The women's 4×100 m freestyle relay at the 2009 World Aquatics Championships took place on July 26, 2009 at the Foro Italico in Rome, Italy.

Records Prior to the competition, the existing world and championship records were as follows: World Record Netherlands (NED)Inge Dekker (53.77)Ranomi Kromowidjojo (53.61)Femke Heemskerk (53.62)Marleen Veldhuis (52.62) 3:33.62 Eindhoven, Netherlands 18 March 2008 Championship Record Australia (AUS) Libby Lenton (53.42)Melanie Schlanger (53.95)Shayne Reese (54.90)Jodie Henry (53.21) 3:35.48 Melbourne, Australia 25 March 2007

The following records were established during the competition:

Date Round Nation Time Record 26 July Heat 2 Sally Foster (54.18) Marieke Guehrer (53.47) Shayne Reese (53.19) Meagen Nay (54.42) 3:35.26 CR 26 July Heat 3 Britta Steffen (53.76) Daniela Samulski (53.81) Petra Dallmann (53.69) Daniela Schreiber (53.48) 3:34.74 CR 26 July Final Inge Dekker (53.61) Ranomi Kromowidjojo (52.30) Femke Heemskerk (53.03) Marleen Veldhuis (52.78) 3:31.72

Results Heats Rank Heat Lane Nation Swimmers Time Notes 1 3 5 Britta Steffen (53.76)Daniela Samulski (53.81)Petra Dallmann (53.69)Daniela Schreiber (53.48) 3:34.74 CR, NR 2 4 4 Femke Heemskerk (53.83)Hinkelien Schreuder (54.93)Inge Dekker (52.97)Ranomi Kromowidjojo (53.21) 3:34.94 3 2 4 Sally Foster (54.18)Marieke Guehrer (53.47)Shayne Reese (53.19)Meagen Nay (54.42) 3:35.26 4 3 6 Therese Alshammar (54.27)Josefin Lillhage (53.55)Sarah Sjöström (53.14)Gabriella Fagundez (54.35) 3:35.31 NR 5 4 5 Li Zhesi (54.27)Zhu Qianwei (54.34)Tang Yi (54.03)Pang Jiaying (54.21) 3:36.85 6 4 3 Fran Halsall (53.02) CR, NRCaitlin McClatchey (54.98)Katherine Wyld (54.80)Amy Smith (54.22) 3:37.02NR 7 3 4 Julia Smit (54.25)Kate Dwelley (54.65)Caitlin Geary (54.59)Christine Magnuson (53.63) 3:37.12 8 3 2 Eszter Dara (55.29)Evelyn Verrasztó (53.90)Ágnes Mutina (54.28)Katinka Hosszú (54.17) 3:37.64 NR 9 3 3 Victoria Poon (54.70)Erica Morningstar (54.84)Geneviève Saumur (53.89)Heather MacLean (54.79) 3:38.22NR 10 2 5 Aurore Mongel (54.77)Hanna Shcherba (54.66)Ophelie-Cyrielle Etienne (55.44)Malia Metella (53.79) 3:38.66 11 2 3 Haruka Ueda (54.88) NRHanae Ito (55.00)Yayoi Matsumoto (54.98)Misaki Yamaguchi (54.03) 3:38.89 NR 12 2 6 Olga Klyuchnikova (54.88) NRVictoriya Andreeva (54.79)Maria Ugolkova (55.56)Anastasia Aksenova (55.25) 3:40.48NR 13 4 6 Renata Fabiola Spagnolo (55.68)Laura Letrari (54.68)Erica Buratto (55.19)Silvia Di Pietro (55.52) 3:41.07 14 3 7 Yulia Khitraya (56.59)Aleksandra Gerasimenya (53.75)Sviatlana Khakhlova (55.44)Iryna Niafedava (56.74) 3:42.52 15 4 1 Linda Laihorinne (56.63)Emilia Pikkarainen (56.50)Riia-Rosa Koskelainen (56.02)Hanna-Maria Seppälä (53.83) 3:42.98 16 2 7 Katarina Listopadova (57.14)Katarina Filova (55.27)Miroslava Syllabova (56.44)Martina Moravcová (54.78) 3:43.63 17 2 0 Nina Van Koeckhoven (56.67)Sascha Van den Branden (56.49)Annelies de Mare (56.12)Jolien Sysmans (55.37) 3:44.65 NR 18 2 2 Fiona Doyle (56.57) NRClare Dawson (56.16)Niamh O'Sullivan (57.38)Melanie Nocher (57.10) 3:47.21 NR 19 4 2 Quah Ting Wen (56.14)Amanda Lim (56.26)Mylene Ong (57.46)Lynette Lim (57.68) 3:47.54 20 3 1 Alana Dillette (57.11)Arianna Vanderpool-Wallace (54.85)Teisha Lightbourne (58.52)Alicia Lightbourne (57.86) 3:48.34NR 21 4 7 Arlene Semeco (55.98)Jeserick Pinto (57.83)Ximena Vilar (57.06)Yennifer Marquez (58.28) 3:49.15NR 22 1 5 Dar'ya Stepanyuk (55.43)Oksana Serikova (56.38)Kseniya Grygorenko (59.82)Daryna Zevina (57.63) 3:49.26 23 2 1 Rugile Mileisyte (56.94)Grite Apanaviciute (58.16)Raminta Dvariskyte (1:00.71)Aiste Dobrovolskaite (59.16) 3:54.97 NR 24 4 9 Nicol Cremona (1:02.14)Melinda Sue Micallef (59.71)Davina Mangion (1:00.80)Talisa Pace (1:00.34) 4:02.99 25 4 8 Ma Cheok Mei (1:00.64)Tan Chi Yan (1:01.35)Fong Man Wai (1:01.07)Che Lok In (1:01.69) 4:04.75 26 3 8 Chittaranjan Shubha (1:00.68)Murugaperumal Mercy Venpa (1:06.93)Pooja Raghava Alva (1:03.86)Talasha Prabhu (1:00.94) 4:12.41 27 2 8 Binta Zahra Diop (1:01.79)Ouleye Diallo (1:04.66)Mareme Faye (1:07.01)Khadidiatou Dieng (1:01.96) 4:15.42 NR 28 1 4 Monica Bernardo (1:03.18)Jessika Cossa (1:05.56)Faina Salate (1:04.04)Gessica Stagno (1:05.12) 4:17.90 29 4 0 Sara Abdullahu (1:00.36)Reni Jani (1:09.79)Debora Keci (1:06.78)Rovena Marku (1:04.30) 4:21.23 30 3 0 Kiran Khan (1:08.30)Aqsa Tariq (1:13.55)Rida Mitha (1:11.34)Mahnoor Moqsood (1:09.82) 4:43.01 – 1 3 Moira Fraser (58.74)Kirsten LaphamKimberley EesonNicole Horn DSQ

