# Lambertz Open by STAWAG

> indoor tennis tournament held in Aachen, North Rhine-Westphalia, since 1991

**Wikidata**: [Q299241](https://www.wikidata.org/wiki/Q299241)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Lambertz_Open_by_STAWAG)  
**Source**: https://4ort.xyz/entity/lambertz-open-by-stawag