Re: How many keepers have been scored so far?
 

At the Florida regional I kept track of the wins versus keeper hanging. I discovered that every time a keeper was hung on the rack, that alliance won the match.
There was only one exception during the qualifying matches. Thus for 68 matches played, only one time that a keeper was on the rack did the alliance lose the match. This gives a 98% win record for an alliance that hung a keeper.

Now, we only saw about 20 successful keeper hangings. Thus, using this as the statistic base, an alliance still has a 95% chance of a win by hanging a keeper. With such a high percentage, I am surprised that more teams do not at least attempt the keeper hanging.

Does anyone have statistics on the other regionals?

I predict that hanging a keeper will be attempted at the nationals on every match.

Jerry w

Re: How many keepers have been scored so far?
 

I suspect that robots that can hang keepers are pretty good robots. There is likely a correlation due to that, more than due to the importance of keepers on the final score.


fyp ;)

I'd guess something like 20-40% of the teams at the Championship will be able to score keepers more or less successfully. There's a lot of ramp-bots that have qualified, and a lot of hanger-bots that don't have auto. Given 6 teams on the field at any time, chances are one of them would have an auto-mode. But there will be a significant number of matches without any keepers attempted.

Re: How many keepers have been scored so far?
 

Us (67) and 1114 were very consistant with Keeper scoring at GLR, hopefully it can be kept up at West Michigan. Although I don't remember the actual percentage, I believe 33 attempted everytime, and scored many times as well (A lot has happened since GLR)

I hope we can stay consistant at West Michigan.

Re: How many keepers have been scored so far?
 

At Silicon Valley Regional, there was only 1 keeper scored the whole regional. This was by team 846 the funky monkeys

Re: How many keepers have been scored so far?
 

Alot were scored at UTC. 230, 1124, 716, 25, 40, and a few others got them onto the rack a few times.

Re: How many keepers have been scored so far?
 

1718 was very consistant with their keepers. I believe i saw 1 time that they did not score in auto

Re: How many keepers have been scored so far?
 

The best autonomous score I've seen was 648. The robot had a crab drive system, so it went up to the rack, and then tied to put down the tube on the 2nd rung. The tube dropped vertically off it. The announcer had the time to say, "Oh, looks like it won't be scored." The tube then hits the ground, bounces up and onto the first rung. It happened to also be the first score at the Midwest regional.

Re: How many keepers have been scored so far?
 

At Boilermaker, the #1 seeded team (1730, Team Driven from Lee's Summit, Missouri) was also the most effective scorer of keepers. I don't recall the number of keepers they scored, but I do recall that they attempted a keeper every time they took the field and succeeded much more often than they failed. Their 10-1 qualifying record and their regional win with 234/1555 speak (loudly) to support Gary's suspicion.

Re: How many keepers have been scored so far?
 

While I have no actual data to back things up, Gary's data does seem to suggest that the extra ring on the rack is very important.

It would not surprise me to see keeper defense being played at the championships.

Re: How many keepers have been scored so far?
 

Actually I was arguing the opposite. That individual keeper wasn't the deciding factor, although it certainly can help. I saw one match at Detroit where the opponents were going to attempt to put on a spoiler, and the best place for it would have been in the keeper position. So the keeper made a small portion of the score (row of 3 plus a single, vs 2 rows of 4). I don't recall whether the spoiler actually was placed, though.

My point was that a team that had time to program keeper placement, and do it well, probably built a good robot that could score a lot of ringers in tele-mode.

903 had a good defense pattern that they ran at Detroit - but with the few attempts at keepers, it had no effect. I would also expect to see a lot of defensive bots run a keeper-intercept pattern.

Re: How many keepers have been scored so far?
 

To correlate with Gary's information, we won all but one match that we scored a keeper on and that loss was the first match (by 2 points) in which we were the only ones that could score.

Re: How many keepers have been scored so far?
 

We definately felt there was a momentum shift (or drive) when we scored keepers vs. when we missed. There were only a couple time when we missed by a lot (ie. the keeper fell on the way to the rack) but most times we were inches of making it- if not actually making it. Twice our suction cup didn't release and the keeper didn't drop- but we got it the entire way there. We have the distiction of being Cut-off twice- Once in the Regional and once during the Winter War Zone Scrimmage. (Not sure who else can claim that this year!!! :) )

So momentum and excitement seemed to play a big part in the rest of the match and that "ahhh... almost made it" let down may have helped do the opposite.

All in all- I was surprised to see so many teams not even try. FIRST should have made them more worth the time, effort and accomplishment- Point wise. (this may have given the proper incentive for more teams to spend the time perfecting autonomous scoring)

Re: How many keepers have been scored so far?
 

Yeh
That was very lucky, as one of the programmers responsible for our autonomous mode, it was very tough to get it to work reliably. In the eliminations, after a couple of quick tweaks, we got it to work fairly consistant (3 in a row), but after getting bashed up quite a bit in the end of the semis or finals, (I cant remember when) the front drive wheels got tweaked off course and it all went downhill from there.
Malhon Godwin