The Australian Open specifically uses Plexicushion Prestige hard courts, categorized as a "Medium" speed surface by the International Tennis Federation (ITF). 
Isaac Okoronkwo (Ọjọ́ìbí May 1, 1978 in nbẹne, Nigeria) jẹ́ agbábọ́ọ̀lù-ẹlẹ́sẹ̀ ará Nàìjíríà.Ìtọ́kasí àwọn agbábọ́ọ̀lù-ẹlẹ́sẹ̀ ará Nàìjíríà.. 