Athlete profile Alison DOS SANTOS

Brazil26 years old2.00 m (6 ft 7 in)LeftInstagram World Athletics

Personal best45.80sWR

Brazil record45.80s

Races14

Average time46.92s

Progression+2.77s

Best performance by year

Personal best

Recorded race history

400m haies

Competition	Time	Venue	Date	Age	Place
2026
Ultimate Championship	45.98s	Budapest	13 Sept 2026	26	1	View race
Diamond League	46.70s	Bruxelles	05 Sept 2026	26	1	View race
Diamond League	WRARNRPB45.80s	Zürich	27 Aug 2026	26	1	View race
Diamond League	46.43s	Chorzów	23 Aug 2026	26	1	View race
Diamond League	46.89s	Oslo	10 Jun 2026	26	1	View race
Diamond League	47.11s	Stockholm	07 Jun 2026	26	1	View race
2025
World Championships	46.84s	Tokyo	18 Aug 2025	25	2	View race
2024
Olympic Games	47.26s	Paris	09 Aug 2024	24	3	View race
2023
Diamond League	47.66s	Monaco	21 Jul 2023	23	2	View race
2022
World Championships	46.29s	Eugene	19 Jul 2022	22	1	View race
Diamond League	47.23s	Eugene	28 May 2022	21	1	View race
2021
Olympic Games	46.72s	Tokyo	17 Aug 2021	21	3	View race
Diamond League	47.38s	Oslo	01 Jul 2021	21	2	View race
2019
Universiade	48.57s	Napoli	11 Jul 2019	19	1	View race

Race signature

Average intervals computed over 14 races

D-H15.81sL

H1-H23.63s

Sector records

The best theoretical time, built by summing the fastest intervals.

Theoretical potential45.15s

Personal best45.80s

Margin+0.65s

D-H15.69s

H1-H23.52s

H2-H33.50s

H3-H43.51s

H4-H53.71s

H5-H63.81s

H6-H73.84s

H7-H84.03s

About Alison Dos Santos

Alison Dos Santos (26 years old, Brazil, 2.00 m (6 ft 7 in)) is an athlete who specialises in the 400 metres hurdles, born on 3 June 2000.

With a personal best of 45.80 seconds, Alison has run 14 analysed races on 4h/world, improving by 2.77 seconds since their first recorded race. This time is the world record in the event.

Alison Dos Santos holds the following records in the 400 metres hurdles:

World record: 45.80s
South America record: 45.80s
Brazil record: 45.80s
South America record U23: 46.29s
South America record U20: 48.28s

Their preferred race plan is a 13-stride start up to hurdle 2, 12 strides up to hurdle 6, then a 13-stride finish.

Based on their best recorded intervals, Alison's theoretical potential is estimated at 45.15 seconds, a 0.65-second margin over their current personal best.