2018 Challenger ATP Cachantún Cup
The 2018 Challenger ATP Cachantún Cup was a professional tennis tournament played on red clay courts. It was the 11th edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Santiago, Chile between 5 and 10 March 2018.Seeds
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:
Singles
- Marco Cecchinato def. Carlos Gómez-Herrera 1–6, 6–1, 6–1.
Doubles
- Romain Arneodo / Jonathan Eysseric def. Guido Andreozzi / Guillermo Durán 7–6, 1–6, .
