On 31 May, Ogasawara made his professional debut for the Dragons against the Softbank Hawks as the first high school rookie to debut on the opening day of interleague play [REF].
On 11 July, Ogasawara made an appearance in the 9th inning against the Yokohama DeNA Baystars at Yokohama Stadium in his first return to his hometown since being drafted [REF].