The Whole History Rating (WHR) system was proposed by Remi Coulom in 2008. It was introduced to the Arimaa community by Brian Haskin (Janzert) in the forum. It was implemented and applied to the Arimaa games archive by Herve Dhondt (woh) and the results are made available as rating lists.
WHRH - uses only Human vs Human games
WHRE - uses games from events, includes bots
WHRP - uses only postal games, includes bots