grand Kamisumo Tournament – Day 5 (Midpoint) | May 22, 2025

🥋 Welcome back to the world of Kamisumo – cardboard sumo wrestling made from recycled milk cartons, delivered straight from Hokkaido, Japan!

Day 5 of the 2025 Spring Tournament marked the halfway point — and brought a fresh broadcast twist!
For this special day, the play-by-play action was presented by Risa Oshima, a singer-songwriter, and Umibozu, our iconic commentator-referee-hitter, in a duo format filled with fun banter and heartfelt passion for Kamisumo.

🎙️ Live Commentary by:

Risa Oshima (Singer-songwriter & Kamisumo regular)

Umibozu (Commentator / Referee / Striker)

🧃 Why Cardboard Sumo?
Because in Japan, even milk cartons can become champions! Wrestlers are hand-crafted from used milk packs, turning sustainability into sportsmanship.

✨ Highlights of the Tournament So Far:

Can reigning champion Ogura Castle (Fukuoka) clinch a 10th straight title?

Saitama’s rising star, “Sainokuni Black Pork Gyoza” (age 20), breaks into the elite ranks!

Juryo Division heats up with contenders from age 16 to 52!

💡 Experience the drama, comedy, and creativity of Japan’s most unique sumo tradition — where the heart of competition meets the spirit of handmade fun.