<Tr> <Td> 1989 </Td> <Td> TCH </Td> <Td> Lendl, Ivan Ivan Lendl </Td> <Td> TCH </Td> <Td> Mečíř, Miloslav Miloslav Mečíř </Td> <Td> 6--2, 6--2, 6--2 </Td> </Tr> <Tr> <Td> 1990 </Td> <Td> TCH </Td> <Td> Lendl, Ivan Ivan Lendl </Td> <Td> SWE </Td> <Td> Edberg, Stefan Stefan Edberg </Td> <Td> 4--6, 7--6, 5--2 retired </Td> </Tr> <Tr> <Td> 1991 </Td> <Td> GER </Td> <Td> Becker, Boris Boris Becker </Td> <Td> TCH </Td> <Td> Lendl, Ivan Ivan Lendl </Td> <Td> 1--6, 6--4, 6--4, 6--4 </Td> </Tr> <Tr> <Td> 1992 </Td> <Td> USA </Td> <Td> Courier, Jim Jim Courier </Td> <Td> SWE </Td> <Td> Edberg, Stefan Stefan Edberg </Td> <Td> 6--3, 3--6, 6--4, 6--2 </Td> </Tr>

Who has won the men's single title of the australian open international challenge