2019 Nielsen Pro Tennis Championship – Singles

Evgeny Karlovskiy was the defending champion but lost in the first round to Stefan Kozlov.

Bradley Klahn won the title after defeating Jason Kubler 6–2, 7–5 in the final.

Seeds
All seeds receive a bye into the second round. • # 🇺🇸 Bradley Klahn (champion)

• # 🇦🇺 Matthew Ebden (second round, retired)

• # 🇦🇷 Guido Andreozzi (third round, retired)

• # 🇺🇿 Denis Istomin (semifinals)

• # Jason Jung (quarterfinals)

• # 🇺🇸 Bjorn Fratangelo (quarterfinals)

• # 🇪🇸 Adrián Menéndez Maceiras (second round, retired)

• # 🇮🇳 Ramkumar Ramanathan (quarterfinals)

• # 🇺🇸 Michael Mmoh (second round)

• # 🇫🇷 Quentin Halys (second round)

• # 🇺🇸 Mitchell Krueger (second round)

• # 🇦🇺 Jason Kubler (final)

• # 🇦🇺 Thanasi Kokkinakis (semifinals, withdrew)

• # 🇺🇸 Christopher Eubanks (quarterfinals)

• # 🇺🇸 Donald Young (third round)

• # 🇺🇸 Thai-Son Kwiatkowski (second round)