Donald Wailan-Walalangi (born 14 April 1960) is a retired tennis player from Indonesia, [1] who represented his native country at the 1988 Summer Olympics in Seoul, South Korea. [2] There he lost in the first round of the men's doubles competition to USA's eventual gold medalists Ken Flach and Robert Seguso, while partnering Suharyadi Suharyadi. [3]