In 2019 season, Sugiyama hurt his right ankle during spring training.[2] On September 7, he debuted in the Pacific League against the Chiba Lotte Marines as a relief pitcher.[3] Sugiyama pitched two games in the Pacific League.
In the match against the Tohoku Rakuten Golden Eagles on July 8, 2020, Sugiyama recorded his fastest 157km/h (97.58 mph) fastball.[4] In 2020 season, he finished the regular season with a 11 Games pitched, a 0–0 Win–loss record, a 2.16 ERA, a one Hold, a 22 strikeouts in 16.2 innings. In the 2020 Japan Series against the Yomiuri Giants, Sugiyama pitched as a relief pitcher in Game 2 and contributed to the team's fourth consecutive Japan Series championship with no runs in one inning.[5]
On April 7, 2021, Sugiyama recorded his first win against the Hokkaido Nippon-Ham Fighters as a relief pitcher.[6] In 2021 season, he finished the regular season with 15 Games pitched, a 2–2 Win–loss record, a 3.20 ERA, a one Holds and a 29 strikeouts in 25.1 innings.
On May 8, 2022, he earned his first win as a starting pitcher against the Chiba Lotte Marines.[7] In 2022 season, he finished the regular season with 10 Games pitched, a 1–3 Win–loss record, a 6.80 ERA, and a 37 strikeouts in 42.1 innings.
In 2023 season, Sugiyama injured a ligament in his right elbow during spring training.[8] As a result, he spent the season undergoing rehabilitation and did not have a chance to pitch in the first league.
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