Monday, September 13, 2010

What I'm Using: Individual Defensive Metrics

In case you missed it (or you're too lazy to scroll down), here is the post I did earlier on individual offensive metrics.

I'll keep rolling with the defensive side of things (blockquotes from Ken Pomeroy):

Offensive Rebounding Percentage (OReb%)
I know this is OFFENSIVE rebounding percentage, but I wanted to keep the rebounding stats together. Sue me.
I'll just let Ken Pomeroy do the describing again:
This is the percentage of possible offensive rebounds a player gets:

PlayerOR / [%Min * (Team OR + Opp. DR)]

The denominator is scaled based on the percentage of a team’s minutes played by the player. Anything over 10% is good.
Here's what we saw from the Knollcrest group last year:



No.PlayerOReb%
40Campbell0.132
50De Young0.104
52Mantel0.095
24Schnyders0.087
42Schuster0.087
22Snikkers0.067
20Rodts0.046
30Veltema0.043
14Haverdink0.043
4Powell0.020
10Salo0.010
12Waters0.000
32Capel0.000
44DeBoer0.000

Pomeroy tells us that 10% is 'good'. I'm not quite sure if he means good like adequate, or good like great. I'll split the difference and say he means something in the neighborhood of 'solid'. Either way, it looks like Paul Campbell had himself quite the year on the offensive glass. I came to really enjoy watching Paul play last year. At times he seemed timid (especially early in games), but when he played aggressively he showed us that his game was more than serviceable on the offensive end of the court.

Defensive Rebounding Percentage (DReb%)
It's the same as the offensive version above, but, you know, for defensive rebounds.
Pomeroy sets the 'good' benchmark at 20%. 

No.PlayerDReb%
50De Young0.244
52Mantel0.207
44DeBoer0.187
42Schuster0.158
20Rodts0.144
22Snikkers0.135
14Haverdink0.133
40Campbell0.124
32Capel0.108
4Powell0.107
30Veltema0.102
24Schnyders0.101
12Waters0.090
10Salo0.068

Adam De Young was good in mop-up time, but John Mantel was the main man on the glass (obviously). The Knights will need someone to step up to fill his shoes. Rebounding is one of my biggest concerns for this team heading into the 2010-11 season.

Block Percentage (%Blocks)




This is the percentage of opponents’ two-point shots that are blocked by the player while he is on the court... Anything greater than 8% is very good.


As with other stats I've shown, we're using %Min to approximate the number of opponents' two-point shots for each player.

No.Player%Blocks
42Schuster0.15
52Mantel0.08
40Campbell0.06
22Snikkers0.03
20Rodts0.02
24Schnyders0.01
30Veltema0.01
10Salo0.00
50De Young0.00
44DeBoer0.00
14Haverdink0.00
32Capel0.00
4Powell0.00
12Waters0.00

See that number for Brent Schuster? That number would have been good for the number three blockman in the country in Division I last year. I was ridiculed (by Hope fans, of course) on d3boards.com for suggesting that he might be the best shot blocker in the MIAA last year...

Steal Percentage (%Steals)
This one's pretty simple:
This is the percentage of possessions that a player records a steal while he is on the court. It is computed by Steals/(%Min * Team Possessions). Anything greater than 5% is very good.

No.Player%Steals
4Powell0.03
14Haverdink0.03
22Snikkers0.02
10Salo0.02
52Mantel0.02
20Rodts0.02
42Schuster0.01
30Veltema0.01
40Campbell0.01
24Schnyders0.01
50De Young0.00
44DeBoer0.00
32Capel0.00
12Waters0.00

Calvin didn't have anyone that was 'very good' at coming up with steals. I'm not too concerned about it though.
And that's really all I have in the way of individual defensive (and rebounding) metrics. To me, it's not as juicy as the offensive numbers, but that's OK. So much of what makes a player a good defender is nearly impossible to measure with numbers. I think the strength of a defense lies in the team, and we'll see those when I finish up the with team metrics.

No comments:

Post a Comment