Guillermo Pérez Roldán defeated Jay Berger 3–2 after Berger retired to win the 1987 Buenos Aires Grand Prix singles competition. Berger was the defending champion.
The 1986 Bavarian Tennis Championships was a men's Grand Prix Tennis Circuit held in Munich, West Germany. The tournament was held from 5 May through 12 May 1986. It is now part of the ATP Tour. Emilio Sánchez won the singles title.
The 1985 Nabisco Grand Prix was a professional men's tennis circuit held that year. It consisted of 71 tournaments held in 19 different countries. The tour incorporated the four ITF grand slam tournaments, three World Championship Tennis tournaments and the Grand Prix tournaments. Total prize money for the circuit was $23 million. The circuit was administered by the Men's International Professional Tennis Council (MIPTC). In November 1985 the MIPTC sued player–management agencies ProServ and IMG alleging that these firms were holding the tennis game hostage and were 'exerting extensive power over players'.
The 1987 Athens Open was a men's tennis tournament played on outdoor clay courts in Athens in Greece that was part of the 1987 Nabisco Grand Prix. It was the second edition of the tournament and was held from 15 June until 22 June 1987. Fourth-seeded Guillermo Pérez Roldán won the singles title.
Patrik Kühnen and Tore Meinecke were the defending champions but they competed with different partners that year, Kühnen with Udo Riglewski and Meinecke with Ricki Osterthun.
Horst Skoff was the defending champion but did not compete that year.
The 1989 Swatch Open, also known as the Nice Open, was a men's tennis tournament played on outdoor clay courts at the Nice Lawn Tennis Club in Nice, France, and was part of the 1989 Nabisco Grand Prix. It was the 18th edition of the tournament and took place from 17 April through 23 April 1989. Sixth-seeded Andrei Chesnokov won the singles title.
Jorge Lozano and Todd Witsken were the defending champions, but neither of them entered the event that year.
Brian Garrow and Sven Salumaa won the title, defeating Nelson Aerts and Fernando Roese 7–5, 6–3, in the final.
Tore Meinecke and Ricki Osterthun were the defending champions, but Osterthun did not participate this year. Meinecke partnered Tomás Carbonell, losing in the first round.
Libor Pimek and Blaine Willenborg were the defending champions, but did not participate this year.
The 1985 Dutch Open was a Grand Prix men's tennis tournament staged in Hilversum, Netherlands. The tournament was played on outdoor clay courts and was held from 22 July until 28 July 1985. It was the 28th edition of the tournament. Ricki Osterthun won the singles title.
The 1987 Grand Prix de Tennis de Toulouse was a men's tennis tournament played on indoor carpet courts in Toulouse, France that was part of the Regular Series of the 1987 Grand Prix tennis circuit. It was the sixth edition of the tournament and was held from 12 October until 18 October 1987. First-seeded Tim Mayotte won the singles title.
The 1988 Grand Prix de Tennis de Toulouse was a men's tennis tournament played on indoor carpet courts in Toulouse, France that was part of the Regular Series of the 1988 Grand Prix tennis circuit. It was the seventh edition of the tournament and was held from 10 October until 16 October 1988. Second-seeded Jimmy Connors won the singles title.
Ricki is a unisex given name. Notable people with the name include:
This article displays the qualifying draw for men's singles at the 1990 Australian Open.
Rick Leach and Tim Pawsat were the defending champions, but none competed this year.
Ricki Osterthun and Udo Riglewski were the defending champions, but Osterthun did not compete this year. Riglewski teamed up with Michael Stich and lost in the first round to Fabrice Santoro and Thierry Tulasne.
Carlos di Laura and Marcelo Filippini were the defending champions, but none competed this year.
The 1986 Dutch Open – Singles was an event of the 1975 Dutch Open tennis tournament and was played on outdoor clay courts at 't Melkhuisje in Hilversum in the Netherlands from 28 July until 3 August 1986 The draw comprised 32 players and 8 of them were seeded. Ricki Osterthun was the defending Dutch Open singles champion but lost in the second round. Seventh-seeded Thomas Muster won the title by defeating Jakob Hlasek in the final, 6–1, 6–3, 6–3.
Dan Cassidy was the defending champion, but did not compete this year.
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