tag:blogger.com,1999:blog-5204092591876211047.post8328559148443749981..comments2023-03-23T07:34:12.473-04:00Comments on Advanced NFL Stats Community: Kickoff or Receive?Unknownnoreply@blogger.comBlogger13125tag:blogger.com,1999:blog-5204092591876211047.post-70805495405033385192011-01-14T13:20:04.118-05:002011-01-14T13:20:04.118-05:00Sorry,but I'm not seeing this.
I've checke...Sorry,but I'm not seeing this.<br />I've checked my databases for 2005,2006,2009 and 2010 and receiving teams are winning more halves in each and every one of those years.Receiving teams are winning 268 to 224 in 2005....not losing by roughly that amount.Overall receiving teams are winning halves at a 52% clip.I'm also only seeing 39 tied halves in 2008 not 109.I'm prepared to be proved wrong,but..denisnoreply@blogger.comtag:blogger.com,1999:blog-5204092591876211047.post-60078092847451533882011-01-08T15:19:05.599-05:002011-01-08T15:19:05.599-05:00I think the first half of your analysis is great, ...I think the first half of your analysis is great, however I question the usefulness of the 2nd half. Instead of counting teams winning or losing the game, it would be much more valuable to see which team won the 2nd half (the kicking team or the receiving team). As far as the benefit of choosing to kick or receive is concerned, we should not care at all about the score entering the half, only the amount of points scored after the half. Clearly, there would be a number of variables that could confound 2nd half data (point spread, injuries, momentum, etc.) more than they would confound 1st half data, but in an effort to try to isolate the value of kicking or receiving, you should only look at winning each half as an isolated incident and hope these other variables wash out.<br /><br />To this end, would it be possible to post this 2nd half analysis?<br /><br />Or... am I way off?Ryan Bollandhttps://www.blogger.com/profile/08103501362318926617noreply@blogger.comtag:blogger.com,1999:blog-5204092591876211047.post-92192842187290230172011-01-08T07:25:46.909-05:002011-01-08T07:25:46.909-05:00little bit suprising, kind of seems to mesh with h...little bit suprising, kind of seems to mesh with http://www.advancednflstats.com/2010/01/expected-points-ep-and-expected-points.html<br /><br />exptected value of start a drive at the 20 or so isn't that great<br /><br />guess the defenses are better in real life than they are on MaddenAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-5204092591876211047.post-24669789862104826712011-01-07T22:24:36.668-05:002011-01-07T22:24:36.668-05:00My old friend Mr. Tarr (or is that DokTarr), I'...My old friend Mr. Tarr (or is that DokTarr), I'll have you know I did a chi-square test just the other day.parinellahttps://www.blogger.com/profile/03802604259779936852noreply@blogger.comtag:blogger.com,1999:blog-5204092591876211047.post-82710077838620197502011-01-07T22:10:14.010-05:002011-01-07T22:10:14.010-05:00"parinella", this is a site for people w..."parinella", this is a site for people who take statistics seriously, not dilettantes like yourself.Tarrhttps://www.blogger.com/profile/14368810359650066790noreply@blogger.comtag:blogger.com,1999:blog-5204092591876211047.post-3898371626844297242011-01-07T22:09:10.762-05:002011-01-07T22:09:10.762-05:00Did a quick calculation from 2002-2008. (I don...Did a quick calculation from 2002-2008. (I don't have my pbp files updated for 2009 and 2010 yet). Over this time frame the team kicking off to start the game won at a clip of 51.1%. I also simulated a coinflip for every game during this time frame to see how often it would end up heads at a 51.1% clip over such a large sample and 13% of the time it ends up at that rate or higher. So there is a 13% chance that this rate is due to pure chance. However, it does give more credence to the idea that you should kick off to start the game.Buzznoreply@blogger.comtag:blogger.com,1999:blog-5204092591876211047.post-78288952450233291022011-01-07T11:24:15.113-05:002011-01-07T11:24:15.113-05:00My theory to explain this is that it's all due...My theory to explain this is that it's all due to the opening drive. Either a) there's some sort of psych or vibe ramping up the defense or chilling out the offense or b) offensive play-calling becomes sub-optimally conservative, so the initial possession of the half is less efficient than other possessions. Maybe it's also possible that c) home teams or better teams are more likely to choose to start with the ball at the beginning of the game because they aren't afraid to turn it over.parinellahttps://www.blogger.com/profile/03802604259779936852noreply@blogger.comtag:blogger.com,1999:blog-5204092591876211047.post-41553923097182625562011-01-07T02:28:22.176-05:002011-01-07T02:28:22.176-05:00Can you post the raw data (or where you got it)?Can you post the raw data (or where you got it)?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5204092591876211047.post-56013726800285574612011-01-03T22:40:06.234-05:002011-01-03T22:40:06.234-05:00Ed,
Very interesting. I have long thought the sa...Ed,<br /><br />Very interesting. I have long thought the same as you and was going to do a similar study during the offseason. Out of curiousity what is the simple winning % of the entire game for teams receiving the opening kickoff to the game by year?Buzznoreply@blogger.comtag:blogger.com,1999:blog-5204092591876211047.post-70388807635072775132011-01-03T21:51:55.332-05:002011-01-03T21:51:55.332-05:00James
I agree that it makes no sense. My first tho...James<br />I agree that it makes no sense. My first thought when I got these results was that I had a problem with the code I'd written to parse the data. I checked it and my code appears to count correctly.<br /><br />I've been giving this some thought since I posted this and is a possibility that the teams receiving the ball in the second half are behind. And if both teams played to form then the receiving team would go on to lose the game. Another way of saying this is that the team receiving the ball in the first half built enough of a lead to win the game.<br /><br />There are several other ways of examining the dat and perhaps one day I will take the time to do it.Ed Anthonyhttps://www.blogger.com/profile/15442990388729810908noreply@blogger.comtag:blogger.com,1999:blog-5204092591876211047.post-50047458876278620002011-01-03T17:35:27.247-05:002011-01-03T17:35:27.247-05:00Very interesting. Tough to figure.Very interesting. Tough to figure.Jim Glassnoreply@blogger.comtag:blogger.com,1999:blog-5204092591876211047.post-5516457298720180622011-01-03T11:28:55.456-05:002011-01-03T11:28:55.456-05:00That doesn't make any sense. Weird.That doesn't make any sense. Weird.Jameshttps://www.blogger.com/profile/01838293735141324662noreply@blogger.comtag:blogger.com,1999:blog-5204092591876211047.post-23890729630502616862011-01-02T16:17:07.101-05:002011-01-02T16:17:07.101-05:00That is a surprising result indeed!
It would be i...That is a surprising result indeed!<br /><br />It would be interesting to see total possessions per team per half, excluding kneel-downs.Tarrhttps://www.blogger.com/profile/14368810359650066790noreply@blogger.com