Duncan, By the Numbers
While I've been reading VEB for quite some time now, this is my first post, so hello to everyone!
I decided to take an in-depth look at how Chris Duncan has been hitting so far this season, to see if I could uncover anything that would explain his loss of power.
I was expecting to see a list of bad omens; surprisingly , the numbers are telling a good story about Duncan at the moment.
Lets start off with a primer:
Duncan was, in a the past, a huge power producer.
His Isolated power, or ISO(ISO = SLG-AVG)for '07 and '06, was .221 and .296, respectively. That includes his injury-riddled second half of last season; his ISO for the first half of '07 was .259. To put this in perspective, Pujols' ISO last season was .241, and David Ortiz's was .289. That's some lofty company. When Duncan is hitting, he hits for BIG TIME power.
Thus far into the season, his numbers are: .258/.375/.398, with an ISO of .140, which is slightly above Skip Schumaker-type power levels.
So, this tells us what we already know: he's not hitting for much power anymore. But is it just bad luck, or something else?
So far this season, he has an extremely high walk rate of 17.6%, well above his career average. He is also striking out a 19.4% clip, which is below his career average. This would lend to the belief that he is seeing the ball well.
His batting average on balls in play (BABIP) tells a lot of the story. It is currently .297; that would not be telling normally (since the ML average is usually around .300) but Duncan has a 24% line drive rate thus far in the season, which is very good. Since line drives go for hits more than any other type of batted ball, his BABIP should be sustainable around the .320 mark or so. (For comparison, Duncan has BABIP marks of .317 and .329, in the '06 and '07 seasons, respectively, with line drive rates of 20% both seasons.)
He is also elevating the ball at a normal rate, despite what our eyes are telling us; he currently has a groundball percentage of 42%, which is right in line with his career rate.
Basically, what all this tells me are 2 things: Duncan has hit into some bad luck so far, and he is due to a regression to the mean of his career (~.230 ISO) given the good peripheral stats.
Does this mean he will definitely go back to his former level? No. That hernia and the operation that followed could have done some serious damage to his swing; all I'm saying is, given the stats so far, there is a good chance he will go back to his former self. So everyone who is gung-ho about trading Duncan, hold off just a little while longer. Besides, why would we want to trade him in the absolute valley of his career? Makes no sense; we wouldn't get any return on him. Would be nice to get him off the field, though. The numbers aren't so kind to him there.
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I'll be there
with a friend, tis her birthday!!!
We’ll be in 591 row 11 aka pretty close to the party deck…
Ill try to grab kaz if i can. Is the bar close to the stadium, because i ride the metro over since i live on the IL side, and really dont want to walk a million feet.
check out VEB on facebook...just search groups for Viva El Birdos
by Dttl89 on
May 16, 2008 3:07 AM EDT
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Right by me
Although I won’t be there, I have season tickets 591, row 13. If you didn’t know already, row 11 is actually the first row in the section. You got pretty cool seats. Let the guys in the bullpen know it’s her birthday, they’ll likely throw her a ball.
by krueger427 on
May 16, 2008 1:09 PM EDT
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Even if Duncan returns to career norms
he still should be traded. It is good for the Cardinals and it is good for Chris. He needs to go to a team where he can play in a more natural position (1B or DH) and stop costing the Cardinals runs in the OF.
by Hardcore Legend on
May 16, 2008 3:14 AM EDT
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Good post
But I think the contingent of fans who think Duncan MUST GO NOW is pretty small. Let him start hitting again, the trade deadline is a long ways away. However, he DOES need to be traded, for the reasons that are obvious and stated a few hundred times a day—terrible defense, overcrowded OF, valuable lefty power bat, make room for Rasmus, and the whole bit.
by mojowo11 on
May 16, 2008 3:23 AM EDT
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It depends.
If Duncan really does go back to his previous levels of production, he is a very valuable player; I think his value is greatly underestimated at times. He has a .944 OPS against RHP in 536 AB….that kind of production considerable.
