The men's 100 metre freestyle competition at the 1991 Pan Pacific Swimming Championships took place on August 23 at the Kinsmen Sports Center. The last champion was Brent Lang of US. This race consisted of two lengths of the pool, both lengths being in 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 23. B Final The B final was held on August 23. A Final The A final was held on August 23. References 1991 Pan Pacific Swimming Championships