Doubles
1990 Yugoslav Open
Final
Champions	Vojtěch Flégl Daniel Vacek
Runners-up	Andrei Cherkasov Andrei Olhovskiy
Score	6–4, 6–4
Details
Draw	16
Seeds	4
Events
Singles Doubles
Croatia Open · 1991 →

The first edition of the ATP tournament in Umag was held from 14 May until 20 May 1990.^[1]

Vojtěch Flégl and Daniel Vacek won the title by defeating Andrei Cherkasov and Andrei Olhovskiy 6–4, 6–4 in the final.^[2][3]

	First round							Quarterfinals							Semifinals							Final
	1	B Taróczy M Vajda	4	3
		A Cherkasov A Olhovskiy	6	6					A Cherkasov A Olhovskiy	7	7
		G Ivanišević G Prpić	6	7					G Ivanišević G Prpić	5	5
		T Nydahl V Solves	2	6												A Cherkasov A Olhovskiy	w/o
	3	E Masso D Pérez	5	6	7										3	E Masso D Pérez
		J Clavet MA Górriz	7	4	5			3	E Masso D Pérez	4	6	6
		T Benhabiles T Tulasne	1	2					R Camargo O Della	6	2	3
		R Camargo O Della	6	6																			A Cherkasov A Olhovskiy	4	4
		V Flégl D Vacek	6	6																			V Flégl D Vacek	6	6
		D Buljević E Rasberger	2	3					V Flégl D Vacek	6	6
		H de la Pena B Uribe	7	6					H de la Pena B Uribe	4	4
	4	G Bloom N Pereira	5	2												V Flégl D Vacek	4	7	7
		L Pimek F Roig	6	7												L Pimek F Roig	6	6	5
		J Pino M Tabares	1	5					L Pimek F Roig	4	6	6
		E Bengoechea M Ingaramo	1	6	6				E Bengoechea M Ingaramo	6	3	3
	2	A Mora B Page	6	0	2

• Official results archive (ATP)
• Official results archive (ITF)