Singles
1991 Czechoslovak Open
Champion	Karel Nováček
Runner-up	Magnus Gustafsson
Score	7–6(7–5), 6–2
Draw	32 (3WC/4Q)
Seeds	8

The 1991 PCzechoslovak Open was a men's tennis tournament played on Clay in Prague, Czech Republic that was part of the International Series of the 1991 ATP Tour. Jordi Arrese was the defending champion, but lost in the second round to Thomas Muster.

Karel Nováček won the title by defeating Magnus Gustafsson 7–6^(7–5), 6–2 in the final.^[1]

Seeds

Draw

Finals

	Semifinals							Final
	1	Magnus Gustafsson	7	65	6
	6	Guillermo Pérez Roldán	5	77	2
								1	Magnus Gustafsson	65	2
								2	Karel Nováček	77	6
		Thomas Muster	1	6	5
	2	Karel Nováček	6	2	7

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	M Gustafsson	6	6
	Q	Lukas Thomas	3	2				1	M Gustafsson	6	6
		M Filippini	1	2					C Costa	4	1
		C Costa	6	6											1	M Gustafsson	6	6
		P Rebolledo	4	1												A Boetsch	2	2
	Q	L Pimek	6	6				Q	L Pimek	2	3
		A Boetsch	6	6					A Boetsch	6	6
	8	N Kulti	1	4																		1	M Gustafsson	7	65	6
	4	H Skoff	6	6																		6	G Pérez Roldán	5	77	2
	WC	R Vašek	1	1				4	H Skoff	6	6
		D Poliakov	3	6	6				D Poliakov	4	1
	Q	M Trněný	6	3	2										4	H Skoff	6	4	62
		R Azar	4	4											6	G Pérez Roldán	3	6	77
		CU Steeb	6	6					CU Steeb	4	0
		JF Altur	4	4				6	G Pérez Roldán	6	6
	6	G Pérez Roldán	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	J Arrese	6	6
		F Davín	2	2				5	J Arrese	2	3
		D Nargiso	4	2					T Muster	6	6
		T Muster	6	6												T Muster	6	6
	Q	P Vojtíšek	5	3												M Larsson	3	0
	WC	K Kučera	7	6				WC	K Kučera	1	0
		M Larsson	6	6					M Larsson	6	6
	3	G Prpić	2	4																			T Muster	1	6	5
	7	H de la Peña	63	6	6																	2	K Nováček	6	2	7
		P Arraya	77	0	2			7	H de la Peña	6	6
		J Aguilera	6	6					J Aguilera	2	3
	WC	J Kodeš Jr.	3	4											7	H de la Peña	0	4
		A Olhovskiy	63	7	4										2	K Nováček	6	6
		R Furlan	77	5	6				R Furlan	6	4	65
		V Paloheimo	4	3				2	K Nováček	4	6	77
	2	K Nováček	6	6

References

External links

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