​On 30 April 2011, Nobuo Hayashi was named Best Judge of the semi-final rounds for the 34th Telders International Law Moot Court Competition held at the Peace Palace in The Hague.

The Best Judge Award was spontaneously created by students in 2003 and is awarded to the best judge of the semi-finals. More than 40 academics and practitioners of international law serve as semi-final judges each year. Nobuo has been a Telders judge since 2006.