# 2021 Columbus Challenger

The 2021 Columbus Challenger was a professional challenger level tennis tournament played on indoor hard courts. It was the tenth edition of the men's tournament which was part of the 2021 ATP Challenger Tour and the first edition of the women's event, that was part of 2021 WTA 125K series. It took place in Columbus, United States between 20 and 26 September 2021.

## Champions
### Men's singles

* Stefan Kozlov def. Max Purcell 4–6, 6–2, 6–4.

### Women's singles

* Nuria Párrizas Díaz def. Wang Xinyu, 7–6$^{(7–2)}$, 6–3

### Men's doubles

* Stefan Kozlov / Peter Polansky def. Andrew Lutschaunig / James Trotter 7–5, 7–6$^{(7–5)}$.

### Women's doubles

* Wang Xinyu / Zheng Saisai def. Dalila Jakupović / Nuria Párrizas Díaz, 6–1, 6–1

## ATP singles main draw entrants
### Seeds

| Country | Player | Rank$^1$ | Seed |
| USA | Tennys Sandgren | 103 | 1 |
| ITA | Salvatore Caruso | 125 | 2 |
| AUS | Alex Bolt | 146 | 3 |
| IND | Prajnesh Gunneswaran | 165 | 4 |
| TPE | Jason Jung | 166 | 5 |
| USA | Ernesto Escobedo | 175 | 6 |
| USA | J. J. Wolf | 178 | 7 |
| USA | Mitchell Krueger | 182 | 8 |
* $^1$ Rankings are as of September 13, 2021.

### Other entrants

The following players received entry into the singles main draw as wildcards:
* Cannon Kingsley
* James Tracy
* Matěj Vocel
The following players received entry into the singles main draw as alternates:
* Nick Chappell
* Dayne Kelly
The following players received entry into the singles main draw from the qualifying draw:
* Gijs Brouwer
* Chung Yun-seong
* Evan King
* Aleksandar Kovacevic
The following players received entry as lucky losers:
* Alexis Galarneau
* Shintaro Mochizuki

## WTA singles main draw entrants
### Seeds

| Country | Player | Rank$^1$ | Seed |
| USA | Ann Li | 73 | 1 |
| ESP | Nuria Párrizas Díaz | 88 | 2 |
| USA | Madison Brengle | 91 | 3 |
| CHN | Zheng Saisai | 94 | 4 |
| USA | Lauren Davis | 99 | 5 |
| MEX | Renata Zarazúa | 120 | 6 |
| BRA | Beatriz Haddad Maia | 124 | 7 |
| CHN | Wang Xinyu | 130 | 8 |
* $^1$ Rankings are as of September 13, 2021.

### Other entrants

The following players received entry into the singles main draw as wildcards:
* Elsa Jacquemot
* Elvina Kalieva
* Katrina Scott
* Peyton Stearns
The following player was accepted directly into the main draw using a protected or a special ranking:
* Liang En-shuo
The following players received entry into the singles main draw from the qualifying draw:
* Louisa Chirico
* Alexa Glatch
* Priscilla Hon
* Danielle Lao
The following player received entry into the singles main draw as a lucky loser:
* Dalila Jakupović

### Withdrawals
#### Before the tournament

* Marie Bouzková → replaced by Beatriz Haddad Maia
* Christina McHale → replaced by Kurumi Nara
* Caty McNally → replaced by Katie Volynets
* Grace Min → replaced by Francesca Di Lorenzo
* Anna Kalinskaya → replaced by Dalila Jakupović
* Kateryna Kozlova → replaced by Hailey Baptiste
* Claire Liu → replaced by Asia Muhammad
* Emma Raducanu → replaced by Rebecca Marino
* Donna Vekić → replaced by Jamie Loeb

## WTA doubles main draw entrants
### Seeds

| Country | Player | Country | Player | Rank$^1$ | Seed |
| USA | Ingrid Neel | USA | Sabrina Santamaria | 155 | 1 |
| NOR | Ulrikke Eikeri | FRA | Elixane Lechemia | 175 | 2 |
| USA | Jamie Loeb | USA | Asia Muhammad | 212 | 3 |
| TPE | Liang En-shuo | CAN | Rebecca Marino | 453 | 4 |
* Rankings are as of September 13, 2021

### Other entrants

The following pairs received wildcards into the doubles main draw:
* Luna Dormet / Lucía Marzal Martínez
* Elsa Jacquemot / Eleana Yu