2021 Las Vegas Challenger – Doubles
# 2021 Las Vegas Challenger – Doubles

Ruben Gonzales and Ruan Roelofse were the defending champions 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.

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

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

## Draw

### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

| First round | First round | First round | First round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | N Lammons J Withrow | $7^7$ | 7 | | | | | | | | | | | | | | | |
| | T Sandgren M Torpegaard | $6^4$ | 5 | 1 | N Lammons J Withrow | $7^9$ | 6 | | | | | | | | | | | |
| WC | Jac Vance Jam Vance | 4 | 4 | | M Mmoh D Novikov | $6^7$ | 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 | $7^7$ | 6 | | R Roelofse C Rungkat | 3 | 4 | | | | | | | | | | | |
| WC | Jack Atherton Anton Örnberg | $6^3$ | 1 | | | | | | | | | | | 4 | W Blumberg M Schnur | 7 | $6^5$ | [10] |
| | J Jung E King | $7^7$ | 6 | | | | | | | | | | | | J Jung E King | 5 | $7^7$ | [5] |
| | D Kudla R Lindstedt | $6^4$ | 1 | | J Jung E King | 3 | $7^7$ | [10] | | | | | | | | | | |
| | S Kozlov P Polansky | 4 | $6^5$ | 3 | R Galloway A Lawson | 6 | $6^4$ | [8] | | | | | | | | | | |
| 3 | R Galloway A Lawson | 6 | $7^7$ | | | | | | | 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 | | | | | | | | | | | | | | | |
