2015 Nielsen Pro Tennis Championship – Singles

Denis Kudla was the defending champion, but he did not participate this year. Somdev Devvarman won the title by defeating Daniel Nguyen in the final by a score of 7–5, 4–6, 7–6(7–5). The final match lasted for 3 hours and 31 minutes.

Seeds
• # 🇯🇵 Tatsuma Ito (first round)

• # 🇺🇦 Illya Marchenko (second round)

• # Blaž Kavčič (second round)

• # 🇺🇸 Austin Krajicek (second round)

• # 🇺🇸 Ryan Harrison (semifinals)

• # 🇯🇵 Yūichi Sugita (withdrew)

• # 🇮🇳 Somdev Devvarman (champion)

• # 🇺🇸 Connor Smith (first round)