2021 MercedesCup – Singles

Singles
2021 MercedesCup
2019 Champion	Matteo Berrettini

Main article: 2021 MercedesCup

Matteo Berrettini was the defending champion from when the event was last held in 2019, but chose not to participate since he was still competing in the 2021 French Open at the beginning of the tournament.

Seeds

The top four seeds received a bye into the second round.

1. Denis Shapovalov (Quarterfinals)
2. Hubert Hurkacz (Second round)
3. Félix Auger-Aliassime
4. Alex de Minaur (Quarterfinals)
5. Nikoloz Basilashvili (Second round)
6. Ugo Humbert (Quarterfinals)
7. Adrian Mannarino (First round)
8. John Millman (Withdrew)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

Finals

	Semifinals							Final
		Marin Čilić	6	1
	WC	Jurij Rodionov	3	0r
									Marin Čilić
								3	Félix Auger-Aliassime
	3	Félix Auger-Aliassime	6	7
		Sam Querrey	4	5

Top half

	First Round							Second Round							Quarterfinals							Semifinals
								1	D Shapovalov	6	62	6
		F López	6	6					F López	2	77	3
		A Popyrin	4	4											1	D Shapovalov	5	63
		M Čilić	7	6												M Čilić	7	77
	WC	R Molleker	5	3					M Čilić	6	6
	WC	D Brown	3	64				5	N Basilashvili	3	2
	5	N Basilashvili	6	77																			M Čilić
																						WC	J Rodionov
								4	A de Minaur	68	6	6
		G Pella	3	4					J Thompson	710	3	4
		J Thompson	6	6											4	A de Minaur	6	3	64
		D Koepfer	6	3	2										WC	J Rodionov	3	6	77
	WC	J Rodionov	2	6	6			WC	J Rodionov	5
	Q	P Gojowczyk	5	6	6			Q	P Gojowczyk	3r
	LL	I Ivashka	7	4	2

Bottom half

	First Round							Second Round							Quarterfinals							Semifinals
	6	U Humbert	6	6
		M Fucsovics	3	1				6	U Humbert	711	6
		J Chardy	4	4				WC	Y Hanfmann	69	2
	WC	Y Hanfmann	6	6											6	U Humbert	65	68
		G Simon	4	5											3	F Auger-Aliassime	77	710
		L Harris	6	7					L Harris	3	64
								3	F Auger-Aliassime	6	77
																						3	F Auger-Aliassime	6	7
	7	A Mannarino	3	2																			S Querrey	4	5
	Q	J Duckworth	6	6				Q	J Duckworth	4	67
	Q	A Çelikbilek	4	1					S Querrey	6	79
		S Querrey	6	6												S Querrey	64	77	6
	Q	R Albot	64	65											WC	D Stricker	77	64	3
	WC	D Stricker	77	77				WC	D Stricker	77	77
								2	H Hurkacz	65	65

Qualifying

Seeds

1. Sam Querrey (Moved to main draw)
2. Gilles Simon (Moved to main draw)
3. Jiří Veselý (First round)
4. Emil Ruusuvuori (Qualifying competition)
5. Marcos Giron (First round)
6. Lucas Pouille (First round)
7. Radu Albot (Qualified)
8. Ilya Ivashka (Qualifying competition, Lucky loser)

Qualifiers

1. James Duckworth
2. Peter Gojowczyk
3. Altuğ Çelikbilek
4. Radu Albot

Lucky loser

1. Ilya Ivashka

Draw

First Qualifier

	First Round							Qualifying Competition
	Alt	Luke Saville	78	4	4
	Alt	James Duckworth	66	6	6
								Alt	James Duckworth	77	3	7
								8	Ilya Ivashka	65	6	5
	WC	Daniel Masur	0	64
	8	Ilya Ivashka	6	77

Second Qualifier

	First Round							Qualifying Competition
	Alt	Sergiy Stakhovsky	1	64
	Alt	Peter Gojowczyk	6	77
								Alt	Peter Gojowczyk	6	6
								Alt	Grégoire Barrère	2	4
	Alt	Grégoire Barrère	6	6
	5	Marcos Giron	3	2

Third Qualifier

	First Round							Qualifying Competition
	3	Jiří Veselý	77	2	4
	Alt	Dennis Novak	65	6	6
								Alt	Dennis Novak	6	63	5
								Alt	Altuğ Çelikbilek	1	77	7
	Alt	Altuğ Çelikbilek	6	2	6
	6	Lucas Pouille	3	6	3

Fourth Qualifier

	First Round							Qualifying Competition
	4	Emil Ruusuvuori	7	6
	Alt	João Sousa	5	3
								4	Emil Ruusuvuori	65	4
								7	Radu Albot	77	6
	Alt	Christopher O'Connell	3	0r
	7	Radu Albot	6	0

References

• Main Draw
• Qualifying Draw