Suiba was held around June or July at the Sumida-gawa river with the participation of several dozens of samurai; namely, the shoinban (castle guard), the okoshoban (official guard in the Tokugawa Shogunate), the oban (a group of guards in the Edo shogunate), samurai working at one of four stables (in Tsurumi, Magaki, Suwabe or Urabe), and samurai working for one of the three families related to the shogun (the Tayasu, the Hitotsubashi or the Shimizu).
6、7月ころ、書院番、御小姓番、大番、ならびに鶴見、曲木、諏訪部、浦部4箇所の厩付の諸士および田安、一橋、清水の三卿付の諸士らが、数名ないし十数名出動し、隅田川すじでおこなわれた。