2018 JSM Challenger of Champaign–Urbana

The 2018 JSM Challenger of Champaign–Urbana was a professional tennis tournament played on hard courts. It was the twenty-third edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Champaign, Illinois, United States between November 12 and November 17, 2018.

Seeds

 * 1 Rankings are as of November 5, 2018.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇺🇸 Alexander Brown
 * 🇺🇸 Ezekiel Clark
 * 🇺🇸 Sebastian Korda
 * 🇺🇸 Patrick Kypson

The following player received entry into the singles main draw as an alternate:
 * 🇺🇸 Alexander Ritschard

The following players received entry from the qualifying draw:
 * 🇺🇸 Keenan Mayo
 * Ruan Roelofse
 * 🇺🇸 Ryan Shane
 * Mikael Torpegaard

The following player received entry as a lucky loser:
 * 🇺🇸 Alafia Ayeni

Singles

 * 🇺🇸 Reilly Opelka def. 🇺🇸 Ryan Shane 7–6(8–6), 6–3.

Doubles

 * 🇦🇺 Matt Reid / 🇦🇺 John-Patrick Smith def. 🇲🇽 Hans Hach Verdugo / 🇻🇪 Luis David Martínez 6–4, 4–6, [10–8].