2021 Los Cabos Open – Singles

Diego Schwartzman was the reigning champion from when the tournament was last held in 2019,^[1] but chose to compete at the Summer Olympics instead.

Singles
2021 Los Cabos Open
Champion	Cameron Norrie
Runner-up	Brandon Nakashima
Score	6–2, 6–2
Draw	28 (4 Q / 3 WC )
Seeds	8

Main article: 2021 Los Cabos Open

Cameron Norrie won his maiden ATP Tour title, defeating Brandon Nakashima in the final, 6–2, 6–2.^[2]

Seeds

The top 4 seeds receive a bye into the second round.

1. Cameron Norrie (champion)
2. John Isner (semifinals)
3. Taylor Fritz (semifinals)
4. Sam Querrey (second round)
5. Jordan Thompson (quarterfinals)
6. Steve Johnson (quarterfinals)
7. Andreas Seppi (first round)
8. Mackenzie McDonald (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	Cameron Norrie	6	6
	3	Taylor Fritz	3	1
								1	Cameron Norrie	6	6
									Brandon Nakashima	2	2
		Brandon Nakashima	7	6
	2	John Isner	5	4

Top half

	First round							Second round							Quarterfinals							Semifinals
								1	C Norrie	77	6
	Q	M Ebden	5	1					E Ymer	64	3
		E Ymer	7	6											1	C Norrie	6	6
	WC	T Kokkinakis	6	64	63										Q	E Escobedo	1	1
		D Kudla	4	77	77				D Kudla	4	69
	Q	E Escobedo	6	6				Q	E Escobedo	6	711
	8	M McDonald	3	4																		1	C Norrie	6	6
																						3	T Fritz	3	1
								3	T Fritz	6	69	7
		P Gojowczyk	3	2					I Marchenko	1	711	5
		I Marchenko	6	6											3	T Fritz	6	6
	Q	A Sarkissian	7	0	4										6	S Johnson	4	4
		Y Uchiyama	5	6	6				Y Uchiyama	64	3
	WC	G López Villaseñor	64	2				6	S Johnson	77	6
	6	S Johnson	77	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	J Thompson	6	7
	WC	I Karlović	4	5				5	J Thompson	3	6	7
		J Rodionov	3	1r					S Ofner	6	4	5
		S Ofner	6	3											5	J Thompson	3	6	64
		B Nakashima	6	65	6											B Nakashima	6	4	77
		J. J. Wolf	3	77	2				B Nakashima	6	6
								4	S Querrey	3	4
																							B Nakashima	7	6
	7	A Seppi	6	2	3																	2	J Isner	5	4
		A Bolt	0	6	6				A Bolt	6	6
		E Gómez	6	6					E Gómez	3	1
	Q	N Mejía	4	1												A Bolt	3	4
		J Jung	1	4											2	J Isner	6	6
		E Donskoy	6	6					E Donskoy	5	6	65
								2	J Isner	7	3	77

Qualifying

Seeds

1. Ernesto Escobedo (qualified)
2. Ruben Bemelmans (qualifying competition)
3. Matthew Ebden (qualified)
4. Yosuke Watanuki (qualifying competition, retired)
5. Nicolás Mejía (qualified)
6. John-Patrick Smith (qualifying competition)
7. Alex Rybakov (qualifying competition)
8. Raymond Sarmiento (first round)

Qualifiers

1. Ernesto Escobedo
2. Nicolás Mejía
3. Matthew Ebden
4. Alexander Sarkissian

Qualifying draw

First qualifier

	First round							Qualifying competition
	1	Ernesto Escobedo	77	6
		Ricardo Rodríguez	64	3
								1	Ernesto Escobedo	6	77
								7	Alex Rybakov	2	63
		Gage Brymer	3	4
	7	Alex Rybakov	6	6

Second qualifier

	First round							Qualifying competition
	2	Ruben Bemelmans	77	77
	WC	Lucas Gómez	63	65
								2	Ruben Bemelmans	3	62
								5	Nicolás Mejía	6	77
		Alex Hernández	3	6	5
	5	Nicolás Mejía	6	3	7

Third qualifier

	First round							Qualifying competition
	3	Matthew Ebden	6	6
		Harri Heliövaara	2	2
								3	Matthew Ebden	6	7
								6	John-Patrick Smith	4	5
	WC	Oscar Manuel Sánchez Hirales	1	2
	6	John-Patrick Smith	6	6

Fourth qualifier

	First round							Qualifying competition
	4	Yosuke Watanuki	77	4	6
		Luis Patiño	63	6	2
								4	Yosuke Watanuki	5	77	5r
									Alexander Sarkissian	7	64	5
		Alexander Sarkissian	6	6
	8	Raymond Sarmiento	4	1