2018 Heilbronner Neckarcup

The 2018 Heilbronner Neckarcup was a professional tennis tournament played on clay courts. It was the fifth edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Heilbronn, Germany between 14 and 20 May 2018.

Seeds

 * 1 Rankings are as of May 7, 2018.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇩🇪 Dominik Köpfer
 * 🇩🇪 Rudolf Molleker
 * 🇩🇪 Marvin Möller
 * 🇩🇪 Tim Pütz

The following players received entry from the qualifying draw:
 * 🇩🇪 Benjamin Hassan
 * 🇩🇪 Daniel Masur
 * Igor Sijsling
 * 🇪🇸 Bernabé Zapata Miralles

Singles

 * 🇩🇪 Rudolf Molleker def. 🇨🇿 Jiří Veselý 4–6, 6–4, 7–5.

Doubles

 * 🇦🇺 Rameez Junaid / David Pel def. 🇩🇪 Kevin Krawietz / 🇩🇪 Andreas Mies 6–2, 2–6, [10–7].