2021 Engie Open Andrézieux-Bouthéon 42 – Singles

Ysaline Bonaventure was the defending champion, but chose not to participate.^[1]

Singles
2021 Engie Open Andrézieux-Bouthéon 42
Champion	Harmony Tan
Runner-up	Jaqueline Cristian
Score	3–6, 6–2, 6–1

Main article: 2021 Engie Open Andrézieux-Bouthéon 42

Harmony Tan won the title, defeating Jaqueline Cristian in the final, 3–6, 6–2, 6–1.

Seeds

1. Océane Dodin (second round)
2. Anna-Lena Friedsam (quarterfinals)
3. Stefanie Vögele (second round)
4. Katarina Zavatska (quarterfinals)
5. Tereza Martincová (second round)
6. Tamara Korpatsch (first round)
7. Viktoriya Tomova (second round)
8. Clara Tauson (second 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
	Q	Urszula Radwańska	3	1
		Jaqueline Cristian	6	6
									Jaqueline Cristian	6	2	1
								WC	Harmony Tan	3	6	6
	WC	Harmony Tan	6	6
	Q	Kathinka von Deichmann	1	0

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	O Dodin	6	6
	Q	S Bandecchi	3	3				1	O Dodin	3	4
		L Pattinama Kerkhove	63	6	4			Q	U Radwańska	6	6
	Q	U Radwańska	77	2	6										Q	U Radwańska	6	6
	Q	S Djoubri	3	1												L Küng	4	1
		C Bucșa	6	6					C Bucșa	1	4
		L Küng	6	7					L Küng	6	6
	6	T Korpatsch	2	5																		Q	U Radwańska	3	1
	3	S Vögele	6	5	6																		J Cristian	6	6
	Q	D Marcinkēviča	4	7	2			3	S Vögele	66	2
		LI Paar	6	6					LI Paar	78	6
		Ç Büyükakçay	3	4												LI Paar	6	2	1
		J Cristian	5	6	6											J Cristian	1	6	6
	WC	D Parry	7	4	2				J Cristian	2	77	6
	WC	E Jacquemot	4	60				8	C Tauson	6	64	3
	8	C Tauson	6	77

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	T Martincová	5	6	6
	Q	F Di Sarra	7	4	0			5	T Martincová	4	67
	Q	G Desperrier	3	1				WC	H Tan	6	79
	WC	H Tan	6	6											WC	H Tan	6	6
	PR	Jia Lu	65	4											4	K Zavatska	0	1
	JE	V Jiménez Kasintseva	77	6				JE	V Jiménez Kasintseva	1	6	2
		G Gatto-Monticone	4	1				4	K Zavatska	6	3	6
	4	K Zavatska	6	6																		WC	H Tan	6	6
	7	V Tomova	6	6																		Q	K von Deichmann	1	0
	WC	A Hesse	3	2				7	V Tomova	0	4
	Q	K von Deichmann	6	6				Q	K von Deichmann	6	6
		X You	4	4											Q	K von Deichmann	7	6
		M Di Giuseppe	4	4											2	A-L Friedsam	5	4
	Q	R Šramková	6	6				Q	R Šramková	3	1
		I de Vroome	3	7	2			2	A-L Friedsam	6	6
	2	A-L Friedsam	6	5	6