Tatsuya Tanaka and Brazilian striker Washington both scored twice as holder Urawa Reds thrashed non-league outfit Shizuoka FC 5-0 to move into the fifth round of the Emperor's Cup on Saturday.
There were no upsets in any of the day's other ties as J. League first-division teams joined the fourth round of the Japanese F.A. Cup, although Jubilo Iwata needed penalties to see off second-division Kashiwa Reysol after a 1-1 draw.
Urawa controlled its fourth-round tie from start to finish at Komaba Stadium and Tanaka pounced on a defensive error to put Reds in front with a tidy lob after five minutes.
Makoto Hasebe rifled in off the post to double the J. League leaders' advantage midway through the first half, and Washington netted his first of the match with a free header three minutes into the second period.
Tanaka completed his double from close range before setting up Washington for an easy fifth in the dying stages.
"Once we got the first goal it was plain sailing from that point onward," said Tanaka.
At Yamaha Stadium, Doumbia Seydou canceled out Ryoichi Maeda's 10th-minute opener for Iwata but the home side advanced after winning the penalty shootout 9-8.