The 1884 U.S. National Championships was a tennis tournament that took place in the outdoor grass courts at the Newport Casino in Newport, Rhode Island. The tournament was held from August 25 to August 31. It was the 4th U.S. National Championships and the second Grand Slam tournament of the year. US Open 1884: August 25–31, 1884 at Newport Casino. Men's singles: Richard D. Sears — 4th major title. Wiki link