In the Edo period of 1724, at the direction of the shogun Yoshimune TOKUGAWA, Sadamasa OGASAWARA, the Ogasawara school's 20th principal, developed a new style of yabusame after the studying the Ogasawara textbook, and trained samurai serving backoffice work in the new form of yabusame and kasagake (shooting a bamboo hat) together with the older style of yabusame.
江戸時代に入り享保9年(1724年)、時の征夷大将軍、徳川吉宗の命を受けた小笠原流20代小笠原貞政は、小笠原の伝書を研究し新たな流鏑馬制定、古式と共に奥勤めの武士達に流鏑馬、笠懸の稽古をつける。