The women's 400 metre individual medley competition at the 2006 Pan Pacific Swimming Championships took place on August 18 at the Saanich Commonwealth Place. The last champion was Jennifer Reilly of Australia. This race consisted of eight lengths of the pool. The first two lengths were swum using the butterfly stroke, the second pair with the backstroke, the third pair of lengths in breaststroke, and the final two were freestyle. Records Prior to this competition, the existing world and Pan Pacific records were as follows: Results All times are in minutes and seconds. Heats The first round was held on August 18, at 10:40. B Final The B final was held on August 18, at 19:08. A Final The A final was held on August 18, at 19:08. References 2006 Pan Pacific Swimming Championships 2006 in women's swimming