HK
Hyun-seo Ko

Hyun-seo Ko

KORKORWomen
Birth dateJan 5, 2003
Height-
Weight-

Hyun-seo Ko is a South Korea thrower, born on January 5, 2003. She competes primarily in the JT and JavelinThr.

Her personal bests include 55.51 in the JT and 48.73 in the JavelinThr. She is currently active on the international athletics circuit, representing South Korea.

Key facts
Javelin Throw
55.51
#630 all-time
2026 season best
52.26
Jun 7, 2026 · Miryang Sports Complexs, Miryang (KOR)
2026 season best
Last competition
Miryang Arirang National Athletics Meeting
Jun 7, 2026 · 52.26
Miryang Arirang National Athletics Meeting
Age
23 years old

As of Oct 3, 2026: Javelin Throw 55.51 (#630 all-time), 2026 season best 52.26 (Jun 7, 2026, Miryang Sports Complexs, Miryang (KOR)) · Last competition: Miryang Arirang National Athletics Meeting, Jun 7, 2026, 52.26 · 23 years old

Performance Charts

Season bests

SeasonDisciplineResultWindDateTrendCompetitions
2026
JT
52.26-Jun 7, 2026
↓
Miryang Arirang National Athletics Meeting
2025
JT
55.51-Jun 5, 2025
↓
53rd Flag of KBS National Athletics Meeting, Yecheon Stadium, Yecheon
2024
JT
49.20-Sep 11, 2024
↓
35th National Club Athletics Meeting, Seocheon Sports Complex, Seocheon
2023
JT
49.70-May 24, 2023
↓
2023 Yecheon KTFL Athletics Meeting, Yecheon Stadium, Yecheon
2022
JT
49.05-Oct 10, 2022
↓
Ulsan (KOR)
2021
JT
44.33-Apr 20, 2021
↓
Yecheon (KOR)
2020
JT
46.42-Oct 23, 2020
↓
Yecheon (KOR)
2019
JavelinThr
44.97-Aug 25, 2019
↑
International Throws Meeting, Mokpo
2019
JT
45.59-Oct 9, 2019
↓
National Sports Games, Olympic Stadium, Seoul
2018
JavelinThr
48.73-Apr 24, 2018
↑
Gwangju (KOR)
2018
JT
48.73-Apr 16, 2018
↓
Gwangju (KOR)

2026

2 performances

2025

9 performances
DisciplineResultWindDateCompetitions
JT
51.67-Sep 336th National Club Athletics Meeting
JT
50.56-Aug 22Asian Throwing Championships, Mokpo Stadium, Mokpo
JT
54.87-Jul 2Flag of KTLF President National Club Athletics Meeting 2025, Seocheon Sports Complex, Seocheon
JT
54.87-Jul 1Flag of KTLF President National Club Athletics Meeting 2025, Seocheon Sports Complex, Seocheon
JT
55.51-Jun 553rd Flag of KBS National Athletics Meeting, Yecheon Stadium, Yecheon
JT
46.60-May 2154th National Division Athletics Championships, Miryang Sports Complexs, Miryang
JT
49.16-Apr 21National Selection Meeting for 2025 Gumi Asian Athletics Championships, Gumi Civic Stadium, Gumi
JT
50.74-Apr 2Gimhae KTFL National Club Athletics Meeting, Gimhae Stadium, Gimhae
JT
50.74-Apr 1Gimhae KTFL National Club Athletics Meeting, Gimhae Stadium, Gimhae

2022

5 performances
DisciplineResultWindDateCompetitions
JT
49.05-Oct 10National Games, Ulsan
JT
47.79-Jul 7National Club Meeting, Goseong
JT
45.60-May 25KTFL Clubs Meeting, Iksan
JT
40.87-Apr 22National Division Athletics Championships, Daegu
JT
40.87-Apr 21National Division Athletics Championships, Daegu

2021

1 performance
DisciplineResultWindDateCompetitions
JT
44.33-Apr 20Korean Club Championships, Yecheon

2020

4 performances
DisciplineResultWindDateCompetitions
JT
46.42-Oct 23Korean University Championships, Yecheon - High School Events
JT
41.12-Aug 1249th Fall Season National HS Meeting, Boeun - High School Events
JT
42.86-Jul 149th Spring Season National Athletics Meeting, Yecheon - High School Events
JT
41.37-Jun 27Korean Championships, Jeongseon

2019

6 performances
DisciplineResultWindDateCompetitions
JT
45.59-Oct 9National Sports Games, Olympic Stadium, Seoul
JavelinThr
44.97-Aug 25International Throws Meeting, Mokpo
JT
45.10-Aug 12HS Meeting, Boeun - U20 Events
JT
44.91-Jul 28National Meeting, Jamsil, Seoul - U20 Events
JT
44.05-Jul 20Korean High School Championships, Jeongseon - High School Events
JavelinThr
43.89-Mar 17Asian U18 Championships, Hong Kong

2018

8 performances
DisciplineResultWindDateCompetitions
JT
45.03-Oct 17Iksan Korean Sports Games, Iksan - High School Events
JT
45.73-Sep 15Mokpo International Throwers Meeting, Mokpo - High School Events
JT
45.49-Aug 25Yeosu
JT
47.45-Jul 29Iksan
JT
45.31-Jun 16Yecheon KBS Cup, Yecheon - U20 Events
JavelinThr
45.90-Apr 24Jeongseon Spring Schools Meeting, Jeongseon - U18 Events
JavelinThr
48.73-Apr 24Gwangju
JT
48.73-Apr 16Gwangju

Honours

No medals

FAQ

Frequently asked questions

What is Hyun-seo Ko's Javelin Throw personal best?

Hyun-seo Ko's Javelin Throw personal best is 55.51, set on Jun 5, 2025 in Yecheon Stadium, Yecheon (KOR), #630 on the all-time list.

Which events does Hyun-seo Ko compete in?

Hyun-seo Ko competes in the Javelin Throw.

How did Hyun-seo Ko perform in 2026?

2026 season best: 52.26, set on Jun 7, 2026 in Miryang Sports Complexs, Miryang (KOR). Last competition: Miryang Arirang National Athletics Meeting on Jun 7, 2026, 52.26.