The US Sumo Open

Celebrating 24 years of slamming behemoths

360 lb. Byamba hoisting and dropping his 440 lb. opponent at the 2013 US Sumo Open. The spectacular feat, which is still remembered today, became known as the 'sumo slam'.

If you never heard of the US Sumo Open, then you’re not alone.

This Spring, the 1,500-year-old Japanese sport, which enjoys a hyper-niche following in the U.S., will celebrate its 24th …