2018 Las Vegas Challenger

The 2018 Las Vegas Challenger was a professional tennis tournament played on hard courts. It was the fourth edition of the revamped tournament which was the part of the 2018 ATP Challenger Tour. It took place in Las Vegas, United States between 22 and 28 October 2018.

Seeds

 * 1 Rankings are as of October 15, 2018.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇲🇩 Alexander Cozbinov
 * 🇺🇸 Evan Song
 * Mikael Torpegaard
 * 🇺🇸 J. J. Wolf

The following player received entry into the singles main draw as a special exempt:
 * Borna Gojo

The following player received entry into the singles main draw as an alternate:
 * 🇩🇪 Jan Choinski

The following players received entry from the qualifying draw:
 * 🇫🇷 Mathias Bourgue
 * 🇺🇸 Thai-Son Kwiatkowski
 * 🇪🇸 Roberto Ortega Olmedo
 * 🇺🇸 Tommy Paul

The following players received entry as lucky losers:
 * 🇺🇸 Evan King
 * 🇺🇸 Alexander Sarkissian
 * Jelle Sels

Singles

 * 🇦🇺 Thanasi Kokkinakis def. Blaž Rola 6–4, 6–4.

Doubles

 * Marcelo Arévalo / 🇻🇪 Roberto Maytín def. 🇺🇸 Robert Galloway / 🇺🇸 Nathan Pasha 6–3, 6–3.