It seems to me that the NFL would want to have exclusive rights to distribute this data and charge people a fee for access to it. Clearly I'm no expert in these legal affairs though.
It seems to me that the NFL would want to have exclusive rights to distribute this data and charge people a fee for access to it. Clearly I'm no expert in these legal affairs though.
IANAL, but I worked at ESPN and founded Fanvibe (YC S'10), and worked quite a bit with the leagues and lawyers on rights-related topics.
On the other hand, a live performance is generally not protected from copyright, so if you attend a live game to collect the data, you may be in the clear.
The data isn't owned by the NFL, but all recordings of the games are, and so any data obtained by watching recordings of the games could potentially be controlled by the NFL.
I wouldn't want to put a large bet on where exactly those lines are drawn, though.
Edit: I should note that even http://gdx.mlb.com/components/game/mlb/ contents are governed by http://gdx.mlb.com/components/copyright.txt which doesn't allow commercial use.
IANALTINALA.
I can't even give you a list of football fixtures coming up this weekend without breaking copyright law.