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New walk-on commits Justin Weller, Crae McCracken, and Drew Hartlaub

Art,

You are actually wrong about the last part of you statement re the NFL combine laser timing. A participant must achieve a full stop at the line which is indicated by an "all clear" tone to start the 40 (this is laser gate one or zero dependent on which system is used). To achieve this "all clear" you must set up in your stance and achieve a laser tone lock. Once this is complete a tone will sound that signifies you can start at will, upon first movement of any body part the clock will start. This method is much stricter than a hand or partial Laser time such as starting the timer with a plunger or toe peddle release and a laser gate stopping the time. In other words it takes all human bias of the times registered and is often different that what the preliminary reported combine times are at the time of viewing on ESPN.


Really? When did they eliminate the two hand times which are used to determine the final (published) time?
 
Said a 4.25 - 4.30 true 40-Yard Dash Time (track timed) would equate to Journey Brown's worst efforts in the 100m (i.e., 11 sec). 3.70 to 3.75 would equate to his 40-Yard time within his best effort in the 100m 10.62 sec. If we're talking the absolute fastest true 40-Yard Dash times Journey Brown is capable of it's probably down in the low-to-mid 3.7 times. Again, Journey Brown is the reigning PIAA 100m sprint champion and even his times range by upwards of a half-a-second - IOW, anybody truly capable of recording a "true" 40-Yard Dash number 4.5 or better is moving pretty darn well (i.e., Journey Brown's times - a PIAA Sprint Champion - would range in the 3.75 to 4.25 range in a "true timed" 40-Yard Dash.).


This just keeps getting better and better.
 
This just keeps getting better and better.

My bad, forgot to add the correct reaction time back in and mis-calculated base time......his best time would convert to a "true" 40-Yard dash right around 4.25 - 4.30 seconds - his worst would be something in the 4.4 - 4.5 area. I just re-edited this message because I was re-running the numbers again. But again, after spending some time recalculating the numbers and adjusting correctly for reaction time....I'll stick with best being in the 4.25 range and the worst being upwards of 4.5.
 
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My bad, forgot to add the correct reaction time back in and mis-calculated base time......his best time would convert to a "true" 40-Yard dash right around 4.25 - 4.30 seconds - his worst would be something in the 4.4 - 4.5 area. I just re-edited this message because I was re-running the numbers again. But again, after spending some time recalculating the numbers and adjusting correctly for reaction time....I'll stick with best being in the 4.25 range and the worst being upwards of 4.5.

Here is an article I found on the very topic we are discussing in regards to Usain Bolt - in the article, they estimate his "true" 40-Yard times run within in his 100m times (40-Yards = 36.576 meters). Their estimate is that Usain Bolt runs a "true" 40-Yard time somewhere in the 4.1 to 4.2 area which would convert to sub-4.0 sec in the mid-3.9ish area using NFL methodology due to the elimination of reaction time at start. They also show his 10m split times (along with Powell's), which dramatically show how much slower the first 40 Yards are relative to the remainder - the first 10m take 1.89 sec, the second 10m only takes 0.99 sec... HIT THE LINK.
 
My bad, forgot to add the correct reaction time back in and mis-calculated base time......his best time would convert to a "true" 40-Yard dash right around 4.25 - 4.30 seconds - his worst would be something in the 4.4 - 4.5 area. I just re-edited this message because I was re-running the numbers again. But again, after spending some time recalculating the numbers and adjusting correctly for reaction time....I'll stick with best being in the 4.25 range and the worst being upwards of 4.5.


You're getting tangled in your underwear. We're not talking about Usain Bolt, we're talking about Journey Brown. We know that Brown's best time for 60m is 6.87. So running at that standard, what would his time be for 40 yards, or 36.576 meters?

You posit a best to worst range of 4.25-4.5 seconds? Well, if he's running 4.25, then he's covering the last 23m+ of his 60 in 2.62 seconds. That is sloooowww, particularly considering that he's moving into and sustaining his highest rate of speed during that part of the race, whether it's 60 or 100 meters. 4.5? That means he's covering the remainder of his 60 in 2.37. Still slow. Conclusion: at 40 yards he's north of 4.5. How much slower? Who knows? But if you want to grab tapes of his races and time his reaction and 10 meter splits, knock yourself out.
 
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You're getting tangled in your underwear. We're not talking about Usain Bolt, we're talkin

Usain Bolt's greatest advantage would be after he was fully accelerated (i.e., the last 60 to 70 meters). It takes even the fastest sprinters in the world almost 3.8 seconds to run 30m (~33 yards). The next 7 yards even at at top speed for the world's fastest humans would take just over another half second. Again, the fastest sprinters greatest advantage is the last 70 meters, not the first 30 meters. Journey Brown's embedded 40-Yard times on his 100m times probably range from 4.30 to 4.70 -- the timing system used at these high school "combines" eliminates at least 0.30 from "true" 40-Yard times in a track meet (using the methodology from the Usain Bolt article I linked above). IOW, using the timing methodology applied at these high school combines, Journey Brown would be expected to run "40 times" as low as the low 4's ranging up to 4.4....
 
Art,

They are not eliminated, there are actually a total of 8 times between to 2 40s that are run. There are two hand times that everyone gets lathered up about, then there is the hand plunger start(like Nike SPARQ née Regional Opening/Opening times) with the 10/20 and 40 yd splits, and then there is the final all laser corrected time each of which progressively appears to be different/slower than the next. At the end of the day this is just a partial metric of how fast or evasive the player is. You must also assess the pro shuttle and L-cone drill to determine what a player is really capable of and in the receivers case how they can achieve separation. Once pads go on and the player starts to really play football is the only time we can really truly know what they are capable of, the rest is just the underware olympics!

Really? When did they eliminate the two hand times which are used to determine the final (published) time?
 
Said a 4.25 - 4.30 true 40-Yard Dash Time (track timed) would equate to Journey Brown's worst efforts in the 100m (i.e., 11 sec). 3.70 to 3.75 would equate to his 40-Yard time within his best effort in the 100m 10.62 sec. If we're talking the absolute fastest true 40-Yard Dash times Journey Brown is capable of it's probably down in the low-to-mid 3.7 times. Again, Journey Brown is the reigning PIAA 100m sprint champion and even his times range by upwards of a half-a-second - IOW, anybody truly capable of recording a "true" 40-Yard Dash number 4.5 or better is moving pretty darn well (i.e., Journey Brown's times - a PIAA Sprint Champion - would range in the 3.75 to 4.25 range in a "true timed" 40-Yard Dash.).
You're nuts.
 
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