Jang Seong-il

Born: 05/07/2004
Height: 180 cm
Nationality: Korean
Style: Left-handed, Shakehand
Best WR: 197 (May 2024)

Jang Seong-il (Korean: 장성일) was born 5 July, 2004 in South Korea.
On the professional circuit, he has won one doubles title in his career.

PROFESSIONAL TOUR DOUBLES ACCOLADES

2024 WTT Feeder Düsseldorf I
2025 WTT Feeder Otočec

CLUB CHAMPIONSHIPS

2022 Korea 1st (Mirae Asset Securities)
2023 Korea 1st (Mirae Asset Securities)