2021 Las Vegas Challenger – Doubles

Ruben Gonzales and Ruan Roelofse were the defending champions^[1] but chose to defend their title with different partners. Gonzales partnered Hunter Johnson but lost in the first round to Hans Hach Verdugo and Miguel Ángel Reyes-Varela. Roelofse partnered Christopher Rungkat but lost in the quarterfinals to William Blumberg and Max Schnur.

Doubles
2021 Las Vegas Challenger
Champions	William Blumberg Max Schnur
Runners-up	Jason Jung Evan King
Score	7–5, 6–7(5–7), [10–5]

Main article: 2021 Las Vegas Challenger

Blumberg and Schnur won the title after defeating Jason Jung and Evan King 7–5, 6–7^(5–7), [10–5] in the final.

Seeds

1. Nathaniel Lammons / Jackson Withrow (semifinals)
2. Hans Hach Verdugo / Miguel Ángel Reyes-Varela (semifinals)
3. Robert Galloway / Alex Lawson (quarterfinals)
4. William Blumberg / Max Schnur (champions)

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

	First round							Quarterfinals							Semifinals							Final
	1	N Lammons J Withrow	77	7
		T Sandgren M Torpegaard	64	5				1	N Lammons J Withrow	79	6
	WC	Jack Vance Jamie Vance	4	4					M Mmoh D Novikov	67	3
		M Mmoh D Novikov	6	6											1	N Lammons J Withrow	2	4
	4	W Blumberg M Schnur	6	6											4	W Blumberg M Schnur	6	6
	WC	Zac Brodney Milos Dabic	4	2				4	W Blumberg M Schnur	6	6
		R Roelofse C Rungkat	77	6					R Roelofse C Rungkat	3	4
	WC	Jack Atherton Anton Örnberg	63	1																		4	W Blumberg M Schnur	7	65	[10]
		J Jung E King	77	6																			J Jung E King	5	77	[5]
		D Kudla R Lindstedt	64	1					J Jung E King	3	77	[10]
		S Kozlov P Polansky	4	65				3	R Galloway A Lawson	6	64	[8]
	3	R Galloway A Lawson	6	77												J Jung E King	6	3	[10]
		C Harrison M Krueger	7	6											2	H Hach Verdugo MÁ Reyes-Varela	4	6	[6]
		JC Aragone T Huey	5	4					C Harrison M Krueger	5	3
		R Gonzales H Johnson	1	2				2	H Hach Verdugo MÁ Reyes-Varela	7	6
	2	H Hach Verdugo MÁ Reyes-Varela	6	6