2019 RBC Tennis Championships of Dallas – Singles

Kei Nishikori was the defending champion but chose not to defend his title.

Mitchell Krueger won the title after defeating Mackenzie McDonald 4–6, 7–6(7–3), 6–1 in the final.

Seeds
All seeds receive a bye into the second round. • # 🇺🇸 Mackenzie McDonald (final)

• # 🇺🇸 Ryan Harrison (second round, withdrew)

• # 🇺🇸 Reilly Opelka (semifinals)

• # Jason Jung (quarterfinals)

• # 🇷🇸 Miomir Kecmanović (second round, retired)

• # 🇺🇸 Bjorn Fratangelo (semifinals, withdrew)

• # 🇺🇸 Noah Rubin (withdrew)

• # 🇺🇸 Christopher Eubanks (second round)

• # 🇩🇪 Dominik Köpfer (quarterfinals)

• # 🇨🇦 Brayden Schnur (quarterfinals)

• # 🇪🇨 Roberto Quiroz (second round)

• # 🇺🇸 Tim Smyczek (second round)

• # 🇺🇸 Ernesto Escobedo (second round)

• # 🇺🇸 Mitchell Krueger (champion)

• # 🇧🇷 Thomaz Bellucci (third round)

• # 🇩🇪 Dustin Brown (third round)