Final Rank Lane Nation Swimmers Time Note 5 Inge Dekker (53.61)Ranomi Kromowidjojo (52.30)Femke Heemskerk (53.03)Marleen Veldhuis (52.78) 3:31.72 4 Britta Steffen (52.22) Daniela Samulski (53.49)Petra Dallmann (53.75)Daniela Schreiber (52.37) 3:31.83 NR 3 Lisbeth Trickett (52.62) OCMarieke Guehrer (53.60)Shayne Reese (53.25)Felicity Galvez (53.54) 3:33.01 OC 4 1 Amanda Weir (54.47)Dara Torres (53.72)Christine Magnuson (53.86)Dana Vollmer (53.18) 3:35.23 5 6 Therese Alshammar (53.58) NRJosefin Lillhage (53.58)Sarah Sjöström (53.62)Gabriella Fagundez (54.57) 3:35.35 6 2 Li Zhesi (54.04)Zhu Qianwei (53.73)Tang Yi (54.16)Pang Jiaying (53.70) 3:35.63 AS 7 7 Fran Halsall (53.31)Caitlin McClatchey (54.43)Katherine Wyld (54.74)Amy Smith (54.51) 3:36.99 NR 8 8 Eszter Dara (55.09)Evelyn Verrasztó (54.20)Ágnes Mutina (54.74)Katinka Hosszú (55.50) 3:39.53

External links Preliminary Results Final Results