2020 Ann Arbor Challenger

The 2020 Ann Arbor Challenger was a professional tennis tournament played on indoor hard courts. It was the tournament's first edition, a part of the 2020 ATP Challenger Tour. It took place in Ann Arbor, Michigan, United States between January 6 and 12, 2020.

Seeds

 * 1 Rankings are as of December 30, 2019.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇺🇸 Andrew Fenty
 * 🇺🇸 Aleksandar Kovacevic
 * 🇺🇸 John McNally
 * 🇨🇿 Ondřej Štyler
 * 🇺🇸 Zachary Svajda

The following players received entry into the singles main draw using protected rankings:
 * 🇨🇴 Nicolás Barrientos
 * 🇺🇸 Patrick Kypson

The following players received entry from the qualifying draw:
 * 🇨🇴 Alejandro Gómez
 * 🇺🇸 Strong Kirchheimer

Singles

 * 🇺🇸 Ulises Blanch def. 🇩🇴 Roberto Cid Subervi 3–6, 6–4, 6–2.

Doubles

 * 🇺🇸 Robert Galloway / 🇲🇽 Hans Hach Verdugo def. 🇨🇴 Nicolás Barrientos / 🇨🇴 Alejandro Gómez 4–6, 6–4, [10–8].