AMASX: Round #7 Race Report – Arlington Supercross Media Press Release: RCH Soaring Eagle/Jimmy Johns/Suzuki Factory Racing’s Ken Roczen captured his second Monster Energy AMA Supercross, an FIM World Championship, victory of the 2016 season in front of 57,755 fans at AT&T Stadium on Saturday. In the Western Regional 250SX Class, Yamalube/Star Racing Yamaha’s Cooper…