New Stats Pages: Fenwick % by Game Score (Alpha version...)

by Hawerchuk on Nov 20, 2011 12:03 PM EST in Behind the Net

I think this is a sign that Fenwick/Corsi analysis has really taken hold. I've periodically posted Fenwick Tied numbers over the years, but it's only this season that people have started asking for them to be available every morning at behindthenet.ca. It was an incredibly rainy day here yesterday, so I finally found the time to write the code for it. This is the alpha version, so it's running in the old version of the site, and I haven't yet put it into the daily feed, so all you get is the last four seasons, with data for score tied and for up/down 1 and 2 goals, both at home and on the road:

I'm sure this will beget requests for further data categories...All in due time, so please bear with me as I roll this feature out. I'll work the code into the server in the next couple of days, so the 2011-12 season data will be available very soon. Enjoy!

Oh, and if you do find this data useful and feel so inclined, please make a donation to my favorite charity: Education in Need El Salvador. It's a great organization, and the kids, who I attempted to teach English on a trip to Latin America, are awesome!

And here's a primer on Advanced NHL Statistics, including Corsi and Fenwick analysis.

(btw, I already know playoff TOI is wrong...on the list...)

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Thank you sir!

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by Rob L on Nov 20, 2011 12:05 PM EST reply actions

Bless you Gabe

I can’t tell you how much time Behind the Net saves me from pulling the data myself. I can scratch yet another tedious job off my list, thanks to you sir.

by Rob Vollman on Nov 20, 2011 12:07 PM EST reply actions

Rob, as IT dude, is tedium not your life’s passion?

by Hawerchuk on Nov 20, 2011 12:11 PM EST up reply actions

I was afraid you’d say that my life’s passion was pulling it myself.

by Rob Vollman on Nov 20, 2011 4:31 PM EST up reply actions

Yowza!

I have never taken the time to understand the Corsi/Fenwick analysis, but checking out those spread sheets makes me want to know what it’s all about. To the internet!

Don't blame me, I voted for Kodos! Follow me on Twitter @TJCAPS.

by TJCAPS on Nov 20, 2011 12:26 PM EST reply actions

Corsi: All attempted shots
Fenwick: Corsi, but without blocked shots.

Worked out as a percentage of all shots attemped by either team. In the long run will match goal percentage too, and it’s a great proxy to tell us what percentage of the time a team has the puck or is in the opposing zone.

The score can affect the stats because teams behave differently when chasing or protecting a lead, so it’s broken out.

Like most of the stats, it’s a million times simpler than it tends to sound.

by Rob Vollman on Nov 20, 2011 4:29 PM EST up reply actions

¡Mil gracias!

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by JaredL on Nov 20, 2011 12:34 PM EST reply actions

I was looking up some info on Adam Larsson a minute ago, and BtN’s (presumably auto-generated) ad led off with

Moderate to severe hot flashes,
Night sweats,
Vaginal dryness?

Which, are there a lot of menopausal women using Behindthenet?

by Passive Voice on Nov 20, 2011 12:35 PM EST reply actions

Did you take your mom’s computer down to the basement with you?

by Hawerchuk on Nov 20, 2011 1:19 PM EST up reply actions

Awesome stuff.

I assume the up one/down one includes empty net situations?

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by Triumph44 on Nov 20, 2011 12:36 PM EST reply actions

yes. On the list to be fixed.

by Hawerchuk on Nov 20, 2011 12:47 PM EST up reply actions

Your awesomeness has no bounds sir!

This is a key metric imo, and having it at my fingertips is unreal.

Thank you very much Gabe.

by Woodguy on Nov 20, 2011 1:06 PM EST via mobile reply actions

This is great, Gabe.

Also, thanks for the charity link. Making a little donation is a great way to thank you for what you’ve done for the community.

