Thomas Jansen

Netherlandsb. 2001 (25)

Personal Bests

Best times from available individual swims and official relay lead-offs. Career coverage may be incomplete. Select an event to show its progression.

100 Backstroke

2023 Mare Nostrum Canet · Canet-en-Roussillon, France · Meet 13–14 May 2023

—58.68

200 IM

2023 Mare Nostrum Canet · Canet-en-Roussillon, France · Meet 13–14 May 2023

—2:04.19

2023 World Aquatics Championships - Fukuoka · Meet 14–30 Jul 2023

—4:16.00

All Results 50 swims · 14 meets

Meet dates describe the competition. Race dates are shown per swim where available.

2026 World Aquatics Swimming World Cup · Astana · Meet 15–17 Oct 2026

200 IM SCM

—Final71:54.78

200 IM SCM

—Heat41:56.57

200 Backstroke SCM

—Heat151:56.74

400 IM SCM

—Final54:04.20

2026 World Aquatics Swimming World Cup · Tashkent · Meet 8–10 Oct 2026

200 IM SCM

—Final91:55.95

200 Backstroke SCM

—Heat61:56.59

200 IM SCM

—Heat21:56.67

400 IM SCM

—Final64:06.18

2026 World Aquatics Swimming World Cup · Baku · Meet 1–3 Oct 2026

200 Backstroke SCM

—Heat71:57.66

200 IM SCM

—Final91:57.79

200 IM SCM

—Heat51:58.24

400 IM SCM

—Final74:08.58

2026 Mare Nostrum Canet (50m) · Canet-en-Roussillon, France · Meet 27–28 May 2026

400 IM LCM

—Final A44:23.39

2024 Mare Nostrum Canet · Canet-en-Roussillon, France · Meet 25–26 May 2024

400 IM LCM

—Final A24:18.87

2024 World Aquatics Championships - Doha · Meet 2–18 Feb 2024

400 IM LCM

—Heat—DQ

2023 World Aquatics Swimming World Cup - Budapest · Meet 20–22 Oct 2023

100 Backstroke SCM

—Heat2958.82

200 IM SCM

—Heat102:03.13

200 Butterfly SCM

—Heat152:05.07

400 Freestyle SCM

—Heat164:01.11

400 IM SCM

—Final74:20.76

2023 World Aquatics Swimming World Cup - Berlin · Meet 6–8 Oct 2023

100 Backstroke SCM

—Heat2758.83

200 Butterfly SCM

—Heat92:02.44

200 IM SCM

—Heat102:02.93

400 Freestyle SCM

—Heat183:57.84

400 IM SCM

—Final64:20.58

2023 World Aquatics Championships - Fukuoka · Meet 14–30 Jul 2023

400 IM LCM

—Heat124:16.00

2023 Mare Nostrum Canet · Canet-en-Roussillon, France · Meet 13–14 May 2023

100 Backstroke LCM

—Heat 12258.68

200 IM LCM

—Final B52:04.19

200 IM LCM

—Final A72:04.24

400 IM LCM

—Final A44:19.74

200 Backstroke LCM

—Heat 1—DNS

200 Butterfly LCM

—Heat 1—DNS

2022 16th FINA World Swimming Championships (25m) · Melbourne · Meet 13–18 Dec 2022

400 IM SCM

—Heat114:08.29

2022 FINA Swimming World Cup · Berlin · Meet 21–23 Oct 2022

200 Backstroke SCM

—Heat51:56.06

200 IM SCM

—Final61:57.56

200 IM SCM

—Swim-off heat11:57.89

200 IM SCM

—Heat31:58.76

200 Butterfly SCM

—Heat81:59.83

400 IM SCM

—Final44:07.88

2021 FINA Swimming World Cup · Berlin · Meet 1–3 Oct 2021

100 Breaststroke SCM

—Heat271:05.96

200 Backstroke SCM

—Final81:57.30

200 Backstroke SCM

—Heat81:57.70

200 IM SCM

—Heat152:00.89

200 Butterfly SCM

—Heat132:01.24

200 Breaststroke SCM

—Heat152:17.78

400 IM SCM

—Final44:14.86

2018 FINA Swimming World Cup · Eindhoven · Meet 28–30 Sep 2018

200 Freestyle SCM

—Heat71:54.36

200 Butterfly SCM

—Heat72:08.57

400 IM SCM

—Final104:27.98

1500 Freestyle SCM

—Final815:41.21