Rebound Ace is a cushioned tennis hardcourt composed of polyurethane rubber, fiberglass, and other materials on top of an asphalt or reinforced concrete base. It is manufactured by Rebound Ace Sports Pty Ltd, based in Brisbane, Australia.
The friction of the surface of Rebound Ace can be varied by increasing or decreasing the amount of sand in the top layer thereby customising the ball bounce and general speed of the court. Rebound Ace is sometimes compared with DecoTurf, which is used at the US Open, however Rebound Ace is built with more cushioning.
It was subject to some controversy in recent years when some tennis players argued that it got very sticky with high temperatures, increasing the chances of injuries. However, evidence points to it being no worse than other hard courts. A recent quote by Paul McNamee indicates that investigations found nothing, commenting that injuries are "inevitable on any hard court" and "an investigation into injuries at the Australian Open, by the ATP and WTA tours, had laid no blame on Rebound Ace ... the evidence simply wasn't there."