Singles
2015 Stockton Challenger
Champion	Nao Hibino
Runner-up	An-Sophie Mestach
Score	6–1, 7–6(8–6)

This was a new event to the ITF Women's Circuit in 2015.

Nao Hibino won the title, defeating An-Sophie Mestach in the final, 6–1, 7–6^(8–6).

Seeds

Main draw

Finals

	Semifinals							Final
	1	An-Sophie Mestach	6	5	6
		Kimiko Date-Krumm	2	7	2
								1	An-Sophie Mestach	1	66
								5	Nao Hibino	6	78
	5	Nao Hibino	77	77
		Sanaz Marand	65	64

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	A-S Mestach	6	710
	WC	A Stevenson	3	68				1	A-S Mestach	77	6
		A Kalinina	6	6					A Kalinina	63	2
		C de Bernardi	4	4											1	A-S Mestach	7	7
	Q	S Sanders	6	1	6										7	M Hibi	5	5
		A Kiick	1	6	0			Q	S Sanders	5	3
		S Crawford	65	0				7	M Hibi	7	6
	7	M Hibi	77	6																		1	A-S Mestach	6	5	6
	4	C Bellis	4	1																			K Date-Krumm	2	7	2
		J Jakšić	6	6					J Jakšić	1	4
		J Pegula	1	1				WC	D Lao	6	6
	WC	D Lao	6	6											WC	D Lao	3	2
		L Embree	6	1	2											K Date-Krumm	6	6
	Q	K Ahn	1	6	6			Q	K Ahn	3	2
		K Date-Krumm	6	6					K Date-Krumm	6	6
	6	J Boserup	4	4

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	N Hibino	7	7
	Q	C Simmonds	5	5				5	N Hibino	6	6
		C Whoriskey	65	64				WC	J Loeb	3	3
	WC	J Loeb	77	77											5	N Hibino	6	6
		A Hesse	3	6	6											A Hesse	1	2
		E Webley-Smith	6	3	1				A Hesse	6	6
		J Moore	3	7	7				J Moore	4	4
	3	M Sanchez	6	5	5																	5	N Hibino	77	77
	8	N Broady	6	6																			S Marand	65	64
	Q	H El Tabakh	3	2				8	N Broady	2	6	1
		M Oudin	77	6					M Oudin	6	2	6
		M Arcangioli	65	4												M Oudin	2	2
	WC	B Austin	5	5												S Marand	6	6
		S Marand	7	7					S Marand	6	6
		J Brady	6	6					J Brady	2	4
	2	E Hozumi	3	3

References

• Main draw