Diameter of Monaco Track is Short by 60 cm (Approx.)

Oh I also tried comparing with other tracks and not just with FBK stadium

LOL at trying to measure with google maps.

forcerunner wrote:

LOL at trying to measure with google maps.

I believe google maps use the same scaling variables factors on all map locations . Also if you measure something today on the map , the distance wont change if you measure again next month or next year, no such thing as a GPS signal interference

Internetsherlock wrote:

So i did some research since i am seeing too many posts lately regarding Monaco track being a bit short. I don't know for sure if my findings are accurate but here we go...

As most of you know you can measure distance on google map by right clicking anywhere on the map and then setting the points you like to measure. Since the Monaco track can't be fully viewed from google map i decided to measure just the diameter and then compare it to the FBK stadium where Bekele set the 5000m record.

According to the measurement it does come a bit short around 60 to 70 cm difference . So if a diameter is short by 60 cm , how much shorter would be for one lap? Can some mathematician on LR solve the equation?

FBK stadium

https://ibb.co/LkfFrKs

Stade Louis II Monaco Stadium

https://ibb.co/kmp23Yj

4/10 you might get a few bites heh.

A facility like the one in Monaco is never wheeled or measured with a calibrated device. They use a cat to determine the length of lane 1. If the cat can make it around without taking a nap, its good to go.

i am still waiting for LetsRun Math Expert :D..

None of you seem to take this post seriously but whatever yoo

Monaco is a non-standard track with wider-radius turns than normal, and shorter straits, so that end-to-end measurement should be shorter.

The crucial piece of information is the turn radius, from that you can calculate everything, though it's complicated if it's variable. Get a satellite or a drone and find out that for us, exactly.

You can't find out anything at all with a wheel, or a cat. Tracks are more exact than that. Way more!

Thought this thread was great. Someone attempts to measure a track by google video.

Up for deleted thread of the week and is restored.

i'd believe it

Bad Wigins wrote:

You can't find out anything at all with a wheel, or a cat. Tracks are more exact than that. Way more!

Respectfully disagree. Cats are reknowned for waking the straightest line of any animal (genetic trait inherited from ancestors hiding the numbers of their cat packs), which means they always hit the tangent. Why do you think the Egyptians revered them so much? They helped keep the sides of the pyramids in straight lines. The 1904 Olympic marathon actually went through 37 cats measuring the distance through the tangents (unfortunately most were hit by cars before the 37th finally got to the stadium - the term “cat-like reflexes” was coined ironically by the race director).

el hombre wrote:

The 1904 Olympic marathon actually went through 37 cats measuring the distance through the tangents (unfortunately most were hit by cars before the 37th finally got to the stadium - the term “cat-like reflexes” was coined ironically by the race director).

What cars? C'mon man, you had me up until there.

Measure the width and you will find it to be wider. There are several configurations to tracks. The only correct measurement of the distance around is to measure it.

You don't need to be a math expert to find the perimeter of a stadium shape.

Ideally, you'd give us the measurement of the straight and the width as well, but seeing as that's unavailable, let's assume they are equal on both tracks.

The measurement of the Monaco track is roughly 399.44m then.

So for a 5000m race, that's exactly 7 meters short. Using Cheptegei's average m/s of 6.61936, that means we need to add 1.06 seconds to his time, giving him a rounded time of:

12:36.42. Still gets it by nearly a full second.

better than a d wrote:

Measure the width and you will find it to be wider. There are several configurations to tracks. The only correct measurement of the distance around is to measure it.

They built a roof to cover most of the track so you can't measure it from above. How convenient!

That's not the diameter.

A track is two semi circles on either end of a rectangle.

The diameter of the combined circle would be the distance form the home straight to the back straight measured perpendicularly at any point.

What you measured is the diameter plus the long side of the rectangle.

If that is shorter than usual, then the turns are wider and gentler, not necessarily shorter.

And if it was longer it would just mean longer straights and shorter turns.

None of that would show a lap being less than 400m.

Internetsherlock wrote:

So i did some research since i am seeing too many posts lately regarding Monaco track being a bit short.

thank you for bringing to light this obvious intentional flaw added to the fbk stadium. i've just crunched some numbers and verified via google maps that the track is MUCH shorter then the olympic standard of 400m.

i will also mention that i think your calculations were off since its more of a 2.01 meter difference instead of the 60-70cm that you initially estimated.

it is quite shocking that such a flaw in a stadium where 2 world records occurred. however, after digging through historical records, i have discovered that the facility was renovated in 2005 meaning both world records are still valid, however every race ran on or after 2005 has a flawed time by 0-1.5 seconds which is ridiculous.

therefore i will like to call out all of these people as their meet records are completely off the real time they should have been:

Richard Thompson (2014)

Churandy Martina (2013)

Abdalleleh Haroun (2018)

Haile Gebrselassie (2009)

Dayron Robles (2011)

Paul Kipsiele Koech (2007)

Dafne Schippers (2015 & 2016)

Shakima Wimbley (2018)

Pamela Jelimo (2008)

Sifan Hassan (2017)

Jennifer Simpson (2018)

Meseret Defar (2006)

Queen Harrison (2014)

Sofia Assefa (2017)

German National Team (2017)

Star wrote:

That's not the diameter.

A track is two semi circles on either end of a rectangle.

The diameter of the combined circle would be the distance form the home straight to the back straight measured perpendicularly at any point.

What you measured is the diameter plus the long side of the rectangle.

If that is shorter than usual, then the turns are wider and gentler, not necessarily shorter.

And if it was longer it would just mean longer straights and shorter turns.

None of that would show a lap being less than 400m.

you clearly don't know what your are talking about. yes, the op messed up the initial estimate but you failed to realize that the track is still short since you didn't properly measure it. if we measure from the end of one turn to the start of the other turn and then add the the measurement of a full circle (since the turns are a circle cut in half) then we can determine that the length of the track is not 400, but is 397.99 which clearly doesn't equal 400.

I think you mean circumference

You are failing to take account of the fact that Joshua Cheptegei, AND HIS SHOES, also expanded in the heat, making his actual race 4937.23m long. Bekele still rules the roost.