Kazuki Nagasawa and Yuki Muto scored first-half goals, while Shinzo Koroki added a third late in the game as the Urawa Reds advanced to the Asian Champions League knockout stage with a 3-0 win over Group G rival Beijing Guoan.
But fellow J. League side Kawasaki Frontale was eliminated from Group H despite thrashing Sydney FC 4-0, after Shanghai SIPG secured second place with a 5-0 home victory over group winner Ulsan Hyundai.
With South Korean champion Jeonbuk Motors having locked up top spot and Thailand's Buriram United already knocked out, Urawa and Beijing came to the final group-stage clash at Saitama Stadium with second place and a spot in the last 16 at stake.