Koen De Groot

Personal Bests

Best times from available individual swims and official relay lead-offs. Career coverage may be incomplete.

50 Breaststroke

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

—27.59

100 Breaststroke

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

—1:01.85

All Results 39 swims · 8 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

50 Breaststroke SCM

—Final626.18

50 Breaststroke SCM

—Heat626.50

100 Breaststroke SCM

—Final958.17

100 Breaststroke SCM

—Heat1059.00

50 Freestyle SCM

—Heat—DNS

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

50 Butterfly SCM

—Heat724.68

50 Breaststroke SCM

—Final626.42

50 Breaststroke SCM

—Heat326.51

100 Breaststroke SCM

—Final1058.81

100 Breaststroke SCM

—Heat358.94

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

50 Butterfly SCM

—Heat224.39

50 Breaststroke SCM

—Final526.15

50 Breaststroke SCM

—Heat326.48

100 Breaststroke SCM

—Heat558.78

200 Breaststroke SCM

—Heat72:18.50

2026 Mare Nostrum Monaco (50m) · Monaco, Monaco · Meet 23–24 May 2026

50 Breaststroke SCM

—Final727.37

50 Breaststroke SCM

—Heat 1827.88

100 Breaststroke SCM

—Final61:00.91

100 Breaststroke SCM

—Heat 181:01.57

2026 NCAA Division I Men's Swimming & Diving · Meet 25–28 Mar 2026

100y Breaststroke SCY25 Mar 2026

25 Mar 2026Championship Final450.44

100y Breaststroke SCY25 Mar 2026

25 Mar 2026Preliminary550.61

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

50 Breaststroke LCM

—Final A227.59

50 Breaststroke LCM

—Heat 1228.27

100 Breaststroke LCM

—Final A81:01.85

100 Breaststroke LCM

—Heat 181:02.29

100 Freestyle LCM

—Heat 1—DNS

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

50 Freestyle SCM

—Heat2523.44

50 Breaststroke SCM

—Final827.40

50 Breaststroke SCM

—Heat827.42

50 Breaststroke SCM

—Swim-off heat127.51

100 Breaststroke SCM

—Heat131:01.64

200 Breaststroke SCM

—Heat252:27.84

100 Freestyle SCM

—Heat—DNS

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

50 Freestyle SCM

—Heat2723.29

50 Breaststroke SCM

—Heat927.68

50 Breaststroke SCM

—Swim-off heat227.73

100 Breaststroke SCM

—Heat141:01.87

200 Breaststroke SCM

—Heat292:28.50

100 Freestyle SCM

—Heat—DNS