How Precise Are the Weigh-In Scales? If a WW Weighs 171.2, Will That 0.2 Be Detected by the Scale?

[Leonard Haid]

Or does he have to weigh at least 171.5 lbs to miss weight? 172? Or can it be 171.1?
EDIT: Mongoosemk12 sent me a link which showed that there have been a couple of fighters who have officially missed weight at 0.2 lbs over. I wonder though, will every athletic commission treat this the same way? And, I noticed that there have been no fighters who have missed weight by 0.1 lbs, so maybe that 0.1 can't be detected.

 

[grimballer]

170 is the limit, 171 is the max you can go over

 

[Mongoosemk12]

I believe most of the commissions are using real scales so there isn't a .2lb allowance such as you would find with an electronic bathroom scale.

 

[Leonard Haid]

170 is the limit, 171 is the max you can go over

You didn't understand the question. To repeat, can the weigh-in scale detect 0.1 pounds over? So, if a fighter weighs 171.1, will the scale actually detect that, and will the fighter have to shed that 0.1 pounds? If not, how much over will the scale detect?

 

[Leonard Haid]

I believe most of the commissions are using real scales so there isn't a .2lb allowance such as you would find with an electronic bathroom scale.

I'm just wondering if those traditional scales that use a balancing weight can detect increments of 0.2 lbs, or how precise they actually are. I've never heard of a fighter missing weight by 0.2 lbs, have you?

 

[Mongoosemk12]

I think they do indeed detect .1lbs over as you stated above in your 171.1lb example.

 

[grimballer]

You didn't understand the question. To repeat, can the weigh-in scale detect 0.1 pounds over? So, if a fighter weighs 171.1, will the scale actually detect that, and will the fighter have to shed that 0.1 pounds? If not, how much over will the scale detect?

171 is already a pound over so the max would be 171 (imo)

 

[Leonard Haid]

I think they do indeed detect .1lbs over as you stated above in your 171.1lb example.

I have a poor memory and a short attention span, but I don't recall ever witnessing a fighter miss weight by 0.1, 0.2, 0.3 pounds, like that. It seems to be by a minimum of one pound every time, or maybe half a pound?

 

[Mongoosemk12]

Knock yourself out Recent fights only, but a good data pool.
https://www.betmma.tips/ufc_fighters_who_missed_weight.php

 

[grimballer]

I have a poor memory and a short attention span, but I don't recall ever witnessing a fighter miss weight by 0.1, 0.2, 0.3 pounds, like that. It seems to be by a minimum of one pound every time, or maybe half a pound?

that’s when they used to do the strip show. Most guys would lose .5 pounds removing their underwear.

 

[myjohnson9]

You didn't understand the question. To repeat, can the weigh-in scale detect 0.1 pounds over? So, if a fighter weighs 171.1, will the scale actually detect that, and will the fighter have to shed that 0.1 pounds? If not, how much over will the scale detect?

Different commissions have different rulings! I remember this being a huge issue diaz said GsP got Canada treatment and they let him weigh 170.4 for championship weight.

But to answer your question most commissions don’t round down

 

[Leonard Haid]

Knock yourself out Recent fights only, but a good data pool.
https://www.betmma.tips/ufc_fighters_who_missed_weight.php

Excellent find. Thank you. There were only two fighters on there who missed weight by 0.2 pounds, nobody by 0.1 pounds, the majority by 0.5. I'm still wondering about the precision of those scales a little bit, and if all the athletic commissions treat 0.2 over the limit the same way, but your link is really good. Thanks again.

 

[20falarVerdades]

Depends, are you GSP fighting in Canada?

 

[Doughie99]

You didn't understand the question. To repeat, can the weigh-in scale detect 0.1 pounds over? So, if a fighter weighs 171.1, will the scale actually detect that, and will the fighter have to shed that 0.1 pounds? If not, how much over will the scale detect?

I believe most digital scales have a "granularity" of 0.1kgs OR 0.1lbs. Meaning that's the smallest increment they can usefully detect/ display.
Scales in rest of the world will def be 0.1kgs which is, 0.22lbs (let's call it 0.2lbs).
So if you do weigh 171.1lbs then the scales will show that.

The other issue is do the scales "truncate the measured weight to 1decimal place" or "round the measured weight to 1 decimal place".
I am fairly sure most digital scales actually TRUNCATE the number, so that if you actually weigh 170.09lbs, they will still display 170.0 lbs. (this is truncating the weight to 1 decimal place, NOT rounding the number to 1 decimal place). Any movement on the scales (and almost everyone will be moving to a TINY degree on the scales, just to keep balance) will translate to a tiny pressure-difference and therefore a constant-fluctuation in the weight. That's generally why when you step on most scales it measures the weight and then "locks in" a number and displays it to you (maybe it flashes and then stops flashing).

There must be an Analog-to-digital converter in there somewhere too (part of the pressure sensors I'd guess), and these will vary in quality for sure. Basically the pressure-sensors convert the pressure on them to a digital value.

Also ambient temperature affects almost everything like this (the delicate pressure sensors etc) so that's why each time it'll calibrate itself to zero when switched on, or maybe on a commercial scale there's a "calibrate now" button where you're essentially instructing the scales to consider whatever pressure-sensor readings it currently has as "This is 0.0lbs / 0.0kgs".

 

[Bluntforce420]

Nate Diaz vs Ben Henderson weigh in

They said Diaz was 155.6 and he had to cut the .6 (I think)

 

[grimballer]

Here’s another example

 

[weed]

the precision is precise.

 

[Leonard Haid]

[/QUOTE]
Good one. Thanks. I also noticed in that video that there was a woman who was standing behind the towel when Romero was in the nude.

 

[grimballer]

Good one. Thanks. I also noticed in that video that there was a woman who was standing behind the towel when Romero was in the nude.[/QUOTE]

she probably saw that pic with jones and wanted to see it for her self

 

[TheNinja]

the precision is precise.