2016 Boulder weight issue

[evanperryg]

Originally Posted by FYRERobot5480

We are wondering about the diameter of the balls, having only 1 ball, we can't compare weights, but the manual says the ball is 10" diameter, but ours is measuring as 9 5/8th.

Anyone else noticed this? We are wondering if it has to do with our altitude, (almost 5000 ft) and how competing at lower altitude could affect our shooter if the size changes this much.

We noticed this as well, and we're at 577ft so I'm sure that's not it . We haven't dimensioned the two additional balls we purchased, but the KOP ball definitely comes in at a little less than 10." We haven't massed any of them, but if the humidity has to do with it, the balls should equalize over time. Those of you who have posted ball weights, if you are able to provide your shop's temperatures and humidity, I'd like to start organizing some of this data more nicely.

[Jcarbon]

When I massed our boulders today, they were quite consistent. We only have grey, FIRST branded balls from Andymark.

Original KOP boulder: 283.3g
Additional boulders from Andymark:
285.8g
286.6g
284.2g
285.5g

[AllenGregoryIV]

Here are our weights. All AndyMark Boulders.

1 272.13 kick off ball
2 283.14
3 293.48
4 282.39
5 284.73

[s_forbes]

I made a spreadsheet for the gray boulders listed in this thread here: https://docs.google.com/spreadsheets...it?usp=sharing

If anyone has more boulders to add, please do so!

Statistics so far:
Avg mass: 286.3 grams
Standard deviation: 4.72
Standard deviation (as percentage of total mass): 1.65%

[D_Price]

Can't wait to see the spreadsheet in a little bit. +1

Originally Posted by s_forbes

I made a spreadsheet for the gray boulders listed in this thread here: https://docs.google.com/spreadsheets...it?usp=sharing

If anyone has more boulders to add, please do so!

Statistics so far:
Avg mass: 286.3 grams
Standard deviation: 4.72
Standard deviation (as percentage of total mass): 1.65%

[Pauline Tasci]

S All the boulders Code Orange has ordered have come in and here is the information we have gathered. We have 12 gopher balls, one KOP ball, and 10 andymark balls.

A=ball number
B= circumfrence
C= diameter
D= vendor
E= weight

Thanks!