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100m to 40 yd dash conversion

Posted on 8/4/24 at 10:46 pm
Posted by KingOfTheWorld
South of heaven, west of hell
Member since Oct 2018
6672 posts
Posted on 8/4/24 at 10:46 pm
One more post - probably not the last - on the performance of Noah Lyles for those who don’t understand how fast these guys run.

9.784 for 100m converts to...

40 Yard Dash = 04.08
100y = 08.95
110y = 09.84

Yes, I know football speed and skill is different and can’t really be compared due to pads, jumping, reading blocks, vision, changing direction, 240 pound linebackers trying to take your head off, I understand all that, just trying to give some perspective on how fast the motherfrickers are running.

100m to 40 yard dash conversion

This post was edited on 8/4/24 at 10:48 pm
Posted by IAmNERD
Member since May 2017
21615 posts
Posted on 8/4/24 at 11:02 pm to
You can't just take the time and do some math to convert it to what his 40 time would be. You'd have to actually have a split time at 40 yards because that would be the slowest part of the race for a sprinter as they accelerate.
Posted by mizzoubuckeyeiowa
Member since Nov 2015
37996 posts
Posted on 8/4/24 at 11:12 pm to
How about getting g up to speed?

Sprinters generally hit maximum velocity at around the 40 and then naturally start decelerating at around 70-80 meters.
This post was edited on 8/4/24 at 11:13 pm
Posted by Pelican fan99
Lafayette, Louisiana
Member since Jun 2013
37626 posts
Posted on 8/5/24 at 4:44 am to
That's not how it works baw
Posted by Ingeniero
Baton Rouge
Member since Dec 2013
20170 posts
Posted on 8/5/24 at 7:17 am to
Not exactly how it works, but I can get you a little closer

Noah's 30m split was 3.90. His 40m split was 4.76. 40yds is 36.576m. If you interpolate linearly (which won't be totally accurate but can get us close enough) that's a 40yd split of 4.465. Now, sprinters have to react to the gun and NFL players have their time start when they move, so 0 reaction time. Noah's reaction time was the slowest of the group, 0.178. Subtract that from his time and his split becomes
4.465-0.178 = 4.287. Not bad for a guy whose race is the 200m
Posted by Kato
Sec 102
Member since Nov 2006
2925 posts
Posted on 8/5/24 at 7:41 am to
quote:

Ingeniero



But for real though, thanks for figuring that out
Posted by moneyg
Member since Jun 2006
59197 posts
Posted on 8/5/24 at 8:11 am to
quote:

Not exactly how it works, but I can get you a little closer

Noah's 30m split was 3.90. His 40m split was 4.76. 40yds is 36.576m. If you interpolate linearly (which won't be totally accurate but can get us close enough) that's a 40yd split of 4.465. Now, sprinters have to react to the gun and NFL players have their time start when they move, so 0 reaction time. Noah's reaction time was the slowest of the group, 0.178. Subtract that from his time and his split becomes
4.465-0.178 = 4.287
The blocks help a lot.

And, it should be noted that Lyles was dead last at 40 yards.
Posted by jizzle6609
Houston
Member since Jul 2009
13765 posts
Posted on 8/5/24 at 8:13 am to
Deon ran a 3.9 full padded
Posted by JimTiger72
Member since Jun 2023
11238 posts
Posted on 8/5/24 at 8:21 am to
Dumb… Usain Bolt ran a 9.58 100m, but a 4.22 40yd dash
Posted by mdomingue
Lafayette, LA
Member since Nov 2010
37426 posts
Posted on 8/5/24 at 8:26 am to
quote:

9.784 for 100m converts to...

40 Yard Dash = 04.08



No. Several great sprinters in the past, Carl Lewis, for example, did not have great 40 times relative to their 100m times. He was always a slow starter, often taking the lead in the last 30 meters.


If the goal of the 40 was to measure top-end speed then they would take the 40 time as the benchmark but instead, clock the time for the last 10 yards or even just measure the top speed they achieve. The goal is to measure reaction time and acceleration.
Posted by usc6158
Member since Feb 2008
37748 posts
Posted on 8/5/24 at 8:31 am to
Christian Coleman is the best starter in history by a good margin and ran a 4.12 40. Lyles probably in the 4.2s I would guess.
Posted by QJenk
Atl, Ga
Member since Jan 2013
16581 posts
Posted on 8/5/24 at 9:11 am to
4.287 is damn impressive, especially considering that he basically started in last and only gained ground at top speed.
Posted by IamNotaRobot
OKC
Member since Nov 2021
922 posts
Posted on 8/5/24 at 9:13 am to
….in street clothes with tennis shoes
Posted by Oilfieldbiology
Member since Nov 2016
39604 posts
Posted on 8/5/24 at 10:35 am to
quote:

Sprinters generally hit maximum velocity at around the 40 and then naturally start decelerating at around 70-80 meters.


I don’t think this is true as the 200m times are significantly faster on a per meter basis than the 100m. Or at least it’s not significant deceleration.
Posted by jamsmiley
Zachary La
Member since Nov 2008
650 posts
Posted on 8/5/24 at 3:49 pm to
There is a video on YouTube that explains Christian Coleman is fast started in history at 4.12 and that bolts world record time he ran the equivalent of a 4.13 Times below that are make believe
Posted by KingOfTheWorld
South of heaven, west of hell
Member since Oct 2018
6672 posts
Posted on 8/6/24 at 5:55 am to
Damn I haven’t logged in since this post. Y’all beat me up pretty good

I just thought it was an interesting conversion exercise to look at how fast Olympic sprinters are running and how it compares to football speed. That’s the first conversion calculator that came up. So, it’s not a perfect comparison/conversion but suffice it to say they fast as fvk.

Y’all can continue your bashing of ol King now.
Posted by zosorep
Member since Aug 2024
2 posts
Posted on 8/7/24 at 6:31 pm to
No offense, but also not how it works. You can’t simply calculate a 100 meter race down to a 40 yard race because they are drastically different races. You’re trying to compare runs that are drastically different in both distance and race strategy. The 40 yard dash is about getting to top speed as quickly as possible while a 100 meter race is about sustaining that top speed over a much longer distance and for as long as possible without form breaking down. This is why Xavier Worthy said himself you cannot compare the two. A football player might hold their top speed for a second or two at most in a 40 yard dash while a sprinter is going to hold that speed for 5-6 seconds. Again, drastically different.

The best example to explain the true difference in speed between these types of athletes is by looking at Usain Bolt when he ran a 40 at a 2019 Super Bowl event. He ran a 4.22 in sweatpants and flat bottom sneakers with no ending runway, tying the then combine record. You can find the video easily. Mind you, this was two years after he retired and at 37 years old. Estimates of a true 40 yard dash during his prime had him at around 3.6 seconds.
Christian Coleman, who holds the indoor 60 meter world record ran a 4.1 at 85% effort. Video as available easily.
To say Noah Lyles would only run a 4.287 40 yard dash is laughable. Good math skills though tbf.
Posted by zosorep
Member since Aug 2024
2 posts
Posted on 8/7/24 at 7:00 pm to
Lmao, you’re good bro and you are 100% correct that sprinters are waaayyyyyy faster and most people don’t get how much faster they are. Here’s a quick example..Worthy was a track athlete in addition to playing football. His best EVER 100m time comes in dead last at the US Olympic Trials this year for the first round of heats…by a lot, like nearly half a second. Track speed is just different.
Posted by Zendog
Santa Barbara
Member since Feb 2019
5556 posts
Posted on 8/7/24 at 7:41 pm to
Bob Hayes
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