“Cognitive psychology tells united state that the unaided person mind is breakable to numerous fallacies and illusions due to the fact that of its reliance on its memory for lively anecdotes fairly than methodical statistics.” – Steven Pinker

It is getting close come camp time, which way coaches obtain out their stopwatches and time 40s. I am always amazed at what i hear. High institution athletes strut around and claim 4.4s or 4.5s prefer they are an daily occurrence. However these room 15- and also 16-year-old adolescents. Much more often 보다 not— in truth almost all of the time—the math doesn’t it seems to be ~ to include up.

You are watching: 100 meter dash to 40 yard dash converter

The athlete v a 24-inch vertical jump doesn’t operation a 4.4. A 55m sprinter who runs a 6.9 FAT doesn’t run a 4.4. One 11.5 100m dash does no equate come a 4.4. That is mathematically difficult for an athlete to operation that time and still acquire a 4.4. Yet that is what i hear. I think the track is capturing on through college recruiters due to the fact that it is simple to watch who important is fast. Timers nothing lie. Electronic timers administer facts. A 4.4 is a statistic or various other things follow to mark Twain, who ran 4.47 in Clinton, Iowa, in 1871. A 4.4 is one illusion for most. So let’s look in ~ this magical number an ext closely.

How the 40 is being timed is the first question that requirements to be asked. The only measure that renders sense come me is a true electronic-to-electronic timer. Athletes begin the clock when their hand comes off a touchpad, and also stopit as soon as their bodies rest an electronic barrier of some sort. The is the many exact method I deserve to think that (such together Freelap timers).

Even the NFL incorporate is contempt off. Scouts sitting close to the complete line manually begin each player. To my knowledge, there is no research on the time difference between purely electronic and also combine style. In track, the conversion between FAT and also handheld in a 55mm dash is .24 seconds. From that point, it is the Wild West.

Two different papers in the Journal that Strength and Conditioning discovered that hand timing is significantly faster than electronic timing. In both papers, the researchers case that the handheld timers to be experienced. I am guessing that way they exercise with electronic timers come see just how close they acquire to its results. In the 2010 paper, the differences in between the timers ranged indigenous .14 to .19. The an outcome was a difference between .22 and also .31 between pure electronic and also hand-held (personally, I range from .24 come .3 through the Freelap). The is a an extensive difference in a world that stays in the hundredths. Now, litter in high school coaches making use of their thumbs to stop the watch or your cell phones, and also numbers deserve to be crazy and incredibly inaccurate. And how numerous of those coaches have not time a 40 due to the fact that the vault summer? I have the right to see 4.4 in this scenario.

The next variables room shoes and surfaces. Over there are large differences in time once these room added. When we run fly 10s, the selection when athletes stay spikes or flats is native .03 to .06. My quicker runners have bigger differences. Big that out 20 an ext yards and also those hundredths start to add up. This does not take right into account the start, when athletes require the most traction. I have actually no numbers because that this since everyone constantly seems come remember to bring spikes on start days.

Surfaces make a huge difference too. A hot, hard track is always faster 보다 poorly groomed turf, a basketball court, or the parking lot. Training pair of shoes don’t perform so well on a basketball floor.

What brings me come this rant is the truth that many high institution athletes think they have to be running remarkable times. Yet their numbers don’t complement reality. I have an NFL player who plays slot, gunner, and anti-gunner. He has run 4.47 and also 4.48 for 3 NFL teams. His current team said him the he is their third fastest. He ran 40s on one old track in 4.71 ~ above the Freelap. (His Nike Frees are around the worst shoes you can run in. They tip your foot forward and also cause your forefoot come jam right into the ground, hence coming to be a brake.) in ~ the very same time, very same practice, my best sprinter (10.83 FAT) ran a 4.51 40 in spikes. Is one faster than the other? They room close, however on this day, with different shoes, they were different.

Now the dose of reality. These room positional averages for NFL combine from 2007 to 2012, many thanks to Wikipedia. Remember, being the finest in each place usually has some correlation through speed.


Table 1. Positional averages because that NFL combines from 2007 to 2012. Source Wikipedia.
position Time
large receiver 4.55
Cornerback 4.55
Running earlier 4.59
safety and security 4.62
exterior Linebacker 4.74
Tight end 4.77
Fullback 4.80
within Linebacker 4.80
Quarterback 4.87
defensive End 4.88
protective Tackle 5.13
Offensive center 5.30
offensive Tackle 5.32
offensive Guard 5.36

These space hand-started, beam-finished averages. That way for every WR who runs a 4.4, an additional runs a 4.7. And your fastest men rarely weigh more than 190 pounds. So, if she a running earlier or broad receiver v a 4.4, welcome to the peak of the class!

What space some an excellent markers because that HS athletes? My basic workout street is 10m. I choose meters since athletes emphasis too lot on do the efforts to convert to a 40 time rather than top top finding peak speed. Something under 1.0 in the paris 10 is really great for a high institution athlete. My finest HS athlete’s time was .95. If they room slightly end 1.0, they can still operation a 4.4/4.5. The start is a substantial component. In fact, most NFL 4.4s have good starts yet never wake up for top-end speed. Your sub-4.4s room the ones who can transfer from acceleration come top-end speed.

Our starts are in yards. Guys who finish up to run decent times deserve to go under 3 seconds electronically in the 20yd and 4 seconds in the 30yd. Those space realistic clues for good high school athletes. Any type of high college athlete under 5.0 in a 40 digital is fast.

Now, this is all just relevant if you are truly interested in seeing her players acquire faster and checking if your routine is making athletes faster. You don’t need to share this times through the college recruiters. Permit them number it the end on your own, or subtract 0.3 native their best Freelap 40.

Since you’re here……we have actually a little favor come ask. Much more people are reading charline-picon.com 보다 ever, and also each main we lug you compelling content from coaches, sport scientists, and physiotherapists that are committed to building better athletes. You re welcome take a moment to share the write-ups on social media, engage the authors through questions and comments below, and also link to posts when proper if you have actually a blog or take part on forums of associated topics. — SF


*
*

Chris Korfist has actually been a high college coach in track and football for almost 30 years, with much more than 80 All-State athletes. He has likewise been a toughness coach in ~ the college and high institution levels, working with many sports. Korfist owns a personal facility called Slow man Speed college that helps build athletes ranging from civilization Champion to middle school. He has actually consulted with experienced sports teams everywhere the world, including the NFL, MLB, NBA, and also Rugby League.

Korfist has published study on acceleration training and also is an advisor for Auckland college of Technology’s SPRINZ. Additionally, the co-owns track Football Consortium (
TFConsortium), is co-founder the Reflexive performance Reset, and also has discussed training in many blogs and podcasts.

See more: Which Typically Increases Faster As A Cell Grows Surface Area Or Volume


Comments

*
*
Bryan Mann

March 19, 2017 in ~ 7:30 pm


*
*
Phil Campbell

January 2, 2020 at 4:44 pm


Good article. An excellent standards. I’ve had actually 18,000 athletes because that a two-day speed an approach camp end the critical 30 years focusing on the 20. I’ve probably had actually 250 who have told me lock ran a 4.3, 4.4. I have seen approximately 10 legit 4.3s in 30 years. I’ve just seen two under 4.3, and also I have to see the two and three times prior to I think it, Ricardo Lockette and Jabari Geer. Edelman to be close.I favor the standards, but there are two type of QBs today. Pocket passing 5.0 guys and running QBs 4.6 to 4.8. Peyton Manning or Tom Brady would never pass the 4.8 test and also may battle for a 5.2, but these two did pretty well in the NFL.