LOD on 4th down
 

Situation: 4th and 5 for A at B's 29.5 yard line with 15 seconds left in 4th Quarter and A behind by 4 points. QB A7 roles out and runs for first down, but just before he's down he throws an incomplete IFP into the endzone at B's: A) 18 yard line, B) 22 yard line, or C) 19.5 yard line. There are 5 seconds left on the clock.

Enforcement? I think the options for A and B are fairly straight forward, but am interested in hearing about any special mechanics to help enforce the situation in C.

Make the foul from a whole yard line. It's an approximation anyways, especially if the QB is on the run when he throws.

I typically would use a whole yard line. I posted this way to see if there are alternatives to stepping off a 5 yard penalty, between yard lines, and then measuring for a first down for as in play C. In this case that action would dictate whether A keeps the ball for one more play, or if B takes the ball over on downs....right?

IFP foul is enforced from the end of the run (spot of the pass), penalty is 5 yards, loss of (right to repeat) down. If the subsequent spot is beyond the LTG, 1st down for A, clock starts on the ready. If the subsequent spot remains behind the LTG, 1st down for B, clock starts on the snap.

In case C, would you consider measuring if the end of the run was "ahead of the tape" by flipping the chains ahead by pivoting on the line to gain post? Or step off the 5 yard penalty, and then measure for a first down?

I'm interested in the clock status. If team A winds up with first down, and a stopped clock (with a lot of time taken for administration before the RFP, even w/o the possibly tricky measurement) for the incompletion, it seems they've gained a good deal for their illegal forward pass. Consider that the passer was well beyond the neutral zone when he let fly; seems like a deliberate attempt to conserve time. Would you invoke 3-4-6 and start the clock on the RFP? Seems the least you could do in the situation.

The IFP is considered a running play, and should the enforcement result in A being granted a 1st down, the game clock would start on the RFP

Concerning a measurement: If you have the privilege of working on a very well marked field (as in an artificial surface) then of course between the 20's you try to start a 1st down on a hash or yard line, then knowing if the dead ball spot has reached that hash ten yards down field you don't measure. If you start on a half yard spot it's a little trickier. The tape on the chain helps, but at best, Umpires footsteps are an imprecise science. If the covering official is on his game he will ensure the spot of the foul (even by moving his flag) is not that close either way....:-)

But what about 3-4-2 and 3-4-3(e)? Incomplete forward pass (doesn't matter whether it's a legal one), stopping the clock, and then 3-4-2 referring to clock stoppages under 3-4-3? Seems to me the clock has to stay stopped barring invocation of 3-4-6. Pretty good tactical foul by team A if that's not invoked; the extra time they'll get to pick a play is probably worth the distance they'll give up, when they have to go for the touchdown in just 5 secs. Of course the player could instead have thrown a legal backwards pass out of bounds & probably reduced that distance.

But why sweat that, when determining the spot the passer lost possession of the ball is so imprecise? Does the passer have possession as long as his passing hand is merely touching it? There's got to be a certain point in the throwing motion where the only control the player has of the ball is aiming it a little, and the player couldn't actually do anything else with it but release it; is it still a "run" at that point ("held or controlled")?

Robert, I don't understand your question...what I am saying is on any spot foul there is a little wiggle room as to where the flag actually falls. What we would not want to happen is if technically its 5.0 yards exactly that still leaves the ball at or beyond the line to gain, then we don't want an umpire to step off "5 yards and 2 inches" and the ball goes over to B. or the other way around.

Where are you going with this? IFP is considered a foul during a running play, and enforcement is from the end of the run (spot of the pass). Enforcement is from the Basic Spot, which provides the clock starting on the RFP (when the result is a continuous 1st down)

As for whether it's a 1st down, or not, depends ENTIRELY on whether the subsequent spot places the ball beyond, or behind, the LTG. That depends on how that precise spot was determined. (any and all efforts (mechanics) to insure precision in making that determination are appropriate and appreciated).

10-3-1, is the reference for the clock status.

But the action which caused the down to end (incomplete forward pass) also caused the clock to be stopped -- so this is not a case under 3-4-2 for the clock to start on the RFP, because of 3-4-2b.3. Didn't we settle it here just a short while ago that the clock status is determined by how the ball became dead on such a down, where the foul was during the down? Where is there anything in the Fed rules that would supsersede that, other than 3-4-6? The foul may have occurred during a running play, but the down still ended with an incomplete forward pass, so I don't see how the enforcement spot has anything to do with the timing provisions.

I don't see any mention in Fed 10-3-1 of anything about timing. Was there a recent inclusion of such a provision?