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The Santiago Challenger, also known as Movistar Open by Cachantún for sponsorship reasons, is a professional tennis tournament played on clay courts. It is currently part of the Association of Tennis Professionals (ATP) Challenger Tour. It is held annually in Vitacura, Santiago Metropolitan Region, Chile since 2015.

Year	Champions	Runners-up	Score
2018	Not Held
2017	Nicolás Jarry	Marcelo Arévalo	6–1, 7–5
2016	Máximo González	Rogério Dutra Silva	6–2, 7–6(7–5)
2015	Rogério Dutra Silva	Horacio Zeballos	7–5, 3–6, 7–5

Year	Champions	Runners-up	Score
2018	Not Held
2017	Franco Agamenone Facundo Argüello	Máximo González Nicolás Jarry	6–4, 3–6, [10–6]
2016	Julio Peralta Horacio Zeballos	Sergio Galdós Máximo González	6–3, 6–4
2015	Guillermo Durán Máximo González	Andrej Martin Hans Podlipnik	7–6(8–6), 7–5