|Inashiro High School - No. 5|
|Bats: Right||Throws: Right|
|Place of birth||Tokyo|
|Education||3rd Year High School (debut) |
Inashiro Alumni 
|Style||line-drive hitting style|
|Anime||S1 - Episode 42|
|Voice Actor||Tetsuya Kakihara|
Yoshizawa Hideaki was a student of Inashiro Industrial. He was the third baseman of the Inashiro Baseball team.
Yoshizawa have a lot of pride being one of the clean-up batters for Inashiro. He is also one who quickly gets irate and complains when Narumiya is mainly cheered by the crowd or when the pitcher gets the most recognition in Inashiro.  However, he greatly trusts Narumiya along with the other second years that joined Inashiro with him.
West Tokyo Tournament
Yoshizawa watches Seidou's semifinals match against Sensen Academy with Hirai, Harada and Narumiya.
Batting: Yoshi's sharp swing can create opportunities for Inashiro to score. He was formerly the team's third batter.
- Rankings from the guidebook: 
- Defense: He ranked fourth in Glove handling.
- Yoshizawa (吉沢) - Lucky Swamp
- Hideaki (秀明 ) - Shining Excellence
- "I know very well that people think our second-years are the core of our team. But...we the third-years have will power! The Clean-up has pride!"
|Narumiya Mei • Shirakawa Katsuyuki • Kamiya Carlos Toshiki • Yamaoka Riku • Fukui Kento • Yabe Kouji|
|Akamatsu Shinji • Yoshizawa Akimitsu • Mitsuichi Youji • Shima Ryouhei
|Former players||Harada Masatoshi • Yoshizawa Hideaki • Hirai Tsubasa