Laviai Nielsen
Great Britain & N.I.
Laviai Nielsen is a British track and field athlete who specializes in the 400 meters. She has represented Great Britain at various international competitions, including the World Championships and the European Championships. Laviai is known for her impressive speed and has been a key member of the British relay teams.
Olympic Medals
World Championship Medals
Personal Bests
400 Metres
London Athletics Meet
49.87
7/20/2024
100 Metres
11.47
3/27/2024
200 Metres
23.32
3/27/2024
150 Metres
17.51
5/11/2022
300 Metres
37.66
5/11/2022
Major Championships
The XXXIII Olympic Games - 4x400 Metres Relay
3:19.72
The XXXIII Olympic Games - 4x400 Metres Relay Mixed
3:08.01
The XXXII Olympic Games - 4x400 Metres Relay
3:23.99 (r1)
IAAF World Championships in Athletics - 4x400 Metres Relay
3:25.00
Sponsors
Gear
Upcoming Events
Recent Mentions

Lieke Klaver 🇳🇱 produces FASTEST 400m of the day in Metz ⚡ | Full replays
European Athletics
2 months ago
Lieke Klaver, Laviai Nielsen and Sharlene Mawdsley star in their respective 400m races at the Meeting Metz Moselle on the road to the Apeldoorn 2025 European Athletics Indoor Championships from 6-9 March. SUBSCRIBE to our channel for the best European Athletics videos and highlights: https://www.youtube.com/europeanathletics Follow European Athletics: https://www.european-athletics.com/ https://www.instagram.com/europeanathletics/ https://www.facebook.com/EuropeanAthletics https://twitter.com/EuroAthletics https://www.tiktok.com/@europeanathletics #Athletics #EuropeanAthletics #TrackandField

Today on the Runna Podcast, we’re joined by Laviai Nielsen, a two-time Olympian and superwoman.
We talked about:
- Her journey to competing in the Olympics not just once, but twice.
- What it’s like training with her twin sister, Lina, throughout her entire career.
- The inside scoop on Olympic Village life—yes, including the food and the epic after-parties!
- Her refreshing take on diet culture as an athlete: "The only diet is one where you don’t eat enough."
This episode is packed with insights, humor, and inspiration from one of the most accomplished and down-to-earth athletes out there.
We’d love to hear your thoughts and your running stories—send them to PODCAST@RUNNA.COM or connect with us on Instagram.
Don’t forget to use code ‘RUNNAPODCAST’ for 2 weeks free on Runna!
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