record ▁breaking ▁Swedish ▁sw immer , ▁who ▁was ▁born ▁in ▁Mal m ö , ▁Sweden . ▁Currently ▁she ▁res ides ▁in ▁Sund sv all ▁and ▁trains ▁with ▁the ▁Sund sv alls ▁Sw im ▁Club ▁under ▁coach ▁Hans ▁Berg qu ist . ▁ ▁Kam mer ling ▁has ▁twice ▁lower ed ▁the ▁world ▁record ▁in ▁the ▁ 5 0 - meter ▁but ter fly ▁event . ▁In ▁ 2 0 0 0 , ▁she ▁was ▁a ▁member ▁of ▁the ▁ 4 × 1 0 0   m ▁fre est yle ▁team ▁that ▁were ▁awarded ▁bronze ▁med als ▁during ▁the ▁Summer ▁Olympics . ▁ ▁Personal ▁best s ▁ ▁Long ▁course ▁( 5 0 ▁m ) ▁ ▁Short ▁course ▁( 2 5 ▁m ) ▁ ▁Sw imming ▁events ▁ ▁Notes : ▁ ▁World - best ▁performance . ▁ ▁World ▁record . ▁ ▁Club s ▁ ▁B oll n äs ▁SS ▁ ▁S öder ham ns ▁SS ▁ ▁Sund sv alls ▁SS ▁ ▁References ▁ ▁External ▁links ▁▁▁ ▁Biography ▁at ▁F IN A ▁ ▁Category : 1 9 8 0 ▁birth s ▁Category : L iving ▁people ▁Category : S wed ish ▁female ▁sw imm ers ▁Category : F em ale ▁but ter fly ▁sw imm ers ▁Category : O lymp ic ▁sw imm ers ▁of ▁Sweden ▁Category : Sw imm ers ▁at ▁the ▁ 2 0 0 0 ▁Summer ▁Olympics ▁Category : Sw imm ers ▁at ▁the ▁ 2 0 0 4 ▁Summer ▁Olympics ▁Category : Sw imm ers ▁at ▁the ▁ 2 0 0 8 ▁Summer