# Sonja Castelein

> Belgian middle-distance runner

**Wikidata**: [Q1881204](https://www.wikidata.org/wiki/Q1881204)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Sonja_Castelein)  
**Source**: https://4ort.xyz/entity/sonja-castelein


## References

1. Sports-Reference.com
2. World Athletics database