2021 Andalucía Challenger – Singles

Pedro Martínez was the defending champion^[1] but chose not to defend his title.

Singles
2021 Andalucía Challenger
Champion	Gianluca Mager
Runner-up	Jaume Munar
Score	2–6, 6–3, 6–2

Main article: 2021 Andalucía Challenger

Gianluca Mager won the title after defeating Jaume Munar 2–6, 6–3, 6–2 in the final.

Seeds

1. Roberto Carballés Baena (first round)
2. Norbert Gombos (first round)
3. Jaume Munar (final)
4. Gianluca Mager (champion)
5. Pedro Sousa (second round)
6. Taro Daniel (quarterfinals)
7. Damir Džumhur (second round)
8. Evgeny Donskoy (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
		Alessandro Giannessi	77	4	1
	4	Gianluca Mager	64	6	6
								4	Gianluca Mager	2	6	6
								3	Jaume Munar	6	3	2
	3	Jaume Munar	77	7
	Alt	Mario Vilella Martínez	64	5

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	R Carballés Baena	6	3	3
		H Laaksonen	1	6	6				H Laaksonen	3	3
		M Cressy	1	63					M Kližan	6	6
		M Kližan	6	77												M Kližan	0	3
		J Domingues	3	4												A Giannessi	6	6
		A Giannessi	6	6					A Giannessi	6	6
	PR	A Kuznetsov	77	2	1			5	P Sousa	4	3
	5	P Sousa	62	6	6																		A Giannessi	77	4	1
	4	G Mager	6	6																		4	G Mager	64	6	6
	Q	C Sánchez Jover	3	2				4	G Mager	6	6
	Alt	E Ymer	6	6				Alt	E Ymer	4	3
	Q	J Barranco Cosano	1	2											4	G Mager	4	6	6
		M Polmans	3	1												R Marcora	6	3	2
		R Marcora	6	6					R Marcora	6	7
		E Gulbis	6	6					E Gulbis	4	5
	8	E Donskoy	2	2

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	T Daniel	6	6
	WC	L Borg	1	2				6	T Daniel	7	6
	WC	C Gómez-Herrera	712	77				WC	C Gómez-Herrera	5	4
	WC	C Gimeno Valero	610	65											6	T Daniel	6	2	3
	Q	V Kopřiva	6	3	7										3	J Munar	4	6	6
		L Rosol	3	6	5			Q	V Kopřiva	4	2
		S Ofner	63	4				3	J Munar	6	6
	3	J Munar	77	6																		3	J Munar	77	7
	7	D Džumhur	6	6																		Alt	M Vilella Martínez	64	5
	Q	N Sánchez Izquierdo	4	4				7	D Džumhur	3	4
	Alt	M Vilella Martínez	77	6				Alt	M Vilella Martínez	6	6
		L Giustino	64	0											Alt	M Vilella Martínez	6	6
		D Petrović	6	3	4											N Milojević	3	4
		N Milojević	3	6	6				N Milojević	6	7
	Alt	M Janvier	6	64	6			Alt	M Janvier	1	5
	2	N Gombos	4	77	3