@BSH_EricT
Writer at Broad Street Hockey

by Eric T. on Nov 20, 2011 3:05 PM EST reply actions

Awesome

This is perfect timing. Exactly the data I need for a project I’m working on

by SnarkSD on Nov 20, 2011 3:11 PM EST via mobile reply actions

Thank you, I’m pretty sure I nearly crashed timeonice trying to find the NHL Fenwick tied ranking.

by MacIsaacFC on Nov 20, 2011 3:20 PM EST reply actions

Something I’m curious about, as far as I can tell the behindthenet site has skipped over at least one game (Bos vs Mtl Oct 29).

Is this a common glitch and something that resolves itself?

by Stephan Cooper on Nov 21, 2011 12:50 AM EST reply actions

The site skips over games for the following reasons:

1. A rookie debuts and he is not yet in the player database
2. NHL.com changes a player’s name (you’d be amazed how often this happens)
3. The official scorer forgets to put the goalie in for an entire period (happens a lot more in MSG than anywhere else)

I have to go back and hand-edit the feed whenever these things occur. #1 and #2 are easy to fix…#3 is a bit more of a pain, so I only do it every two months or so.

by Hawerchuk on Nov 21, 2011 1:22 AM EST up reply actions

In addition to the MTL-BOS game, there’s a NSH-PHX game missing too.

by Hawerchuk on Nov 21, 2011 1:23 AM EST up reply actions

I hate #2

The Vaclav-to-Vinny Prospal thing happens every year, and maybe that’s understandable, but why do they toggle from Daniel to Danny Briere?

by Rob Vollman on Nov 21, 2011 10:20 AM EST up reply actions

They toggle a lot. I used to fix guys manually, but now I just have a file with a list of aliases.

by Hawerchuk on Nov 21, 2011 12:49 PM EST up reply actions

It took me a year

to figure out who the hell “Nisse Ekman” was…

Co-Manager at Arctic Ice Hockey

Want Jets historical stats, Gabe Desjardins metrics, Jets prospect scouting reports, player previews, and old school photos from the WHA days? Get your copy of the First Commemorative Maple Street Press Winnipeg Jets Annual for 2011-12 here.

by Bettman's Nightmare on Nov 21, 2011 4:08 PM EST up reply actions

hein? who dat?

by Hawerchuk on Nov 21, 2011 4:33 PM EST up reply actions

Nils Ekman

Apparently Nisse is a nickname for him…which makes it all the more confusing that they would use it. But they do.

Co-Manager at Arctic Ice Hockey

by Bettman's Nightmare on Nov 21, 2011 4:59 PM EST up reply actions

3. The official scorer forgets to put the goalie in for an entire period (happens a lot more in MSG than anywhere else)

Interesting. When I’m pulling data if I get the first two (the second is so annoying!) it pops up that there’s an error and I add the player/alias and all is well. I had been unaware of this, though, so I guess I’d been excluding a handful of periods because according to the roster there wasn’t a goalie so it assumed empty net and ignored it. How common is this?

Thanks for the heads up.

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by JaredL on Nov 22, 2011 3:21 AM EST up reply actions

The NHL has improved in this regard, so I’m guessing it’s now around 3-5% of all games. What I do is a check for total goalie TOI on each team – if the goalie is pulled for more than 3 minutes during the regular season, I assume the sheet is wrong and hand-edit it later. The way you’re doing it is actually problematic because the scorer usually does something like this:

GOALIE:
Period 1 0:00-20:00
Period 2 0:00-18:38
Period 3 19:36-20:00

And there’s no period 3. Except he meant to do:

GOALIE:
Period 1 0:00-20:00
Period 2 0:00-20:00
Period 3 0:00-18:38
Period 3 19:36-20:00

So they screwed up two periods for you.

It used to happen all the time, particularly for Rangers games.

by Hawerchuk on Nov 22, 2011 10:21 AM EST up reply actions

Thanks. I’ll have to go through and search out how many minutes I have with both goalies in for each game and fix the ones that are obviously short. This just goes right along with my theory that the Rangers ruin everything.

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by JaredL on Nov 22, 2011 1:48 PM EST up reply actions