| 2018 Columbus Challenger | ||||
|---|---|---|---|---|
| Date | 17–23 September | |||
| Edition | 5th | |||
| Draw | 32S / 16D | |||
| Surface | Hard / Indoors | |||
| Location | Columbus, United States | |||
| Champions | ||||
| Singles | ||||
 Michael Mmoh | ||||
| Doubles | ||||
Tommy Paul /  Peter Polansky | ||||
| ||||
The 2018 Columbus Challenger was a professional tennis tournament played on indoor hard courts. It was the fifth edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Columbus, United States between 17 and 23 September 2018.
Singles main draw entrants
Seeds
| Country | Player | Rank | Seed |
|---|---|---|---|
 AUS
|
Jordan Thompson | 111 | 1 |
| CAN
|
Peter Polansky | 112 | 2 |
| USA
|
Michael Mmoh | 122 | 3 |
| USA
|
Reilly Opelka | 143 | 4 |
 GER
|
Dominik Köpfer | 188 | 5 |
| AUS
|
Alexei Popyrin | 194 | 6 |
 ECU
|
Roberto Quiroz | 213 | 7 |
| AUS
|
Maverick Banes | 220 | 8 |
- Rankings are as of September 10, 2018.
Other entrants
The following players received entry into the singles main draw as wildcards:
- Martin Joyce
- John McNally
Mikael Torpegaard- J. J. Wolf
The following player received entry into the singles main draw as a special exempt:
The following players received entry from the qualifying draw:
- Thai-Son Kwiatkowski
- Luke Saville
- Ryan Shane
- Evan Song
The following player received entry as a lucky loser:
Champions
Singles
Main article: 2018 Columbus Challenger – Singles- Michael Mmoh def. Jordan Thompson 6–3, 7–6.
Doubles
Main article: 2018 Columbus Challenger – Doubles- Tommy Paul / Peter Polansky def. Gonzalo Escobar / Roberto Quiroz 6–3, 6–3.