Singles
2020 Sparkassen ATP Challenger
Final
Champion	Ilya Ivashka
Runner-up	Antoine Hoang
Score	6–4, 3–6, 7–6(7–3)
Events
Singles Doubles
← 2019 · Sparkassen ATP Challenger · 2021 →

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

Ilya Ivashka won the title after defeating Antoine Hoang 6–4, 3–6, 7–6^(7–3) in the final.

	Semifinals							Final
		Alexandre Müller	6	2	2
	5	Antoine Hoang	3	6	6
								5	Antoine Hoang	4	6	63
								2	Ilya Ivashka	6	3	77
	3	Aslan Karatsev	4	4
	2	Ilya Ivashka	6	6

	First round							Second round							Quarterfinals							Semifinals
	1	Y Uchiyama	3	4
		A Müller	6	6					A Müller	77	64	6
		J Clarke	6	69	6				J Clarke	62	77	3
	WC	Patric Prinoth	3	711	3											A Müller	65	78	7
		S Ofner	64	1												I Marchenko	77	66	5
		I Marchenko	77	6					I Marchenko	w/o
		H Grenier	5	6	6				H Grenier
	7	J Rodionov	7	4	3																		A Müller	6	2	2
	4	L Musetti	3	65																		5	A Hoang	3	6	6
		R Marcora	6	77					R Marcora	3	64
	SE	L Klein	3	5					J Lenz	6	77
		J Lenz	6	7												J Lenz	78	4	3
	Q	P Kotov	77	4	6										5	A Hoang	66	6	6
		M Cressy	65	6	4			Q	P Kotov	2	4
		A Rinderknech	4	6	65			5	A Hoang	6	6
	5	A Hoang	6	3	77

	First round							Second round							Quarterfinals							Semifinals
	6	F Gaio	6	6
	Q	A Pellegrino	3	4				6	F Gaio	6	7
	Q	A Çelikbilek	6	6				Q	A Çelikbilek	4	5
		Z Kolář	4	2											6	F Gaio	63	3
	LL	A Vatutin	1	3											3	A Karatsev	77	6
	LL	E Karlovskiy	6	6				LL	E Karlovskiy	5	4
		M Marterer	64	2				3	A Karatsev	7	6
	3	A Karatsev	77	6																		3	A Karatsev	4	4
	8	M Kližan	6	6																		2	I Ivashka	6	6
	WC	G Zeppieri	1	3				8	M Kližan	4	2
	WC	L Nardi	64	68					T Macháč	6	6
		T Macháč	77	710												T Macháč	64	65
		D Masur	3	712	3										2	I Ivashka	77	77
	Q	J Härteis	6	610	6			Q	J Härteis	66	3
		M Viola	1	1				2	I Ivashka	78	6
	2	I Ivashka	6	6

• Main draw
• Qualifying draw