2018 Columbus Challenger

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.

Seeds

 * 1 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:
 * 🇦🇺 James Duckworth

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:
 * 🇪🇸 David Pérez Sanz

Singles

 * 🇺🇸 Michael Mmoh def. 🇦🇺 Jordan Thompson 6–3, 7–6(7–4).

Doubles

 * 🇺🇸 Tommy Paul / 🇨🇦 Peter Polansky def. 🇪🇨 Gonzalo Escobar / 🇪🇨 Roberto Quiroz 6–3, 6–3.