SD
Sep De Jong
NEDMenBirth dateMay 19, 2006
Height-
Weight-
Sep De Jong is a Netherlands sprinter, born on May 19, 2006. He competes primarily in the 200m, 400m and 800m.
His personal bests include 23.01 in the 200m, 49.63 in the 400m, 1:55.79 in the 800m, 52.08 in the 400mH and 3:18.95 in the 4x400m. He is currently active on the international athletics circuit, representing Netherlands.
Key facts
400 m hurdles
52.08
400 Metres Short Track
49.63
Age
20 years old
As of Sep 14, 2026: 400 m hurdles 52.08, 400 Metres Short Track 49.63, 2026 season best 52.53 (Jul 4, 2026) · Last competition: Dutch Championships, Jul 25, 2026, 52.82 · 20 years old
PB
Personal bests
23.01
49.63
1:55.79
52.08
3:18.95
1:55.79
49.63
23.01
36.91
14.34
8.18
52.96
1:59.35
Performance Charts
Season bests
| Season | Discipline | Result | Wind | Date | Trend | Competitions |
|---|---|---|---|---|---|---|
| 2026 | 400m | 50.70 | - | Feb 14, 2026 | ↑ | Run & Fly Meeting |
| 2026 | 400m-short-track | 50.70 | - | Feb 14, 2026 | ↓ | Run & Fly Meeting |
| 2026 | 400mH | 52.53 | - | Jul 4, 2026 | ↑ | Meeting voor Mon - Polsstokgala |
| 2026 | 800m-short-track | 1:55.79 | - | Jan 31, 2026 | ↑ | 16e AV PEC 1910 |
| 2026 | 800m | 1:56.21 | - | May 31, 2026 | ↑ | Competitie 1e Divisie Poule 2 R2 |
| 2025 | 60MetresHu | 8.18 | - | Feb 2, 2025 | ↑ | 8e ITS SOTRA |
| 2025 | 60mH | 8.18 | - | Feb 2, 2025 | ↑ | 8e ITS SOTRA |
| 2025 | 200m-short-track | 23.49 | - | Feb 2, 2025 | ↓ | 8e ITS SOTRA |
| 2025 | 200m | 23.49 | - | Feb 2, 2025 | ↓ | 8e ITS SOTRA |
| 2025 | 400m | 50.27 | - | Feb 15, 2025 | ↑ | ASICS Dutch U20 Indoor Championships, Omnisport, Apeldoorn (i) |
| 2025 | 400m-short-track | 50.27 | - | Feb 15, 2025 | ↓ | ASICS Dutch U20 Indoor Championships, Omnisport, Apeldoorn (i) |
| 2025 | 400mH | 52.08 | - | Jul 19, 2025 | ↑ | Trackmeeting Breda, Atletiekbaan Breda, Breda |
| 2025 | 800m-short-track | 1:57.09 | - | Dec 14, 2025 | ↑ | Try Out Games, Omnisport, Apeldoorn (i) |
| 2025 | 800m | 1:57.09 | - | Dec 14, 2025 | ↑ | Try Out Games, Omnisport, Apeldoorn (i) |
| 2025 | SprintMedl | 1:59.35 | - | Jul 6, 2025 | - | Competitie 1e Divisie Poule 2 R3 |
| 2024 | 110MetresH | 14.51 | +2.6 | Aug 30, 2024 | ↓ | Runnersworld Utrecht Track Meeting 5, Atletiekbaan Maarschalkerweerd, Utrecht - Mixed Races |
| 2024 | 200m-short-track | 23.01 | - | Jan 21, 2024 | ↓ | FLVW Hallenmeisterschaften 1, Helmut-Körnig-Halle, Dortmund (i) |
| 2024 | 200m | 23.38 | +2.6 | Apr 28, 2024 | ↓ | Competitie U18/U20 Poule 37 R2, HAC 63, Hoogeveen |
| 2024 | 400m-short-track | 49.63 | - | Feb 11, 2024 | ↓ | Asics Dutch U20 Indoor Championships, Omnisport, Apeldoorn (i) - Invitational Events |
| 2024 | 400m | 50.51 | - | May 18, 2024 | ↑ | Next Generation Athletics |
| 2024 | 400mH | 52.48 | - | Jul 27, 2024 | ↑ | Meeting voor Mon, AtletiekArena Gaston Roelants Kessel-Lo / Hal 5, Leuven |
| 2024 | 800m | 1:56.10 | - | Aug 18, 2024 | ↑ | Terug van vakantie, Sportpark Stappegoor, Tilburg |
