mark49152
Premium Member
Correct. Same goes for Ao5. That is the mean of 3/5 with best and worst excluded, as done in competition. Some events like 6x6 and 7x7 use Mo3 format instead.
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Older cubers discussions
- Thread starter MarcelP
- Start date
Logiqx
Veteran
Mathematically it is called a truncated mean and the purpose is to remove statistical outliers:
https://en.wikipedia.org/wiki/Truncated_mean
During an Ao100 cubers discard the fastest 5% and the slowest 5%. If you look at the discarded times you'll see that they are not representative of your typical times and so the truncated mean is a better indicator of performance.
On smaller averages we still discard the fastest and slowest 5% of solves, rounded up to the nearest solve. 5% of 12 is 0.6 so we round up to 1 and discard the fastest and slowest solve.
https://en.wikipedia.org/wiki/Truncated_mean
During an Ao100 cubers discard the fastest 5% and the slowest 5%. If you look at the discarded times you'll see that they are not representative of your typical times and so the truncated mean is a better indicator of performance.
On smaller averages we still discard the fastest and slowest 5% of solves, rounded up to the nearest solve. 5% of 12 is 0.6 so we round up to 1 and discard the fastest and slowest solve.
pipkiksass
Veteran
How do you time your solves? Most dedicated cubing timers will compute your Ao12 for you. Like many, I use CSTimer, it's been going for years, and it's very good.
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pglewis
Veteran
I was going to suggest CSTimer as well. It automatically keeps a running Ao5 and Ao12 as well as best for each.
Jason Green
Veteran
Yep, ao5 ao12 just think of them as a cubing term, not the English meaning of those same words.
Dallas comp today, new PB 2x2 average and single, 3x3 average, and OH single. Might have made the OH cut if I didn't bobble on the first solve, second one messed up OLL. 18.21 3x3 average, goal was sub 19 so I'm happy with that.
Dallas comp today, new PB 2x2 average and single, 3x3 average, and OH single. Might have made the OH cut if I didn't bobble on the first solve, second one messed up OLL. 18.21 3x3 average, goal was sub 19 so I'm happy with that.
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pglewis
Veteran
My hero!
mark49152
Premium Member
Nice results @Jason Green, especially that 3x3 average.
h2f
Premium Member
Congrats @Jason Green!
newtonbase
Premium Member
Well done Jason.
muchacho
Veteran
Congrats Jason! And good luck today if you have more events (cubecomps is not loading for me).
edit: oops, seems it was a one day comp.
edit: oops, seems it was a one day comp.
Logiqx
Veteran
mafergut
Legend
Very nice progress, @Jason Green, congratulations.
Jason Green
Veteran
Thanks everyone!
It's definitely getting harder to improve each comp. That 2x2 was pretty lucky for me, and since I rarely practice it I'm not thinking I'll beat it for quite a while. I've been spoiled and my first comp with no PBs is gonna be a bit hard to take I'm afraid!
It's definitely getting harder to improve each comp. That 2x2 was pretty lucky for me, and since I rarely practice it I'm not thinking I'll beat it for quite a while. I've been spoiled and my first comp with no PBs is gonna be a bit hard to take I'm afraid!
mark49152
Premium Member
Yeah, I'm running out of side events I can learn on the spot as PB insurance
newtonbase
Premium Member
You're going to have to take your socks and shoes off soon.Yeah, I'm running out of side events I can learn on the spot as PB insurance
newtonbase
Premium Member
World Championships website is up http://www.rubiksworldparis2017.com/en/home/
Registration isn't open but the schedule and qualifying is showing. I have permission to go for the weekend and can do 3BLD, 3x3 (and pyraminx).
Registration isn't open but the schedule and qualifying is showing. I have permission to go for the weekend and can do 3BLD, 3x3 (and pyraminx).
bubbagrub
Veteran
Yay -- this is exciting. Looks like I can definitely do 2x2, 3x3, pyraminx (as can everyone) plus FMC and probably Skewb. If I really focus on speed in BLD at Peterborough, it's possible I could qualify for that. Doing MBLD will depend on getting 5/5 in Peterborough, which doesn't seem super likely... I'm already painfully close to qualifying for Sq-1, but I doubt I'll make it. So, definitely four events, likely one other (skewb) and a handful of unlikely possibles...
Shaky Hands
Premium Member
Am a bit disappointed Clock qualification is 15s rather than 20s, but they've got to do what they need to do to keep the comp running on time.
Will look forward to it anyway, should be a fun experience even if I'm just going to do 15 solves (and 10 of those are for 2x2 and Pyra, events I don't practice.) Looks like all my solves will only be on the Saturday too, so will do some sightseeing over the course of time I'm there.
Will look forward to it anyway, should be a fun experience even if I'm just going to do 15 solves (and 10 of those are for 2x2 and Pyra, events I don't practice.) Looks like all my solves will only be on the Saturday too, so will do some sightseeing over the course of time I'm there.
newtonbase
Premium Member
I'm only going for 1 night and it looks like I might not be able to get there for 3x3 but 3BLD isn't until late and there's still pyraminx! I don't really care as long as I get to compete in something. PB streak will be at risk though.
I've booked my hotel and hope to get travel sorted tomorrow.
I've booked my hotel and hope to get travel sorted tomorrow.
Logiqx
Veteran
Qualification times are somewhat harder than US nationals which I guess isn't surprising. At least we can all do 2x2, 3x3, Pyra. Maybe I should started practicing the pointy puzzle again!
I seem to be averaging around 28s for OH but I don't know if I'll get an official sub-30 at Peterborough. I have good days and bad days putting aside competition nerves! Skewb, I'm probably averaging around 11-12 but any given Ao5 is very scramble dependent so the 12s qualification is tight for me. In 4x4, I think I'm averaging around 1:15 so the 1:10 is somewhat unlikely but it is doable on a good day.
I've been practicing all of my events for Peterborough with no specific focus on any one event but I might have to put a little more focus on OH and Skewb with just two weeks to go!
I seem to be averaging around 28s for OH but I don't know if I'll get an official sub-30 at Peterborough. I have good days and bad days putting aside competition nerves! Skewb, I'm probably averaging around 11-12 but any given Ao5 is very scramble dependent so the 12s qualification is tight for me. In 4x4, I think I'm averaging around 1:15 so the 1:10 is somewhat unlikely but it is doable on a good day.
I've been practicing all of my events for Peterborough with no specific focus on any one event but I might have to put a little more focus on OH and Skewb with just two weeks to go!
