Swimming at the 2010 South American Games – Women's 100 metre freestyle

The Women's 100m freestyle event at the 2010 South American Games was held on March 27, with the heats at 11:01 and the Final at 18:20.

Medalists[]

Gold	Silver	Bronze
Arlene Semeco Venezuela	Tatiana Barbosa Brazil	Argentina

Standing records prior to the 2010 South American Games
World record	Britta Steffen (GER)	52.07	Rome, Italy	31 July 2009
	Arlene Semeco (VEN)	57.18	Buenos Aires, Argentina	16 November 2006
South American record	Tatiana Barbosa (BRA)	54.72	Rio de Janeiro, Brazil	18 December 2009

Rank	Heat	Lane	Athlete	Result	Notes
1	2	4	Arlene Semeco (VEN)	58.11	Q
2	1	4	(ARG)	58.16	Q
3	2	5	(ARG)	58.56	Q
4	1	5	(VEN)	59.33	Q
5	1	3	Chinyere Pigot (SUR)	59.41	Q
6	1	6	(PER)	1:00.09	Q
7	3	4	Tatiana Barbosa (BRA)	1:00.18	Q
8	2	3	(COL)	1:00.34	Q
9	3	3	Daynara de Paula (BRA)	1:00.38
10	3	2	(URU)	1:00.65
11	2	7	(SUR)	1:00.80
12	3	5	(ECU)	1:00.94
13	3	7	(BOL)	1:01.67
14	3	6	(COL)	1:01.74
15	3	1	(AHO)	1:02.14
16	2	6	(ARU)	1:02.22
17	2	1	(BOL)	1:02.62
18	1	2	(PER)	1:02.82
19	1	7	(PAR)	1:03.06
20	2	2	(URU)	1:05.04
21	1	1	(PAR)	1:06.09
	2	8	(ECU)	DNS
	3	8	(AHO)	DNS

Rank	Lane	Athlete	Result	Notes
	4	Arlene Semeco (VEN)	56.21	CR
	1	Tatiana Barbosa (BRA)	56.90
	5	(ARG)	58.09
4	3	(ARG)	58.16
5	6	(VEN)	59.24
6	8	(COL)	59.58
7	7	(PER)	59.60
8	2	Chinyere Pigot (SUR)	59.66