2021 Ostrava Challenger – Singles

Aslan Karatsev was the defending champion[1] but chose not to defend his title.

Singles
2021 Ostrava Challenger
Champion	Benjamin Bonzi
Runner-up	Renzo Olivo
Final score	6–4, 6–4

Benjamin Bonzi won the title after defeating Renzo Olivo 6–4, 6–4 in the final.

Seeds

Grégoire Barrère (second round)
Thiago Seyboth Wild (first round)
Benjamin Bonzi (champion)
Arthur Rinderknech (semifinals, retired)
Marc Polmans (quarterfinals)
Maxime Cressy (first round)
Alejandro Tabilo (second round)
Mohamed Safwat (first round)

Draw

Key

Finals

	Semifinals							Final

		Renzo Olivo	5

	4	Arthur Rinderknech	4^r
									Renzo Olivo	4	4

								3	Benjamin Bonzi	6	6
	3	Benjamin Bonzi	6	4	7⁷

		Elias Ymer	3	6	6⁵

Top half

	First round							Second round							Quarterfinals							Semifinals

	1	G Barrère	7¹¹	7
	Q	O Otte	6⁹	5				1	G Barrère	6	4	3
		Z Kolář	6	4	2				TM Etcheverry	3	6	6
		TM Etcheverry	1	6	6											TM Etcheverry	4	4
	Q	L Miedler	3	6	4											R Olivo	6	6
		R Olivo	6	3	6				R Olivo	6	6
		R Haase	2	6	4			7	A Tabilo	2	3
	7	A Tabilo	6	4	6																		R Olivo	5
	4	A Rinderknech	6	6																		4	A Rinderknech	4^r
		M Bourgue	4	0				4	A Rinderknech	7	6
		B Schnur	6	1	6				B Schnur	5	4
	Alt	MT Barrios Vera	2	6	1										4	A Rinderknech	3	6	6
		P Polansky	3	5											Q	L Klein	6	3	4
	Q	L Klein	6	7				Q	L Klein	7⁷	4	6
		L Rosol	6⁴	6	7				L Rosol	6²	6	2
	8	M Safwat	7⁷	2	5

Bottom half

	First round							Second round							Quarterfinals							Semifinals

	5	M Polmans	6	6
		B Kavčič	3	3				5	M Polmans	6	6
		D Istomin	0	6	6				D Istomin	3	0
		L Lacko	6	1	4										5	M Polmans	4	2
		C Lestienne	2	0											3	B Bonzi	6	6
	WC	J Lehečka	6	6				WC	J Lehečka	3	4
		R Safiullin	2	1				3	B Bonzi	6	6
	3	B Bonzi	6	6																		3	B Bonzi	6	4	7⁷
	6	M Cressy	6	6⁵	4																		E Ymer	3	6	6⁵
		E Ymer	3	7⁷	6				E Ymer	6	6
	WC	P Rikl	4	2					S Stakhovsky	1	2
		S Stakhovsky	6	6												E Ymer	7	6
		S Báez	6	6											Q	A Molčan	5	3
	WC	Martin Krumich	2	2					S Báez	6	1	2^r
	Q	A Molčan	6	6				Q	A Molčan	4	6	4
	2	T Seyboth Wild	1	4

References

"Karatsev Goes Back-To-Back, Wins Ostrava Open". September 6, 2020.

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