Megalodan
Registered Loser
Basic facts:
There are several variations and interesting experiments that can be done with this stat, but my favorite is calculating how many games a team can expect to win with their 'goal ratio'.
If we assume that a team with a 1.00 ratio (exactly one goal scored for every goal allowed) will win exactly half of their games, then we can calculate the number of games a team should have won:
If you run that against the 2013 stats (as well as other seasons) you will get a table like the one below. The teams are ranked by the number of wins they had this season. The expected wins for each team is also calculated, and a second ranking is made based on this stat. A 'differential' indicates how many ranks a club 'unfairly' rose or fell from expectations. The numbers are hauntingly accurate.
Please leave any questions, comments, or criticisms for me. I've done this as a hobby for the last few seasons, and this is the first time I've wrote up anything about. Thanks for reading.
Rank
|
Team
|GP |
W
|L |OT |G/G |GA/G |Goals/GA|
Expected Wins
|
Exp. Rank
|
Rank. Diff
1|CHICAGO|48|36|7|5|3.1|2.02|1.534653465|36.83|1|0
2|PITTSBURGH|48|36|12|0|3.38|2.48|1.362903226|32.71|2|0
3|ANAHEIM|48|30|12|6|2.79|2.4|1.1625|27.90|6| 3
4|MONTREAL|48|29|14|5|3.04|2.58|1.178294574|28.28|4|0
5|ST LOUIS|48|29|17|2|2.58|2.38|1.084033613|26.02|12| 7
6|BOSTON|48|28|14|6|2.65|2.21|1.199095023|28.78|3| -3
7|LOS ANGELES|48|27|16|5|2.73|2.38|1.147058824|27.53|7|0
8|WASHINGTON|48|27|18|3|3.04|2.71|1.121771218|26.92|9| 1
9|VANCOUVER|48|26|15|7|2.54|2.4|1.058333333|25.40|13| 4
10|TORONTO|48|26|17|5|3.02|2.67|1.131086142|27.15|8| -2
11|NY RANGERS|48|26|18|4|2.62|2.25|1.164444444|27.95|5| -6
12|MINNESOTA|48|26|19|3|2.46|2.6|0.946153846|22.71|20| 8
13|SAN JOSE|48|25|16|7|2.42|2.33|1.038626609|24.93|14| 1
14|OTTAWA|48|25|17|6|2.33|2.08|1.120192308|26.88|10| -4
15|DETROIT|48|24|16|8|2.54|2.29|1.109170306|26.62|11| -4
16|COLUMBUS|48|24|17|7|2.4|2.4|1|24.00|15| -1
17|NY ISLANDERS|48|24|17|7|2.81|2.83|0.992932862|23.83|17|0
18|WINNIPEG|48|24|21|3|2.62|2.94|0.891156463|21.39|24| 6
19|PHILADELPHIA|48|23|22|3|2.75|2.9|0.948275862|22.76|19|0
20|DALLAS|48|22|22|4|2.67|2.94|0.908163265|21.80|22| 2
21|PHOENIX|48|21|18|9|2.52|2.6|0.969230769|23.26|18| -3
22|BUFFALO|48|21|21|6|2.46|2.9|0.848275862|20.36|25| 3
23|NEW JERSEY|48|19|19|10|2.29|2.54|0.901574803|21.64|23|0
24|EDMONTON|48|19|22|7|2.56|2.73|0.937728938|22.51|21| -3
25|CAROLINA|48|19|25|4|2.65|3.31|0.80060423|19.21|28| 3
26|CALGARY|48|19|25|4|2.67|3.27|0.816513761|19.60|27| 1
27|TAMPA BAY|48|18|26|4|3.06|3.06|1|24.00|16| -11
28|NASHVILLE|48|16|23|9|2.27|2.77|0.819494585|19.67|26| -2
29|COLORADO|48|16|25|7|2.38|3.12|0.762820513|18.31|29|0
30|FLORIDA|48|15|27|6|2.27|3.54|0.641242938|15.39|30|0
The clubs that are closer to a 1.00 goal ratio are more likely to rise/fall in the standings unfairly. I hypothesize that this fluctuation is based on the number of overtime games these clubs play, and their ability to take wins out of them.
- Hockey teams win games by outscoring their opponent; therefore, a simple indicator of a team's seasonal success is the number of goals scored against goals allowed.
- The NHL's 'goal differential' (goals scored - goals allowed) is misleading because it does not account for the quantities of each, only the difference between them.
