2020 Sofia Open

The 2020 Sofia Open was a men's tennis tournament played on indoor hard courts. It was the fifth edition of the Sofia Open as part of the ATP Tour 250 series of the 2020 ATP Tour. Originally scheduled for 28 September to 4 October at the Arena Armeec in Sofia, Bulgaria, but due to the COVID-19 pandemic it was rescheduled to 8 November until 14 November 2020. Unseeded Jannik Sinner won the singles title.

Singles

 * 🇮🇹 Jannik Sinner defeated 🇨🇦 Vasek Pospisil, 6–4, 3–6, 7–6(7–3)

Doubles

 * 🇬🇧 Jamie Murray / 🇬🇧 Neal Skupski defeated 🇦🇹 Jürgen Melzer / 🇫🇷 Édouard Roger-Vasselin, walkover

Seeds

 * 1 Rankings as of 2 November 2020

Other entrants
The following players received wildcards into the singles main draw:
 * 🇧🇬 Adrian Andreev
 * 🇧🇬 Dimitar Kuzmanov
 * 🇨🇿 Jonáš Forejtek

The following players received entry from the qualifying draw:
 * 🇯🇵 Taro Daniel
 * 🇷🇺 Aslan Karatsev
 * 🇫🇷 Gilles Simon
 * 🇷🇸 Viktor Troicki

The following players received entry as lucky losers:
 * Marc-Andrea Hüsler
 * 🇸🇰 Martin Kližan
 * 🇺🇦 Illya Marchenko

Withdrawals

 * Kevin Anderson → replaced by 🇮🇹 Jannik Sinner
 * 🇪🇸 Roberto Bautista Agut → replaced by 🇫🇷 Adrian Mannarino
 * 🇪🇸 Pablo Carreño Busta → replaced by 🇸🇰 Andrej Martin
 * Borna Ćorić → replaced by Marc-Andrea Hüsler
 * 🇮🇹 Fabio Fognini → replaced by Marin Čilić
 * 🇺🇸 Taylor Fritz → replaced by 🇮🇹 Salvatore Caruso
 * 🇷🇺 Karen Khachanov → replaced by 🇺🇦 Illya Marchenko
 * 🇷🇸 Filip Krajinović → replaced by 🇪🇸 Roberto Carballes Baena
 * 🇷🇸 Dušan Lajović → replaced by 🇧🇾 Egor Gerasimov
 * 🇫🇷 Gaël Monfils → replaced by 🇸🇰 Martin Kližan
 * 🇯🇵 Kei Nishikori → replaced by 🇭🇺 Márton Fucsovics
 * 🇨🇦 Milos Raonic → replaced by 🇲🇩 Radu Albot
 * 🇳🇴 Casper Ruud → replaced by 🇦🇺 John Millman
 * 🇦🇷 Diego Schwartzman → replaced by 🇯🇵 Yūichi Sugita

Seeds

 * 1 Rankings are as of 2 November 2020.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇧🇬 Alexander Donski / 🇧🇬 Vasko Mladenov
 * 🇧🇬 Dimitar Kuzmanov / 🇷🇸 Viktor Troicki