Doubles
2021 Cary Challenger II
Final
Champions	William Blumberg Max Schnur
Runners-up	Stefan Kozlov Peter Polansky
Score	6–4, 1–6, [10–4]
Events
Singles Doubles
← 2021 · Cary Challenger · 2022 →

Christian Harrison and Dennis Novikov were the defending champions^[1] but lost in the semifinals to William Blumberg and Max Schnur.

Blumberg and Schnur won the title after defeating Stefan Kozlov and Peter Polansky 6–4, 1–6, [10–4] in the final.

	First round							Quarterfinals							Semifinals							Final
	1	L Glasspool N Monroe	2	5
		W Blumberg M Schnur	6	7					W Blumberg M Schnur	7	6
		Mi Redlicki D Young	3	64					T Fancutt J Kubler	5	1
		T Fancutt J Kubler	6	77												W Blumberg M Schnur	3	6	[10]
	4	C Harrison D Novikov	6	6											4	C Harrison D Novikov	6	1	[5]
	WC	Robin Catry Damien Salvestre	3	4				4	C Harrison D Novikov	4	6	[10]
	Alt	S Kirchheimer S Mochizuki	6	3	[10]			Alt	S Kirchheimer S Mochizuki	6	3	[4]
		G Brouwer R Stalder	4	6	[7]																		W Blumberg M Schnur	6	1	[10]
	WC	Garrett Johns Sean Sculley	4	4																			S Kozlov P Polansky	4	6	[4]
		JC Aragone N Barrientos	6	6					JC Aragone N Barrientos	4	4
		S Kozlov P Polansky	6	6					S Kozlov P Polansky	6	6
	3	R Galloway A Lawson	1	2												S Kozlov P Polansky	64	7	[10]
		J Jung M Krueger	78	3	[10]											J Jung M Krueger	77	5	[4]
	WC	Brian Cernoch M Kiger	66	6	[5]				J Jung M Krueger	6	62	[12]
	Alt	A Bolt R Hijikata	79	65	[12]			Alt	A Bolt R Hijikata	4	77	[10]
	2	E King J Withrow	67	77	[10]

• Main draw