Not exactly within the premise of the thread title, but it gives me the chance to do my quadrennial airing of the gaping issue with swimming...
There should only be Freestyle swimming (aka 'swimming'). The others are a nonsense.
How the swimming sports body convinced the world that we need non-freestyle swimming events, is beyond me.
it's the equivalent of tripling all the track races at all distances to include a hopping, running backwards and moonwalking version (along with the current actual running we'll rename 'freestyle running'). Or the golf event but a second tournament using only 1 hand.
They invented arbitrary ways to swim slower. Hardly the olympic ideal of harder/better/faster/stronger.
The medal overlap proves this...I mean stone the crows you aren't telling me that the guy who's got an aerodynamic <5% fat physique, aerobics off the charts, and, crucially, spends his entire working day in a pool...NOT ONLY does a decent butterfly, but...get this...he can also put a turn in on breaststroke and freestyle...there are literally no end to his talents.
Any chat around swimmers and their ridic medal hauls need to have an asterix next to them too.