Best I've noticed is 175 on 4* (best I've recorded on that guy is 171) - worst that same guy has achieved is 108, still Match Hard.

He has also achieved a higher gain on Cardio (119) than on Match Practice almost immediately after (111). Several players show this - no idea how frequently it happened in the past as I can't comment on what I don't see (unless I don't have any data at all then I'm happy to comment on anything).

Thats why I question the range of values because I hadn't noticed such a wide range before this. If the range of possible random values was lowered at the lower end it would after all give a lower average.