In the second round against Kenya Nagasaka led Takasaki Health & Welfare University High school, Yanagi pitched 5 scoreless frames before giving up 5 runs in the 6th inning.

[8] In the third round against Chiben Gakuen High school pitching off against a battery of Daiki Aoyama and Katsushi Nakamichi, Yanagi was able to keep his opponent to one run through 8 innings but was withdrawn after giving up a hit to the lead-off batter in the 9th inning, his replacement, however, would unfortunately give up the game in a come-from-behind loss.

[12] In the summer Kanagawa prefectural tournament, Yanagi would once again come up against Yuki Matsui and Toko Gakuen where his team would be bundled out 3–4 in the quarter-finals.

[13] At Koshien Stadium, Yanagi finished with career statistics of 6 games played, 42 2/3 innings pitched, 37 strikeouts and an ERA of 2.74.

At his time at Yokohama, Yanagi played alongside future pros Tomo Otosaka, Kensuke Kondo, Yuto Takahama and Daiki Asama.

After entering Meiji University, Yanagi started playing in fall of his first year in the Tokyo Big6 Baseball League.

At the 44th Meiji Jingu Tournament, against Seisa Dohto University, Yanagi threw 5 scoreless innings in a 4–1 victory.

At the 45th Meiji Jingu Tournament, he threw 6 scoreless innings in relief over 3 games, helping the team to runners-up.

[17] At the 65th Japanese Collegiate National Championships in the first game against Kansai University of International Studies, Yanagi would make an appearance in relief but his team would ultimately lose out in a tie-breaker.

At Meiji University, Yanagi played alongside future pros Sachiya Yamasaki, Kento Itohara, Kenta Uehara, Seishirō Sakamoto, Shun Takayama, Tomoya Hoshi, Keita Sano and Katsushi Nakamichi.

[35] On 18 June, Yanagi claimed his first professional win against the Seibu Lions where he pitched out 7 innings giving up 7 hits and 3 earned runs.

On 10 April against the Tokyo Yakult Swallows, Yanagi threw a 2-hit, 6 strikeout, complete game shut-out to mark the first of his career.

He was subsequently added to the 2019 Central League All-Star roster by manager selection where he pitched 2 innings in relief for 3 earned runs in the second game of the series.