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Unread 03-26-2018, 12:09 PM
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Blue Wins

Found it interesting after a review, CHS SWV event the blue side had 40 wins while red had 21 through 62 qualification matches. (1 tie) Is this coinsidence?
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Unread 03-26-2018, 12:28 PM
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Re: Blue Wins

Yes.
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Unread 03-27-2018, 06:31 AM
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Re: Blue Wins

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Originally Posted by AustinShalit View Post
Yes.
Interesting that you are sure. I would like to think so too. However experience tells me such things should be confirmed. Not sure if any checks or measures exist or are made to assure field setup and action is working and recorded properly.
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Unread 03-27-2018, 01:43 PM
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Re: Blue Wins

Its a very strange coincidence that also has been shown to happen at all regionals/events. For whatever reason, blue alliance wins more often than red. This is not implying that a red alliance won't win a regional, but for whatever reason the blue alliance is more likely to win a match. Its a very weird trend. I don't remember where all on that data is compiled, but if I find it, I'll link it.
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Unread 03-27-2018, 10:00 PM
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Re: Blue Wins

My guess is that if this is truly the case, it has to do with playoff blumper color assignment. IIRC assuming a perfect bracket the higher alliance is always blue. There, it makes sense that the blue alliance generally has a higher chance of winning. I expect if you kust look at the data for quals, you’ll see a much more random distribution.

I can assure you, there is no grand FRC conspiracy to disadvantage the red alliance
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Unread 03-27-2018, 10:04 PM
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Re: Blue Wins

Quote:
Originally Posted by AriMB View Post
My guess is that if this is truly the case, it has to do with playoff blumper color assignment. IIRC assuming a perfect bracket the higher alliance is always blue. There, it makes sense that the blue alliance generally has a higher chance of winning. I expect if you kust look at the data for quals, you’ll see a much more random distribution.

I can assure you, there is no grand FRC conspiracy to disadvantage the red alliance
Not quite - in quarterfinals, higher seed is always red. After that, the colors are as follows:
SF:
  • Seed 1 or 8 - Red
  • Seed 2 or 7 - Red
  • Seed 3 or 6 - Blue
  • Seed 4 or 5 - Blue
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Unread 03-27-2018, 10:31 PM
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Re: Blue Wins

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Originally Posted by Hitchhiker 42 View Post
Not quite - in quarterfinals, higher seed is always red. After that, the colors are as follows:
SF:
  • Seed 1 or 8 - Red
  • Seed 2 or 7 - Red
  • Seed 3 or 6 - Blue
  • Seed 4 or 5 - Blue
Oops...remembered that backwards

Without seeing the data then my best guess would be too small of a sample size to properly converge to 50%.
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Unread 03-27-2018, 10:52 PM
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Re: Blue Wins

Well obviously there is a statistical bias in the elims but it is an interesting trend in the qualification matches where they shown be about 50/50.
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Unread 03-28-2018, 07:18 AM
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Re: Blue Wins

Quote:
Originally Posted by AriMB View Post
My guess is that if this is truly the case, it has to do with playoff blumper color assignment. IIRC assuming a perfect bracket the higher alliance is always blue. There, it makes sense that the blue alliance generally has a higher chance of winning. I expect if you kust look at the data for quals, you’ll see a much more random distribution.

I can assure you, there is no grand FRC conspiracy to disadvantage the red alliance
Was never concerned about any conspiracy, simple quality control. If a trend/pattern like this presents, are any checks made? I am unsure of how the field/scoring is set. Was a limit switch slightly out of position? Were all elements in balance, per specification? Are their specifications?

Appreciate I am not pointing fingers or blaming anyone. It could well be coincidence, but should parameters be set so that FTA's can assure the field is working properly?
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Unread 03-29-2018, 07:10 PM
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Re: Blue Wins

Quote:
Originally Posted by 346CADmen View Post
Was never concerned about any conspiracy, simple quality control. If a trend/pattern like this presents, are any checks made? I am unsure of how the field/scoring is set. Was a limit switch slightly out of position? Were all elements in balance, per specification? Are their specifications?

Appreciate I am not pointing fingers or blaming anyone. It could well be coincidence, but should parameters be set so that FTA's can assure the field is working properly?
Maybe it follows the theory about police officers tagging red cars more often than beige or others that are more color neutral. The red colored bumpers stand out more, and therefore induce more ref fouls because their movement and activity naturally get caught by the ref's eye more often?
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Unread 03-30-2018, 07:13 PM
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Re: Blue Wins

Quote:
Originally Posted by 346CADmen View Post
Was never concerned about any conspiracy, simple quality control. If a trend/pattern like this presents, are any checks made? I am unsure of how the field/scoring is set. Was a limit switch slightly out of position? Were all elements in balance, per specification? Are their specifications?

Appreciate I am not pointing fingers or blaming anyone. It could well be coincidence, but should parameters be set so that FTA's can assure the field is working properly?
Watching a few of the webcasts I have seen FTAs go use a calibration sick to make sure a scale trips at the correct point after matches that see heavy robot to scale interaction. I believe there is a spec for how far the scale should move to trigger. There is also a general spec for how accurate the field should be for dimensions and such. There is another interesting thread discussing the ratio of the different color randomizations.
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Unread 04-01-2018, 01:33 PM
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Re: Blue Wins

At the Glacier Peak Week 4 event in PNW, there were only 2 matches in playoffs where blue won, and they were by the same team in semis. Every other match was red.
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Unread 04-01-2018, 01:58 PM
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Re: Blue Wins

There is a statistical bias for red alliance in elims. The point he is making is only for quals where there should not be one.
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Unread 05-09-2018, 03:22 PM
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Re: Blue Wins

Qual. 103 Galileo Houston

Watched this match (for something unrelated) but noticed a score error that gave me concern which has to do with the OP of this thread.

Toward the end of this match (57 seconds) Blue clearly controls red switch (indicated by the FMS/scoreboard as well as casual observation. However at 30 seconds left (endgame), red regains control, per FMS/scoreboard although no more cubes have scored or even shifted.

What means of field operation quality control exist and are put in action if a question comes about?
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Unread 05-09-2018, 08:19 PM
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Re: Blue Wins

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Originally Posted by 346CADmen View Post
Qual. 103 Galileo Houston

Watched this match (for something unrelated) but noticed a score error that gave me concern which has to do with the OP of this thread.

Toward the end of this match (57 seconds) Blue clearly controls red switch (indicated by the FMS/scoreboard as well as casual observation. However at 30 seconds left (endgame), red regains control, per FMS/scoreboard although no more cubes have scored or even shifted.
Red played a force...
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