2021 Antalya Challenger III – Singles

Carlos Taberner was the defending champion but was not eligible to compete in the tournament due to his ATP ranking.

Singles
2021 Antalya Challenger III
Champion	Nuno Borges
Runner-up	Ryan Peniston
Score	6–4, 6–3

Main article: 2021 Antalya Challenger III

Nuno Borges won the title after defeating Ryan Peniston 6–4, 6–3 in the final.

Seeds

1. Cem İlkel (second round)
2. Ramkumar Ramanathan (quarterfinals)
3. João Domingues (second round)
4. Duje Ajduković (quarterfinals)
5. Tseng Chun-hsin (first round)
6. Nuno Borges (champion)
7. Geoffrey Blancaneaux (second round)
8. Gonçalo Oliveira (first round, retired)

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
		Javier Barranco Cosano	4	62
		Ryan Peniston	6	77
									Ryan Peniston	4	3
								6	Nuno Borges	6	6
	6	Nuno Borges	6	6
		Eduard Esteve Lobato	3	3

Top half

	First round							Second round							Quarterfinals							Semifinals
	1/WC	C İlkel	6	6
	Alt	Y-h Hsu	3	4				1/WC	C İlkel	63	3
		J Barranco Cosano	77	6					J Barranco Cosano	77	6
		O Roca Batalla	64	4												J Barranco Cosano	6	4	6
	Q	M Veldheer	1	4												FC Jianu	1	6	4
		FC Jianu	6	6					FC Jianu	65	6	6
		M Zekić	62	3				7	G Blancaneaux	77	4	0
	7	G Blancaneaux	77	6																			J Barranco Cosano	4	62
	4	D Ajduković	6	5	7																		R Peniston	6	77
		N Chappell	4	7	5			4	D Ajduković	6	6
	Q	T Cação	6	6				Q	T Cação	2	1
	WC	A Metreveli	3	2											4	D Ajduković	2	7	62
		R Peniston	2	6	6											R Peniston	6	5	77
		N Fatić	6	1	3				R Peniston	2	6	6
		D Svrčina	6	0					D Svrčina	6	4	2
	8	G Oliveira	4	0r

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	N Borges	6	6
		E Kırkın	4	3				6	N Borges	6	6
		E Tiurnev	65	7	3r			WC	Y Erel	4	0
	WC	Y Erel	77	5	3										6	N Borges	6	6
		N Hardt	6	6												N Hardt	2	4
		A Dougaz	2	2					N Hardt	6	7
		R Bonadio	64	6	1			3	J Domingues	4	5
	3	J Domingues	77	4	6																	6	N Borges	6	6
	5	C-h Tseng	2	7	67																		E Esteve Lobato	3	3
		F Misolic	6	5	79				F Misolic	2	3
	Alt	D-h Lee	2	3					E Esteve Lobato	6	6
		Eduard Esteve Lobato	6	6												E Esteve Lobato	6	6
		N Sánchez Izquierdo	1	3											2	R Ramanathan	2	0
	Q	O Crawford	6	6				Q	O Crawford	5	4
	Q	L Wessels	2	3				2	R Ramanathan	7	6
	2	R Ramanathan	6	6

External links

• Main draw
• Qualifying draw