2018 AON Open Challenger

The 2018 AON Open Challenger was a professional tennis tournament played on clay courts. It was the sixteenth edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Genoa, Italy between 4 and 9 September 2018.

Seeds

 * 1 Rankings are as of 27 August 2018.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇮🇹 Filippo Baldi
 * 🇮🇹 Andrea Basso
 * 🇩🇪 Dustin Brown
 * 🇮🇹 Giovanni Fonio

The following player received entry into the singles main draw as an alternate:
 * 🇨🇿 Lukáš Rosol

The following players received entry from the qualifying draw:
 * 🇷🇺 Alen Avidzba
 * 🇮🇳 Sumit Nagal
 * 🇮🇹 Andrea Pellegrino
 * 🇭🇺 Zsombor Piros

The following players received entry as lucky losers:
 * 🇧🇷 Thomaz Bellucci
 * 🇵🇪 Juan Pablo Varillas

Singles

 * 🇮🇹 Lorenzo Sonego def. 🇩🇪 Dustin Brown 6–2, 6–1.

Doubles

 * 🇩🇪 Kevin Krawietz / 🇩🇪 Andreas Mies def. 🇸🇰 Martin Kližan / 🇸🇰 Filip Polášek 6–2, 3–6, [10–2].