Russian Open MCR Marathon 2015 Russian Mahjong Federation is proud to announce the start of "Russian Open MCRMarathon 2015" - an extended ten-month online competition which takes place at the game server MahjongTime. Unlike previous years Marathon 2015 will be international. Russian Mahjong Federation invites all players to participate! Marathon starts on February 1, 2015 and will last until November 30, 2015 by San Diego (California, USA) time. Winners of the Marathon or its Stages will receive prizes!