1990 Czechoslovak Open

The 1990 Czechoslovak Open, also known as the Prague Open was a men's tennis tournament played on outdoor clay courts at the I. Czech Lawn Tennis Club in Prague, Czechoslovakia that was part of the ATP World Series (Designated Week) of the 1990 ATP Tour. It was the fourth edition of the tournament and was held from 6 August until 12 August 1990. Eighth-seeded Jordi Arrese won the singles title.^[3]

1990 Czechoslovak Open
Date	6–12 August
Edition	4th
Category	World Series
Draw	32S / 16D
Prize money	$148,400
Surface	Clay / outdoor
Location	Prague, Czechoslovakia
Venue	I. Czech Lawn Tennis Club
Champions
Singles
Jordi Arrese[1]
Doubles
Vojtěch Flégl / Daniel Vacek[2]

Finals

Singles

Main article: 1990 Czechoslovak Open – Singles

Jordi Arrese defeated Nicklas Kulti 7–6, 7–6

• It was Arrese's 2nd singles title of the year and of his career.

Doubles

Main article: 1990 Czechoslovak Open – Doubles

Vojtěch Flégl / Daniel Vacek defeated George Cosac / Florin Segărceanu 5–7, 6–4, 6–3