Singles
2021 Geneva Open
Champion	Casper Ruud
Runner-up	Denis Shapovalov
Score	7–6(8–6), 6–4
Draw	28 (4 Q / 3 WC )
Seeds	8

Alexander Zverev was the defending champion from when the event was held in 2019, but chose not to defend his title.^[1]

Casper Ruud won the title, defeating Denis Shapovalov in the final, 7–6^(8–6), 6–4.

Seeds

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

Draw

Finals

	Semifinals							Final
		Pablo Andújar	3	2
	3	Casper Ruud	6	6
								3	Casper Ruud	78	6
								2	Denis Shapovalov	66	4
	Q	Pablo Cuevas	4	5
	2	Denis Shapovalov	6	7

Top half

	First round							Second round							Quarterfinals							Semifinals
								1	R Federer	4	6	4
		J Thompson	0	4					P Andújar	6	4	6
		P Andújar	6	6												P Andújar	4	6	6
		M Čilić	65	1											WC	D Stricker	6	4	4
	WC	D Stricker	77	6				WC	D Stricker	7	6
		M Fucsovics	7	7					M Fucsovics	5	4
	Q	H Laaksonen	5	5																			P Andújar	3	2
																						3	C Ruud	6	6
								3	C Ruud	7	6
		T Sandgren	6	6					T Sandgren	5	2
		S Caruso	3	4											3	C Ruud	2	6	6
		F López	78	6												D Koepfer	6	1	4
	LL	D Altmaier	66	4					F López	5	77	3
		D Koepfer	68	77	6				D Koepfer	7	61	6
	7	B Paire	710	65	4

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	A Mannarino	3	77	3
	WC	A Cazaux	6	65	6			WC	A Cazaux	2	4
	Q	P Cuevas	77	6				Q	P Cuevas	6	6
		R Opelka	65	2											Q	P Cuevas	77	6
		F Verdasco	65	4											4/WC	G Dimitrov	63	3
	Q	I Ivashka	77	6				Q	I Ivashka	4	4
								4/WC	G Dimitrov	6	6
																						Q	P Cuevas	4	5
	6	F Fognini	6	6																		2	D Shapovalov	6	7
		G Pella	2	2				6	F Fognini	3	77	1
		T Monteiro	79	3	5				L Đere	6	62	6
		L Đere	67	6	7											L Đere	4	4
		S Travaglia	3	0r											2	D Shapovalov	6	6
	Q	M Cecchinato	6	3				Q	M Cecchinato	77	5	1
								2	D Shapovalov	64	7	6

Qualifying

Qualifying draw

First qualifier

	First round							Qualifying competition
	1	Ilya Ivashka	6	6
	WC	Li Hanwen	0	3
								1	Ilya Ivashka	6	6
								5	Mackenzie McDonald	4	3
		Prajnesh Gunneswaran	3	6	3
	5	Mackenzie McDonald	6	3	6

Second qualifier

	First round							Qualifying competition
	2	Marco Cecchinato	6	6
		Illya Marchenko	3	4
								2	Marco Cecchinato	6	77
								8	Daniel Altmaier	1	65
		Marc-Andrea Hüsler	65	2
	8	Daniel Altmaier	77	6

Third qualifier

	First round							Qualifying competition
	3	Mikhail Kukushkin	3	1
		Alejandro Tabilo	6	6
									Alejandro Tabilo	6	1	3
									Henri Laaksonen	2	6	6
		Henri Laaksonen	6	5	6
	7	Cedrik-Marcel Stebe	4	7	0

Fourth qualifier

	First round							Qualifying competition
	4	Pablo Cuevas	6	4	6
	WC	Jakub Paul	3	6	3
								4	Pablo Cuevas	6	6
									Lorenzo Giustino	2	4
		Lorenzo Giustino	6	6
	6	Peter Gojowczyk	2	3

References

External links

• Main draw
• Qualifying draw