The United States Open Tennis Championships is a hard court tennis tournament when it was founded? A. 1860 B. 1881 C. 1900 D. 1913 💾 Save the Page as PDF: 📥𝐃𝐨𝐰𝐧𝐥𝐨𝐚𝐝 𝐍𝐨𝐰! Related Read more articles Previous PostWhere is the headquarter of The International Table Tennis Federation (ITTF)? Next PostThe Australian Open is the first of the four Grand Slam Tennis events held each year, preceding the French Open, Wimbledon and the US Open was founded in? If the aforementioned Answer is Wrong. Leave a Reply with an authentic source.Cancel reply