Table:
text: Zoran Primorac
Achievements
Achievements
Year_ Competition Venue Placed Event
1988 Olympic Games Seoul Silver Men`s doubles
1987 World Championships New Delhi Bronze Men`s team
1987 World Championships New Delhi Silver Men`s doubles
1991 World Championships Chiba Silver Men`s team
1993 World Championships Gothenburg Bronze Men`s singles
1995 World Championships Tianjin Silver Men`s doubles
1999 World Championships Eindhoven Bronze Men`s doubles
1986 European Championships Prague Bronze Men`s doubles
1988 European Championships Paris Silver Men`s doubles
1990 European Championships Gothenburg Bronze Men`s team
1990 European Championships Gothenburg Gold Men`s doubles
1992 European Championships Stuttgart Bronze Men`s singles
1992 European Championships Stuttgart Bronze Mixed doubles
1994 European Championships Birmingham Bronze Men`s singles

Question: What was the pre-1987 competition for Zoran Primorac?