Career
He defeated British wildcard Mark Petchey in the first round of the main draw, but lost in the second round, to fellow qualifier Barry Moir, in four sets. The pair were eliminated in the opening round by Sergio Casal and Emilio Sánchez. He also took part in both the singles and doubles draws of the 1989 Australian Open.
He was unable to progress past fourth seed Stefan Edberg in his next match, losing in straight sets.
Outside of Grand Slams, Moraing had his best performance on tour at the 1988 German Open, where he beat the 42nd ranked player in the world Eric Jelen. The previous year he was a semi-finalist at a Challenger event in Vancouver and made the doubles final at another Challenger tournament, in Bossonnens, partnering Alexander Mronz.