JK
Jonáš Kostka
CZEMenBirth dateJan 1, 2004
Height-
Weight-
Jonáš Kostka is a Czechia sprinter, born on January 1, 2004. He competes primarily in the 200m, 400m and 110mH.
His personal bests include 22.85 in the 200m, 51.32 in the 400m, 15.40 in the 110mH, 53.69 in the 400mH and 3:18.52 in the 4x400m. He is currently active on the international athletics circuit, representing Czechia.
Key facts
400 m hurdles
53.69
300 Metres Hurdles
38.81
Last competition
USF Alumni Invitational, University of South Florida Track & Field Stadium, Tampa, FL
Mar 22, 2025 · 3:18.52
Age
22 years old
As of Sep 17, 2026: 400 m hurdles 53.69, 300 Metres Hurdles 38.81, 2025 season best 8.89 (Jan 6, 2025, Sportovní hala, Praha (CZE) (i)) · Last competition: USF Alumni Invitational, University of South Florida Track & Field Stadium, Tampa, FL, Mar 22, 2025, 3:18.52 · 22 years old
PB
Personal bests
22.85
51.32
15.40
53.69
3:18.52
8.73
51.99
23.64
35.72
38.81
25.99
15.04
9.04