# 1909 U.S. National Championships – men's singles

> tennis tournament held in 1909

**Wikidata**: [Q4559040](https://www.wikidata.org/wiki/Q4559040)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/1909_U.S._National_Championships_–_Men's_singles)  
**Source**: https://4ort.xyz/entity/1909-u-s-national-championships-men-s-singles