🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlands日本語EntityQ299241· pop 5· linked from 64 articlesLambertz Open by STAWAGindoor tennis tournament held in Aachen, North Rhine-Westphalia, since 1991Wikidata factsOfficial websitewww.atp-ac.comvia Wikidata · CC0Available in 5 languagesEspañolDeutschItalianoBahasa Indonesiavia Wikidata sitelinks · CC0ConnectionsATP Challenger TourEntityUnited StatesCountryCategories1991 establishments in Germany2010 disestablishments in GermanyATP Challenger TourCarpet court tennis tournamentsDefunct tennis tournaments in GermanyLambertz Open by STAWAGRecurring sporting events disestablished in 2010Recurring sporting events established in 1991Sport in AachenSports competitions in North Rhine-Westphalia