1991 Donnay Indoor Championships – Singles

Boris Becker was the defending champion, but retired from his semifinals match this year.

Singles
1991 Donnay Indoor Championships
Champion	Guy Forget
Runner-up	Andrei Cherkasov
Score	6–3, 7–5, 3–6, 7–6
Draw	32
Seeds	8

Main article: 1991 Donnay Indoor Championships

Guy Forget won the title, defeating Andrei Cherkasov 6–3, 7–5, 3–6, 7–6 in the final.^[1]

Seeds

1. Boris Becker (semifinals, retired)
2. Stefan Edberg (semifinals)
3. Andre Agassi (first round)
4. Guy Forget (champion)
5. Jonas Svensson (first round)
6. Andrei Chesnokov (quarterfinals)
7. Michael Chang (quarterfinals)
8. Jakob Hlasek (quarterfinals)

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	Boris Becker	6	3	2r
	WC	Andrei Cherkasov	2	6	2
								WC	Andrei Cherkasov	3	5	6	6
								4	Guy Forget	6	7	3	7
	4	Guy Forget	3	6	6
	2	Stefan Edberg	6	0	3

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	B Becker	6	3	6
		A Volkov	4	6	3			1	B Becker	7	7
	Q	E Jelen	7	6				Q	E Jelen	6	6
	Q	S Doseděl	6	3											1	B Becker	7	6
	Q	A Boetsch	6	2	6										7	M Chang	5	1
		H Skoff	4	6	4			Q	A Boetsch	3	2
		T Woodbridge	4	3				7	M Chang	6	6
	7	M Chang	6	6																		1	B Becker	6	3	2r
	3	A Agassi	3	6																		WC	A Cherkasov	2	6	2
	Q	C Saceanu	6	7				Q	C Saceanu	4	2
	WC	A Cherkasov	6	6				WC	A Cherkasov	6	6
		J Aguilera	2	2											WC	A Cherkasov	7	6
		H Leconte	7	4	2										6	A Chesnokov	5	1
		G Prpić	6	6	6				G Prpić	4	6
	LL	C Bergström	6	4	4			6	A Chesnokov	6	7
	6	A Chesnokov	3	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	J Svensson	0	4
		M Rosset	6	6					M Rosset	6	6
		C-U Steeb	2	5					R Agénor	4	3
		R Agénor	6	7												M Rosset	2	5
	WC	E Masso	6	6	6										4	G Forget	6	7
		R Fromberg	3	7	3			WC	E Masso	1	2
		A Mansdorf	6	3	3			4	G Forget	6	6
	4	G Forget	4	6	6																	4	G Forget	3	6	6
	8	J Hlasek	6	6																		2	S Edberg	6	0	3
		M Larsson	3	2				8	J Hlasek	6	7
		M Wilander	6	7					M Wilander	1	5
		O Camporese	4	6											8	J Hlasek	1	2
		K Nováček	6	6	3										2	S Edberg	6	6
	WC	P Cash	2	7	6			WC	P Cash	6	1	4
		M Gustafsson	0	4				2	S Edberg	3	6	6
	2	S Edberg	6	6