2019 AON Open Challenger

The 2019 AON Open Challenger was a professional tennis tournament played on clay courts. It was the seventeenth edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Genoa, Italy between 2 and 8 September 2019.

Seeds

 * 1 Rankings are as of 26 August 2019.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇩🇪 Philipp Kohlschreiber
 * 🇮🇹 Lorenzo Musetti
 * 🇮🇹 Andrea Pellegrino
 * 🇮🇹 Lorenzo Sonego
 * 🇮🇹 Giulio Zeppieri

The following players received entry into the singles main draw as alternates:
 * 🇧🇷 Thomaz Bellucci
 * 🇩🇪 Julian Lenz

The following players received entry from the qualifying draw:
 * 🇸🇰 Alex Molčan
 * 🇮🇹 Andrea Vavassori

Singles

 * 🇮🇹 Lorenzo Sonego def. 🇪🇸 Alejandro Davidovich Fokina 6–2, 4–6, 7–6(8–6).

Doubles

 * Ariel Behar / 🇪🇨 Gonzalo Escobar def. 🇦🇷 Guido Andreozzi / 🇦🇷 Andrés Molteni 3–6, 6–4, [10–3].