| Type: | ATP Challenger |
| Challenger de Buenos Aires | |
| Current: | 2023 Challenger de Buenos Aires |
| City: | Buenos Aires, Argentina |
| Venue: | Racket Club |
| Category: | ATP Challenger Tour |
| Surface: | Clay / Outdoors |
| Draw: | 32S/32Q/16D |
| Prize Money: | $50,000+H |
The Copa San Cristóbal (formerly known as Copa Fila and Copa Topper for sponsorship reasons) is a tennis tournament held in Buenos Aires, Argentina, since 2010. The event is part of the ATP Challenger Tour and is played on outdoor red clay courts.
| Year | Champion | Runner-up | Score | |
|---|---|---|---|---|
 Mariano Navone | 2–6, 6–3, 6–4 | |||
| Juan Manuel Cerúndolo | 6–4, 2–6, 7–5 | |||
| Sebastián Báez | 6–4, 6–0 | |||
| 2020 | Not held | |||
 Sumit Nagal | 6–4, 6–2 | |||
 Pablo Andújar | 6–3, 6–1 | |||
| Nicolás Kicker | 6–7(5–7), 6–0, 7–5 | |||
| Renzo Olivo | 2–6, 7–6(7–3), 7–6(7–3) | |||
 Kyle Edmund | 6–0, 6–4 | |||
| 2014 | Not held | |||
| Pablo Cuevas | 7-6(8-6), 2–6, 6–4 | |||
| Diego Schwartzman | 6–1, 7–5 | |||
| Carlos Berlocq | 6–1, 7–6(7–3) | |||
| Diego Junqueira | 6–2, 6–1 |
| Year | Champion | Runner-up | Score | |
|---|---|---|---|---|
 Diego Hidalgo  Cristian Rodríguez | 6–3, 6–2 | |||
| Guido Andreozzi Guillermo Durán | 6–0, 7–5 | |||
 Luciano Darderi Juan Bautista Torres | 7–6(7–5), 7–6(12–10) | |||
| 2020 | Not held | |||
| Guido Andreozzi (2) Andrés Molteni |  Hugo Dellien Federico Zeballos | 6–7(3–7), 6–2, [10–1] | ||
| Guido Andreozzi Guillermo Durán |  Marcelo Demoliner Andrés Molteni | 6–4, 4–6, [10–3] | ||
| Ariel Behar Fabiano de Paula | Máximo González Fabrício Neis | 7–6(7–3), 5–7, [10–8] | ||
| Julio Peralta (2) Horacio Zeballos (3) |  Sergio Galdós Fernando Romboli | 7–6(7–5), 7–6(7–1) | ||
| Julio Peralta Horacio Zeballos (2) | 6–2, 7–5 | |||
| 2014 | Not held | |||
| Máximo González Diego Sebastián Schwartzman | 6–3, 7–5 | |||
| Martín Alund Horacio Zeballos | 7–6(8–6), 6–2 | |||
| Carlos Berlocq (2) Eduardo Schwank | 6–7(1–7), 6–4, [10–7] | |||
| Carlos Berlocq Brian Dabul | 7–6(7–4), 6–3 |