- A better indicator is "Goals per Goals Against". This ratio indicates the ability of a team to outscore their opponent on any given night, by comparing goals scored directly to goals allowed.
There are several variations and interesting experiments that can be done with this stat, but my favorite is calculating how many games a team can expect to win with their 'goal ratio'.
If we assume that a team with a 1.00 ratio (exactly one goal scored for every goal allowed) will win exactly half of their games, then we can calculate the number of games a team should have won:
Code:
Expected Wins = [ ( Goals For per game) / (Goals Against per game) ] * (# of games in season / 2)
[I]note: whether you use "goals" or "goals per game" does not matter since they are (almost) the same and the denominators will cancel out[/I]
If you run that against the 2013 stats (as well as other seasons) you will get a table like the one below. The teams are ranked by the number of wins they had this season. The expected wins for each team is also calculated, and a second ranking is made based on this stat. A 'differential' indicates how many ranks a club 'unfairly' rose or fell from expectations. The numbers are hauntingly accurate.
Please leave any questions, comments, or criticisms for me. I've done this as a hobby for the last few seasons, and this is the first time I've wrote up anything about. Thanks for reading.
1|CHICAGO|48|36|7|5|3.1|2.02|1.534653465|36.83|1|0
2|PITTSBURGH|48|36|12|0|3.38|2.48|1.362903226|32.71|2|0
3|ANAHEIM|48|30|12|6|2.79|2.4|1.1625|27.90|6| 3
4|MONTREAL|48|29|14|5|3.04|2.58|1.178294574|28.28|4|0
5|ST LOUIS|48|29|17|2|2.58|2.38|1.084033613|26.02|12| 7
6|BOSTON|48|28|14|6|2.65|2.21|1.199095023|28.78|3| -3
7|LOS ANGELES|48|27|16|5|2.73|2.38|1.147058824|27.53|7|0
8|WASHINGTON|48|27|18|3|3.04|2.71|1.121771218|26.92|9| 1
9|VANCOUVER|48|26|15|7|2.54|2.4|1.058333333|25.40|13| 4
10|TORONTO|48|26|17|5|3.02|2.67|1.131086142|27.15|8| -2
11|NY RANGERS|48|26|18|4|2.62|2.25|1.164444444|27.95|5| -6
12|MINNESOTA|48|26|19|3|2.46|2.6|0.946153846|22.71|20| 8
13|SAN JOSE|48|25|16|7|2.42|2.33|1.038626609|24.93|14| 1
14|OTTAWA|48|25|17|6|2.33|2.08|1.120192308|26.88|10| -4
15|DETROIT|48|24|16|8|2.54|2.29|1.109170306|26.62|11| -4
16|COLUMBUS|48|24|17|7|2.4|2.4|1|24.00|15| -1
17|NY ISLANDERS|48|24|17|7|2.81|2.83|0.992932862|23.83|17|0
18|WINNIPEG|48|24|21|3|2.62|2.94|0.891156463|21.39|24| 6
19|PHILADELPHIA|48|23|22|3|2.75|2.9|0.948275862|22.76|19|0
20|DALLAS|48|22|22|4|2.67|2.94|0.908163265|21.80|22| 2
21|PHOENIX|48|21|18|9|2.52|2.6|0.969230769|23.26|18| -3
22|BUFFALO|48|21|21|6|2.46|2.9|0.848275862|20.36|25| 3
23|NEW JERSEY|48|19|19|10|2.29|2.54|0.901574803|21.64|23|0
24|EDMONTON|48|19|22|7|2.56|2.73|0.937728938|22.51|21| -3
25|CAROLINA|48|19|25|4|2.65|3.31|0.80060423|19.21|28| 3
26|CALGARY|48|19|25|4|2.67|3.27|0.816513761|19.60|27| 1
27|TAMPA BAY|48|18|26|4|3.06|3.06|1|24.00|16| -11
28|NASHVILLE|48|16|23|9|2.27|2.77|0.819494585|19.67|26| -2
29|COLORADO|48|16|25|7|2.38|3.12|0.762820513|18.31|29|0
30|FLORIDA|48|15|27|6|2.27|3.54|0.641242938|15.39|30|0
The clubs that are closer to a 1.00 goal ratio are more likely to rise/fall in the standings unfairly. I hypothesize that this fluctuation is based on the number of overtime games these clubs play, and their ability to take wins out of them.