# Major professional tennis tournaments before the Open Era
**Wikidata**: [Q1067533](https://www.wikidata.org/wiki/Q1067533)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Major_professional_tennis_tournaments_before_the_Open_Era)  
**Source**: https://4ort.xyz/entity/major-professional-tennis-tournaments-before-the-open-era


## References

1. Freebase Data Dumps. 2013