Fastest 50 km ultra marathon run by a mother and daughter
- Who
- Natalia Lazarus, Cienna Lazarus
- What
- 9:56:20 hour(s):minute(s):second(s)
- Where
- United States (Cerritos, CA)
- When
- 20 June 2026
Age Restriction: Applications for this record title will only be accepted if the applicant is 16 years of age or over.
The fastest 50 km ultra marathon run by a mother and daughter is 9 hr 56 min 20 sec, and was achieved by Natalia Lazarus and Cienna Lazarus (both USA) in Cerritos, California, USA, on 20 June 2026.
Natalia and Cienna hope to challenge other mothers and daughters to chase big dreams!