Reading up on this more, it seems to be based on stadium/venue capacity, which means any possible TFRs are at a limited number of areas for very specific series, for which there is data available [1]
The TFR in TFA appears to be much more ambiguous than this. I'm not sure they're really comparable.
What about SEAMS, mentioned here? https://www.faa.gov/uas/getting_started/where_can_i_fly/airs...
iirc, it is not considered official data, so if it makes a mistake and you violate a TFR, YOU are on the hook.
Reading up on this more, it seems to be based on stadium/venue capacity, which means any possible TFRs are at a limited number of areas for very specific series, for which there is data available [1]
The TFR in TFA appears to be much more ambiguous than this. I'm not sure they're really comparable.
https://adds-faa.opendata.arcgis.com/datasets/faa::stadiums/...