2021 ATP Lyon Open – Singles

Benoît Paire was the defending champion from when the event was last held in 2019, but chose to participate in Geneva instead.

Singles
2021 ATP Lyon Open
Champion	Stefanos Tsitsipas
Runner-up	Cameron Norrie
Score	6–3, 6–3
Draw	28 (4 Q / 3 WC )
Seeds	8

Main article: 2021 ATP Lyon Open

Stefanos Tsitsipas won the title, defeating Cameron Norrie in the final 6–3, 6–3.

Seeds

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

1. Dominic Thiem (second round)
2. Stefanos Tsitsipas (champion)
3. Diego Schwartzman (second round)
4. David Goffin (second round)
5. Gaël Monfils (second round)
6. Jannik Sinner (second round)
7. Félix Auger-Aliassime (first round)
8. Karen Khachanov (semifinals)

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
		Cameron Norrie	6	6
	8	Karen Khachanov	1	1
									Cameron Norrie	3	3
								2/WC	Stefanos Tsitsipas	6	6
	Alt	Lorenzo Musetti	6	3	0
	2/WC	Stefanos Tsitsipas	4	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
								1/WC	D Thiem	3	2
		C Moutet	5	3					C Norrie	6	6
		C Norrie	7	6												C Norrie	6	3	6
	LL	A Rinderknech	6	64	6										LL	A Rinderknech	3	6	3
	Q	M Ymer	3	77	2			LL	A Rinderknech	67	6	7
		A Karatsev	6	3	4			6	J Sinner	79	2	5
	6	J Sinner	0	6	6																		C Norrie	6	6
																						8	K Khachanov	1	1
								3	D Schwartzman	3	5
		R Gasquet	5	6	6				R Gasquet	6	7
	Q	G Barrère	7	4	3											R Gasquet	1	63
	Q	J Sousa	3	68											8	K Khachanov	6	77
	Q	K Majchrzak	6	710				Q	K Majchrzak	64	3
	WC	B Bonzi	1	6	64			8	K Khachanov	77	6
	8	K Khachanov	6	4	77

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	F Auger-Aliassime	63	6	5
	Alt	L Musetti	77	3	7			Alt	L Musetti	6	1	6
		P-H Herbert	65	4					S Korda	3	6	4
		S Korda	77	6											Alt	L Musetti	6	77
		A Bedene	6	6												A Bedene	3	62
		G Simon	2	3					A Bedene	77	6
								4	D Goffin	64	3
																						Alt	L Musetti	6	3	0
	5	G Monfils	7	6																		2/WC	S Tsitsipas	4	6	6
	LL	T Seyboth Wild	5	4				5	G Monfils	6	3	62
		Y Nishioka	3	6	6				Y Nishioka	4	6	77
		U Humbert	6	3	4											Y Nishioka	3	4
		T Paul	6	6											2/WC	S Tsitsipas	6	6
		J-W Tsonga	3	3					T Paul	1	4
								2/WC	S Tsitsipas	6	6

Qualifying

Seeds

1. Lorenzo Musetti (moved to the main draw)
2. Mikael Ymer (qualified)
3. João Sousa (qualified)
4. Grégoire Barrère (qualified)
5. Arthur Rinderknech (qualifying competition, lucky loser)
6. Thiago Seyboth Wild (qualifying competition, lucky loser)
7. Kamil Majchrzak (qualified)
8. Antoine Hoang (qualifying competition)

Qualifiers

1. Kamil Majchrzak
2. Mikael Ymer
3. João Sousa
4. Grégoire Barrère

Lucky losers

1. Arthur Rinderknech
2. Thiago Seyboth Wild

Qualifying draw

First qualifier

	First round							Qualifying competition
	Alt	Peter Polansky	3	4
		Alessandro Giannessi	6	6
									Alessandro Giannessi	4	3
								7	Kamil Majchrzak	6	6
		Liam Broady	6	62	4
	7	Kamil Majchrzak	4	77	6

Second qualifier

	First round							Qualifying competition
	2	Mikael Ymer	6	1	6
		Martin Kližan	3	6	4
								2	Mikael Ymer	6	4	6
								6	Thiago Seyboth Wild	4	6	1
	WC	Kyrian Jacquet	1	4
	6	Thiago Seyboth Wild	6	6

Third qualifier

	First round							Qualifying competition
	3	João Sousa	6	6
	Alt	Roberto Marcora	3	4
								3	João Sousa	6	3	6
								5	Arthur Rinderknech	4	6	3
	Alt	Kimmer Coppejans	5	6	62
	5	Arthur Rinderknech	7	3	77

Fourth qualifier

	First round							Qualifying competition
	4	Grégoire Barrère	6	6
		Evgeny Donskoy	2	3
								4	Grégoire Barrère	6	65	6
								8	Antoine Hoang	3	77	1
		Go Soeda	1	1
	8	Antoine Hoang	6	6

External links

• Main draw
• Qualifying draw