When to move the chains

[goldsmi]

It would be 1st and 25 only if the foul occurred after the RFP.

2-26
ART. 5 . . . The line to gain is the yard line established when a new series (first
down) is awarded. Unless there is a penalty following the ready-for-play signal,
the line to gain is 10 yards in advance of the foremost point of the ball when
placed for the first down of the series. If the line to gain extends into the end zone, the goal line is the line to gain.