2018 Thindown Challenger Biella – Singles

Filip Krajinović was the defending champion but chose not to defend his title.

Federico Delbonis won the title after defeating Stefano Napolitano 6–4, 6–3 in the final.

Seeds
• # 🇪🇸 Roberto Carballés Baena (quarterfinals)

• # 🇦🇷 Federico Delbonis (champion)

• # 🇮🇹 Paolo Lorenzi (quarterfinals)

• # 🇧🇷 Thiago Monteiro (semifinals)

• # 🇦🇷 Marco Trungelliti (quarterfinals)

• # 🇮🇹 Stefano Travaglia (semifinals)

• # Gastão Elias (first round)

• # 🇪🇸 Daniel Gimeno Traver (first round)