The 2018 South American Rhythmic Gymnastics Championships were held in Melgar, Colombia, October 22–29, 2018.^[1] The competition was organized by the Colombian Gymnastics Federation.^[2][3]

•  Argentina
•  Bolivia
•  Brazil
•  Chile
•  Colombia
•  Ecuador
•  Peru
•  Uruguay
•  Venezuela

Event	Gold	Silver	Bronze
Team all-around	Brazil Heloisa Bornal Barbara Domingos Natália Gaudio	Colombia Lina Dussan Vanessa Galindo Oriana Viñas	Chile Fernanda Labra Javiera Rubilar Montserrat Urrutia
Individual all-around	Barbara Domingos (BRA)	Natália Gaudio (BRA)	Lina Dussan (COL)
Hoop	Barbara Domingos (BRA)	Heloisa Bornal (BRA)	Vanessa Galindo (COL)
Ball	Natália Gaudio (BRA)	Barbara Domingos (BRA)	Oriana Viñas (COL)
Clubs	Barbara Domingos (BRA)	Natália Gaudio (BRA)	Lina Dussan (COL)
Ribbon	Barbara Domingos (BRA)	Natália Gaudio (BRA)	Sofia Bergliaffa (ARG)
Group all-around	Brazil Drielly Daltoé Carolina Garcia Simone Luiz Fernanda de Paula Jéssica Silveira	Chile Catalina Araya Isidora Vergara Javiera Aravena Maria Ignacia León Valentina Cuello Catalina Zapata	Peru Aitana Orrego Georgina Vidalon Camila Rodriguez Sharon Davila Carmen Leon
Group 5 hoops	Chile Catalina Araya Isidora Vergara Javiera Aravena Maria Ignacia León Valentina Cuello Catalina Zapata	Brazil Drielly Daltoé Carolina Garcia Simone Luiz Fernanda de Paula Jessica Silveira	Peru Aitana Orrego Georgina Vidalon Camila Rodriguez Sharon Davila Carmen Leon
Group 3 balls and 2 ropes	Brazil Drielly Daltoé Carolina Garcia Simone Luiz Fernanda de Paula Jessica Silveira	Chile Catalina Araya Isidora Vergara Javiera Aravena Maria Ignacia León Valentina Cuello Catalina Zapata	Peru Aitana Orrego Georgina Vidalon Camila Rodriguez Sharon Davila Carmen Leon

Rank	Nation	Gold	Silver	Bronze	Total
1	Brazil (BRA)	8	6	0	14
2	Chile (CHI)	1	2	1	4
3	Colombia (COL)	0	1	4	5
4	Peru (PER)	0	0	3	3
5	Argentina (ARG)	0	0	1	1
Totals (5 entries)		9	9	9	27