replacement level Stories - Beyond the Box Score
What's the Point of "Replacement Player?"
Colin Wyers (BP) has a completely awesome piece today in which he reconstructs why we use Replacement Level Player, why it's better than just Average Player, redefining (and reconsidering) how Replacement Level is determined, and how BP is using that as a baseline from which to jump into...
Frequently Asked Questions #10: Wins Above Replacement
This is Part 10 in what I hope will be just a ten part series of answers to frequently asked questions about hockey analysis. Here are Part 1, Part 2, Part 3, Part 4, Part 5, Part 6, Part 7, Part 8 and Part 9. The "Holy Grail" in any kind of sports analysis is to figure out how many wins a player...
Replacement-Level Redux: Goals vs Wins
In the comments section for my previous post, Tom Tango pointed out that it would be interesting to see the breakdown of goals for and against when defensemen and forwards are missing from the lineup. For 2002-2008, we get the following: In In In Out Out Out +/- GF GA +/- GF GAD 2.22 2.816 2.788...
Replacement level: how many wins do injuries cost?
Replacement level can be a bit difficult to define in hockey. Unlike baseball, where Derek Jeter gets hurt and all his playing time goes to a guy who has yet to prove he can hit AAA pitching, an NHL player's minutes get spread around to other NHL players (aka his teammates) while he's hurt. So the...
Do Defensemen influence Save Percentage?
[Note: this methodology is similar to a previous analysis of replacement level: http://www.behindthenet.ca/blog/2008/04/replacement-level-how-many-wins-do.html. It is obvious that teams do worse when their top players are out of the lineup, but it's not clear what suffers.]In order to answer this...
Defenseman's impact on Offense
I might as well re-run the previous post on the offensive end of the ice: IN OUT GP G/GP S+G/GP SVPCT GP G/GP S+G/GP SVPCT DELTAN=28 Better +/- 1610 1.89 21.77 913.3 686 1.71 21.16 919.1 5.8N=25 Worse +/- 1229 1.81 21.76 916.9 821 1.81 21.32 914.9 -2.0Again, the "Better +/-" group had a significant...
Defenseman's Impact (cont'd...)
I was initially only going to look at the performance of replacement level defensemen to see if their inclusion in the lineup had any additional negative impact relative to that of losing a #1 or #2 defenseman. But I ended up pulling the "With or Without You" data for every defenseman over the last...
WAR Lords of the Diamond (Position Players)
In this new series of Purple Row Academy, I will step on the toes of both RMN and TOGB somewhat--in examining the concept of Wins Above Replacement (WAR)--also called Win Value--in detail, with a historical context slanted toward the best Rockies players as ranked by career WAR in future...
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