2019 Sarasota Open – Singles

Tommy Paul won the title after defeating Tennys Sandgren 6–3, 6–4 in the final.

Hugo Dellien was the defending champion but lost in the third round to Aslan Karatsev.

Seeds
All seeds receive a bye into the second round. • # 🇧🇴 Hugo Dellien (third round)

• # 🇺🇸 Tennys Sandgren (final)

• # 🇺🇸 Bradley Klahn (second round)

• # 🇳🇴 Casper Ruud (withdrew)

• # 🇮🇹 Paolo Lorenzi (quarterfinals)

• # Henri Laaksonen (third round)

• # 🇺🇸 Bjorn Fratangelo (third round)

• # 🇨🇦 Peter Polansky (quarterfinals)

• # 🇺🇸 Noah Rubin (third round, retired)

• # 🇦🇺 Marc Polmans (second round)

• # 🇺🇸 Marcos Giron (semifinals)

• # 🇺🇸 Mitchell Krueger (second round)

• # 🇩🇪 Dominik Köpfer (second round)

• # 🇬🇧 James Ward (second round)

• # 🇺🇸 Tommy Paul (champion)

• # 🇩🇪 Mats Moraing (second round)