| 2024 | 800m-short-track | 1:57.27 | - | Dec 15, 2024 | ↑ | Try Out Games, Omnisport, Apeldoorn (i) |
| 2023 | 60MetresHu | 8.24 | - | Jan 28, 2023 | ↑ | 13e AV PEC 1910 Indoor |
| 2023 | 60mH | 8.24 | - | Jan 28, 2023 | ↑ | 13e AV PEC 1910 Indoor |
| 2023 | 400m | 50.14 | - | Jun 25, 2023 | ↑ | Asics Dutch U18 Championships |
| 2023 | 400m-short-track | 50.27 | - | Feb 11, 2023 | ↓ | Dutch U18 Indoor Championships, Omnisport, Apeldoorn (i) |
| 2023 | 400mH | 52.25 | - | Jul 22, 2023 | ↑ | Flanders Cup Vita, Stedelijke Atletiekpiste, Ninove |
| 2023 | 400mhurdle | 52.97 | - | Jun 23, 2023 | ↓ | Asics Dutch U18 Championships |
| 2023 | 800m | 1:57.03 | - | Sep 10, 2023 | ↑ | Competitie NK Teams - 1e Divisie, Atletiekbaan Breda, Breda |
| 2023 | 4x400m | 3:18.95 | - | Sep 10, 2023 | - | Competitie NK Teams - 1e Divisie, Atletiekbaan Breda, Breda |
| 2022 | 60MetresHu | 8.48 | - | Feb 20, 2022 | ↑ | Omnisport, Apeldoorn (NED) (i) |
| 2022 | 110MetresH | 14.34 | +2.8 | Aug 21, 2022 | ↓ | Sportpark Ter Specke, Lisse (NED) |
| 2022 | 300m | 36.91 | - | Aug 21, 2022 | - | Sportpark Ter Specke, Lisse (NED) |
| 2022 | 400m | 51.06 | - | Sep 4, 2022 | ↑ | Stadspark, Groningen (NED) |
| 2022 | 400mhurdle | 52.96 | - | Jul 6, 2022 | ↓ | European Athletics U18 Championships |
| 2022 | 400mH | 55.71 | - | May 26, 2022 | ↑ | Harry Schulting Games, Vughtse Sports Club Prins Hendrik, Vught |
| 2022 | 800m-short-track | 1:59.34 | - | Dec 18, 2022 | ↑ | Omnisport, Apeldoorn (NED) (i) |
| 2022 | 800m | 1:59.34 | - | Dec 18, 2022 | ↑ | Omnisport, Apeldoorn (NED) (i) |
2026
13 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
400mH | 52.82 | - | Jul 25 | Dutch Championships |
400mH | 55.38 | - | Jul 5 | SPAR Competitie 1e Divisie Poule 2 R3 |
400mH | 52.53 | - | Jul 4 | Meeting voor Mon - Polsstokgala |
800m | 1:56.21 | - | May 31 | Competitie 1e Divisie Poule 2 R2 |
400mH | 53.45 | - | May 23 | IFAM Outdoor |
400mH | 53.24 | - | May 17 | Championnat de France des clubs N1A Poule 3 |
4x400m | 3:18.05 | - | May 17 | Championnat de France des clubs N1A Poule 3 |
400mH | 53.66 | - | May 14 | Harry Schulting Games |
800m-short-track | 1:56.13 | - | Feb 28 | Dutch Indoor Championships |
800m-short-track | 1:56.24 | - | Feb 14 | Run & Fly Meeting |
400m-short-track | 50.70 | - | Feb 14 | Run & Fly Meeting |
800m-short-track | 1:56.21 | - | Feb 8 | 9e ITS SOTRA |
800m-short-track | 1:55.79 | - | Jan 31 | 16e AV PEC 1910 |
2025
24 performances2024
13 performancesShowing 1 - 50 of 111
Honours
No medals
FAQ
Frequently asked questions
What is Sep De Jong's 400 m hurdles personal best?
Sep De Jong's 400 m hurdles personal best is 52.08, set on Jul 19, 2025 in Atletiekbaan Breda, Breda (NED).
Which events does Sep De Jong compete in?
Sep De Jong competes in the 400 m hurdles and 400 Metres Short Track.
How did Sep De Jong perform in 2026?
2026 season best: 52.53, set on Jul 4, 2026. Last competition: Dutch Championships on Jul 25, 2026, 52.82.