Shimizu City CH 1980
Markus Gunthardt won the title, beating Cliff Letcher 2–6 6–4 6–3 in the final.
Statistics appear here as main-draw matches end.
Markus Gunthardt won the title, beating Cliff Letcher 2–6 6–4 6–3 in the final.
Statistics appear here as main-draw matches end.