The Women's 100 metre freestyle swimming event at the 2011 Pan American Games was held on October 19, 2011, in Guadalajara, Mexico. The defending Pan American Games champion was Arlene Semeco of Venezuela.

This race consisted of two lengths of the pool, both in freestyle.

Records Prior to this competition, the existing world and Pan American Games records were as follows: World Record52.07Rome, ItalyJuly 31, 2009Games Record54.46Santo Domingo, Dominican RepublicAugust 11, 2003

Qualification Each National Olympic Committee (NOC) was able to enter up to two entrants providing they had met the A standard (57.6) in the qualifying period (January 1, 2010 to September 4, 2011). NOCs were also permitted to enter one athlete providing they had met the B standard (59.3) in the same qualifying period.

Results All times are in minutes and seconds.

KEY: q Fastest non-qualifiers Q Qualified GR Games record NR National record PB Personal best SB Seasonal best

Heats The first round was held on October 19. Rank Heat Lane Name Nationality Time Notes 1 1 4 Amanda Kendall 54.82 QA 2 2 4 Vanessa García 55.73 QA 3 3 5 Erika Erndl 55.98 QA 4 2 5 Jennifer Beckberger 56.15 QA 5 3 4 Tatiana Barbosa 56.47 QA 6 2 6 Nadia Colovini 56.66 QA 7 3 3 Arlene Semeco 56.69 QA 8 1 3 Liliana Ibáñez 56.83 QA 9 1 5 Daynara de Paula 57.14 QB 10 2 3 Caroline Lapierre 57.43 QB 11 1 2 Ariel Weech 57.97 QB 12 1 6 Wendy Rodriguez 58.14 QB 13 2 2 Karen Torrez 58.81 QB 14 3 6 Chinyere Pigot 58.95 QB 15 1 7 Allyson Ponson 59.59 QB 16 3 7 Karen Riveros 1:00.11 QB 17 3 1 Julimar Avila 1:00.15 18 2 1 Marie Meza Peraza 1:01.13 19 1 1 Britany van Lange 1:02.28 3 2 Fernanda González DNS 2 7 Kendese Nangle DNS

B Final The B final was also held on October 19. Rank Lane Name Nationality Time Notes 9 5 Ariel Weech 57.58 10 4 Caroline Lapierre 57.70 11 3 Wendy Rodriguez 58.03 12 6 Karen Torrez 58.84 13 2 Chinyere Pigot 59.03 14 7 Allyson Ponson 59.16 15 1 Karen Riveros 59.96 16 8 Julimar Avila 1:00.51

A Final The A final was also held on October 19. Place Lane Swimmer Nation Time Notes 4 Amanda Kendall 54.75 3 Erika Erndl 55.04 1 Arlene Semeco 55.43 4 5 Vanessa García 55.55 5 6 Jennifer Beckberger 55.68 6 8 Liliana Ibáñez 55.74 NR 7 2 Tatiana Barbosa 56.36 8 7 Nadia Colovini 56.53

References