I recently picked up an injury preventing me from running or cycling so I took to the pool for regular swims. My idea here is twofold:
1) Having stats for fastest swim for different distances like 400m, 800m, 1km, 1mile, 1,2mile(half Ironman) and 2,4mile (full Ironman). This feature exists for running: Estimated Best Efforts. So I suggest the same for swimming, regardless if its open water or pool.
2) It's always great to see a trophy after a run or cycle or most other sports, but sadly none exist for pool swimming. My suggestion is to award trophies for pool swims, each time you break a personal record for a certain distance and those distances are mentioned in idea one. Would love to see some trophies/achievements for a pool swim.
Note: I know that segments exist but that is for open water swimming. My suggestion on idea two in only for pool swim. Thanks!