2017 JSM Challenger of Champaign–Urbana – Singles

Henri Laaksonen was the defending champion but lost in the second round to Filip Peliwo.

Tim Smyczek won the title after defeating Bjorn Fratangelo 6–2, 6–4 in the final.

Seeds
• # 🇺🇸 Tennys Sandgren (quarterfinals)

• # Henri Laaksonen (second round)

• # 🇺🇸 Taylor Fritz (semifinals)

• # 🇬🇧 Cameron Norrie (semifinals)

• # 🇺🇸 Bjorn Fratangelo (final)

• # 🇺🇸 Michael Mmoh (first round)

• # 🇺🇸 Tim Smyczek (champion)

• # 🇺🇸 Tommy Paul (quarterfinals, retired)