2021 Columbus Challenger

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

• Nuria Párrizas Díaz def. Wang Xinyu, 7–6^(7–2), 6–3

• Stefan Kozlov / Peter Polansky def. Andrew Lutschaunig / James Trotter 7–5, 7–6^(7–5).

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

Country	Player	Rank1	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.[3]

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

Country	Player	Rank1	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.

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

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

Country	Player	Country	Player	Rank1	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

The following pairs received wildcards into the doubles main draw:

• Luna Dormet / Lucía Marzal Martínez
• Elsa Jacquemot / Eleana Yu