When I started the LacrosseReference project, I was primarily taking concepts from other sports and applying them to college lacrosse. Possession-based efficiencies, time-of-possession, and shooting percentages were all examples. Nothing that your average sports fan wouldn't be aware of from other sports or even from a perusal of the NCAA stats site.
But as the site has grown in complexity and with the introduction of LacrosseReference PRO, the time has come to have a one-stop shop to aggregate the basic information that a fan or a coach would need to navigate the LacrosseReference suite of statistics. So here it is, LacrosseReference Stats 101.
The goal here is to give you a few things with every stat. First, a snapshot of who is the current "best" team or player in each category. Second, a sense of what sort of range is normal. The 'Range' column in the tables below show the 25th and 75th percentiles (so the range of values that encompass half the teams or qualifying players). Lastly, click on the plus icon to expand the row and get a full explanation of each statistic.
Statistic
Median
Range
Leader
Efficiency
29.4%
26.1 - 32.3%
GB Rate
49.9%
47.3 - 52.4%
Shooting Pct
42.8%
40.0 - 46.2%
TO Rate
28.5%
25.0 - 32.1%
Assist Rate
41.5%
35.8 - 46.1%
Expected Shot%
42.8%
40.4 - 45.0%
Elo Rating
1563
1288 - 1805
Pace
41.7
39.9 - 44.8
Poss Margin/gm
0.1
-3.3 to +2.7
Assist:Turnover
0.32
0.25 - 0.42
When looking at a statistic ranking individual players, it's important to consider minimum participation thresholds. Many of my stats make no sense when you are talking about very low-usage players. An stat, for example, that adjusts a cumulative stat to account for playing time can be really distorted by low-usage players. As a result, several of the individual player stats come with a minimum threshold to qualify for the ranking. This is also in effect when calculating the range of each stat.
Statistic
Median
Range
Leader
Shooting Pct
42.9%
35.7 - 50.0%
TO Rate
49.6%
33.4 - 68.1%
EGA / Gm
0.68
0.15 - 1.59
Assist:Turnover
0.17
N/A
Devittes
-1
-4 to +8
Excess Goals/Shot
-0.098
-0.163 - -0.036
Share Adj. Assist %
0.40
0.30 - 0.57
Share of Assists
5.1%
2.2 - 11.6%
Usage Adjusted EGA
0.76
0.17 - 1.28
Statistic
Median
Range
Leader
Efficiency
27.3%
23.9 - 31.2%
GB Rate
49.2%
47.8 - 51.8%
Shooting Pct
28.6%
25.2 - 30.4%
TO Rate
33.8%
29.6 - 37.1%
Assist Rate
56.3%
52.9 - 60.0%
Expected Shot%
28.8%
27.3 - 30.3%
Elo Rating
1563
1416 - 1667
Pace
42.5
40.4 - 44.3
Poss Margin/gm
-0.1
-3.5 to +3.2
Assist:Turnover
0.40
0.32 - 0.51
When looking at a statistic ranking individual players, it's important to consider minimum participation thresholds. Many of my stats make no sense when you are talking about very low-usage players. An stat, for example, that adjusts a cumulative stat to account for playing time can be really distorted by low-usage players. As a result, several of the individual player stats come with a minimum threshold to qualify for the ranking. This is also in effect when calculating the range of each stat.
Statistic
Median
Range
Leader
Shooting Pct
28.1%
21.6 - 34.6%
TO Rate
49.5%
31.6 - 70.3%
EGA / Gm
0.92
0.49 - 1.72
Assist:Turnover
0.29
0.14 - 0.67
Devittes
0
-3 to +7
Excess Goals/Shot
-0.112
-0.169 - -0.058
Share Adj. Assist %
0.53
0.46 - 0.59
Share of Assists
3.5%
1.6 - 8.1%
Usage Adjusted EGA
1.22
0.82 - 1.74
I hope this repository is helpful for both statistically-inclined fans and those just starting to incorporate statistics into their coaching arsenal.
If you think any of these stats could use a bit more explanation or (and this would be great) if you think there's a statistical concept that I'm missing, don't hesitate to reach out.
And if you haven't already, think about adding your email to my mailing list. I use it to introduce new concepts, riff on upcoming analyses and generally keep subscribers abreast of what's going on in the statistical world of college lacrosse.