1991 Czechoslovak Open – Singles

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.

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

Main article: 1991 Czechoslovak Open

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

Seeds

1. Magnus Gustafsson (final)
2. Karel Nováček (champion)
3. Goran Prpić (first round)
4. Horst Skoff (quarterfinals)
5. Jordi Arrese (second round)
6. Guillermo Pérez Roldán (semifinals)
7. Horacio de la Peña (quarterfinals)
8. Nicklas Kulti (first round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

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