2018 Swiss Indoors

The 2018 Swiss Indoors was a men's tennis tournament played on indoor hard courts. It was the 49th edition of the tournament, and part of the 500 series of the 2018 ATP World Tour. It was held at the St. Jakobshalle in Basel, Switzerland, from 22 October through 28 October 2018. First-seeded Roger Federer won his ninth singles title at the event.

Singles

 * Roger Federer defeated 🇷🇴 Marius Copil, 7–6(7–5), 6–4

Doubles

 * 🇬🇧 Dominic Inglot / Franko Škugor defeated 🇩🇪 Alexander Zverev / 🇩🇪 Mischa Zverev, 6–2, 7–5

Seeds

 * Rankings are as of October 15, 2018

Other entrants
The following players received wildcards into the singles main draw:
 * 🇺🇸 Taylor Fritz
 * Henri Laaksonen
 * 🇺🇸 Jack Sock

The following player received entry as a special exempt:
 * Ernests Gulbis

The following players received entry from the qualifying draw:
 * 🇷🇴 Marius Copil
 * 🇯🇵 Taro Daniel
 * 🇷🇸 Laslo Đere
 * 🇦🇺 Alexei Popyrin

The following player received entry as a lucky loser:
 * 🇷🇸 Dušan Lajović

Withdrawals

 * Before the tournament
 * 🇦🇷 Juan Martín del Potro → replaced by 🇩🇪 Maximilian Marterer
 * 🇧🇪 David Goffin → replaced by 🇺🇸 Ryan Harrison
 * Stan Wawrinka → replaced by 🇷🇸 Dušan Lajović

Seeds

 * Rankings are as of October 15, 2018

Other entrants
The following pairs received wildcards into the doubles main draw:
 * Marc-Andrea Hüsler / Sem Verbeek
 * Henri Laaksonen / Luca Margaroli

The following pair received entry from the qualifying draw:
 * 🇪🇸 Guillermo García López / 🇪🇸 David Marrero

The following pair received entry as lucky losers:
 * 🇸🇪 Robert Lindstedt / 🇫🇷 Fabrice Martin

Withdrawals

 * Before the tournament
 * Ivan Dodig