You can look through results from the each race for the last so many years here https://www.rundisney.com/results/ and put in different states/country for search criteria.
I think the first year I ran PHM they published runner count, how far they had traveled from, ages, etc. in the event guide; but I haven't seen anything like that in several years now. Results page might be the only way now.
I thought I'd seen some sort of stats site (possibly only temporary) for Tink event- literally the day of, or within a few days after it... around the time of the "less characters testing scandal/debacle.
There was a strava link with people who ran Tink and uploaded data to there I saw (it wouldn't be everyone just those that use it), not sure if that was it or not or how you go about finding it again.
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