IGRAB currently sponsors a single, biennial event: a tournament whose champion receives The Mark Kendall Bingham Memorial Trophy, also known as The Bingham Cup. The tournament is named for Mark Bingham, an early member of the San Francisco Fog and former member of the championship University of California (Berkeley) rugby team.

More information about the tournament is provided by year:

• 2002 San Francisco, California, USA
• 2004 London, England, UK
• 2006 New York City, NY, USA