I will start with breastroke- Gary Marshall(25-29) 1:02 high in the hundred 2:16 in the 200, David Guthrie(45-49) 1:07 in the 100 2:27 in the 200 Robert
Strand(60-64) 33.41 50 *** 1:15 100 ***. Between them 6 world records Marshall 1, Guthrie 2 and Strand 3. There are plenty more so add to the thread!!!!!