In 1975, the U.S. Open switched from green lawn to green clay (Har-Tru ... s National Tennis Center in nearby Flushing, N.Y. The brand new facility was built with hard courts (DecoTurf II ...
While I was out at the National Tennis Center last week ... and adapt to playing on a court that plays more like Har-Tru than the same-old, same-old red clay, the way Connors, Vilas, Bjorn Borg ...
Five of those outdoor courts have a Deco-Turf surface, and ten have Har-Tru clay, but all of them get covered in the winter by a tennis bubble so they can remain in use. In addition to annual ...