Singles
2023 Copa Oster
Champion	Nadia Podoroska
Runner-up	Paula Ormaechea
Score	6–4, 6–2

This was the first WTA 125 tournament in Cali since 2013. Lara Arruabarrena was the champion when the event was last held, but she retired from professional tennis in August 2022.^[1]

Nadia Podoroska won the title, defeating Paula Ormaechea in the final, 6–4, 6–2.^[2]

Seeds

Draw

Finals

	Semifinals							Final
		Nadia Podoroska	6	6
	WC	Emiliana Arango	4	1
									Nadia Podoroska	6	6
									Paula Ormaechea	4	2
		Paula Ormaechea	7	6
	2	Laura Pigossi	5	3

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	RL Jani	0	2
		N Podoroska	6	6					N Podoroska	4	6	6
		J Loeb	3	4					C Monnet	6	3	1
		C Monnet	6	6												N Podoroska	6	6
	WC	MP Pérez	0	4											8	F Contreras Gómez	3	3
		X You	6	6					X You	2	0
	Q	M Partaud	1	6	1			8	F Contreras Gómez	6	6
	8	F Contreras Gómez	6	1	6																		N Podoroska	6	6
	4	ML Carlé	4	2																		WC	E Arango	4	1
	Q	M Colmegna	6	6				Q	M Colmegna	7	6
	WC	Y Lizarazo	4					WC	Y Lizarazo	5	4
		W Osuigwe	2r												Q	M Colmegna	1	5
		R Zarazúa	64	6	6										WC	E Arango	6	7
		J Aney	77	0	1				R Zarazúa	3	3
	WC	E Arango	6	6				WC	E Arango	6	6
	7	C Zhao	4	3

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	H Baptiste	7	64	4
		E Kalieva	5	77	6				E Kalieva	6	4	6
		N Brancaccio	7	6					N Brancaccio	3	6	2
		J Riera	5	3												E Kalieva	5	6	3
		W Falkowska	7	0	1											P Ormaechea	7	3	6
		P Ormaechea	5	6	6				P Ormaechea	77	6
		K Kawa	61	5				3	A Bolsova	64	3
	3	A Bolsova	77	7																			P Ormaechea	7	6
	5	C Dolehide	65	6	64																	2	L Pigossi	5	3
	Q	C Alves	77	3	77			Q	C Alves	1	7	1
	WC	M Herazo González	2	2					V Strakhova	6	5	6
		V Strakhova	6	6												V Strakhova	3	6	3
		R Șerban	5	6	77										2	L Pigossi	6	3	6
	Q	Q Gleason	7	1	64				R Șerban	2	3
		G Cé	1	1				2	L Pigossi	6	6
	2	L Pigossi	6	6

Qualifying

Draw

First qualifier

	First round							Qualifying competition
	1	Carolina Alves	6	6
		Alexandra Riley	0	0
								1	Carolina Alves	6	6
									Emily Seibold	4	3
		Emily Seibold	6	6
	7	Olivia Tjandramulia	2	1

Second qualifier

	First round							Qualifying competition
	2	Kyōka Okamura	2	3
		Cadence Brace	6	6
									Cadence Brace	1	4
								5	Martina Colmegna	6	6
		Sabastiani León	0	0
	5	Martina Colmegna	6	6

Third qualifier

	First round							Qualifying competition
	3	Luisa Meyer auf der Heide	1	1
	PR	Quinn Gleason	6	6
								PR	Quinn Gleason	4	6	6
								8	Amina Anshba	6	4	2
	WC	María Paula Vargas Triana	0	0
	8	Amina Anshba	6	6

Fourth qualifier

	First round							Qualifying competition
	Alt	María Torres Murcia	3	2
		Yuliana Monroy	6	6
									Yuliana Monroy	6	3	1
								6	Marine Partaud	4	6	6
	WC	María Paz Ospina	0	1
	6	Marine Partaud	6	6

References

• Main Draw
• Qualifying Draw