You will get no argument from me about his fielding; it is awful. If a suitable trade could be found where we get a piece of real value for Duncan, say a good young SS or 2B from an AL team, that would be fine. I just get tired of the hearing that we should basically dump him for pennies on the dollar.
by ViperLjs on
May 16, 2008 3:38 AM EDT
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regarding lil'dunc's defense
we’ve all seen him fall down after catching the ball, and we’ve seen the wacky “run to a nice green spot and then at the last second jump 3 feet in the air to catch a ball he misjudged” plays, and of course we all saw the game last week where he lost the popup in the lights and gave up a double (and an insurance run). The whole world saw him miss 2 or 3 balls in one game in the frigging world series. And the whole “close my eyes and catch it one-handed” thing is incredibly nerve-wracking. Anecdotally, he has seemed really bad on defense.
And by every analytical system out there, he was gawdawful in ‘06 and ‘07. Worse than Barry Bonds, by PMR, IIRC.
However, this year, so far, he hasn’t been that bad when looking at the various systems. by THT’s RZR, he’s been middle-of-the-pack; at .923 (36 of 39) w/9 ooz catches, he’s right up there with holliday and ethier and Bay (and ludwick?), and well above Schumaker (!!!). By the Bill James Online / Fielding Bible stats, he’s 45 for 45. By the more primitive B-R range factor per nine innings (RF9) stat, he’s well above average for a LF (2.44 for duncan vs 1.86 for the league). And by BP’s davenport translations, which have a bad rap but are at least one more data point, he’s been worth 2 fielding runs above average in LF.
Fellow geeks- is there anything I’m missing?
he had a groin injury last year, which may have made him look a lot worse than he was, and he’s been having a crisis of confidence, which makes him look really bad on TV. but it does seem like he catches the darn ball an awful lot of the time. At what point do we start ignoring our lying eyes, and reconsider our opinions about how bad Duncan is on defense? especially after all the extra bases the, ahem, guys who are in as defensive replacements seem to be giving up lately?
And I awoke in California, far far from Spancilhill...
by SleepyCA on
May 16, 2008 4:12 AM EDT
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The perception of Duncan's defense.
The problem Duncan has is that when he is bad, he is VERY BAD. In addition, he tends to make routine plays look VERY SCARY. This taints the perception of his defense. It is frustrating to watch him not shake off an error and put it behind him. His errors tend to come in bunches.
Truthfully, he doesn’t miss that many balls. He has better speed than you think because his legs are 8 ft long. It helps him get to balls other guys probably don’t. He seldom makes any catch look easy, so when he makes a diving catch you tend to write it off as a bad route to the ball. I think, objectively, the numbers are probably right. His positioning and routes are really bad; and, as you said, the “close-your-eyes-and-stick-up-the-glove” approach is really disconcerting. That said, it usually ends up in the glove.
by etp_stl on
May 16, 2008 8:15 AM EDT
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I think you are right
about this matter. Perception is part of the problem. Chris lumbers along and slams into walls and just looks bad, but he usually has the ball in his glove when he is done. Also, his misplays seem to come in bunches. When he is having a bad day with the glove, it is not just one incident, it is two or three. Those bad days stick in our minds and we tend to forget all the routine plays he made during other games. So we come to the conclusion that Duncan is bad at defense when numbers don’t necessarily support that.
by cardsgirl95 on
May 16, 2008 9:41 AM EDT
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Doesn't this mean
(w/o having the time to check the #’s) that his HR/FB is considerably lower than it’s been in the past? This could be attibutable to bad luck or possibly an injury that’s keeping his fly balls from flying as far. I’ve seen nothing to indicate injury so maybe his relative lack of power this year is resulting from simple bad luck.
That said, he also sees the most P/PA of anyone on the roster. Either Ricky Horton or Al the other day made the point that he seems to be taking a lot of good pitches to hit. If this is true, could it be plausible that he’s taking good pitches to hit and become a better 2 strike hitter than in the past? He’s trying harder not to strike out and, in doing so, has forgone some power? If true, I think we’d be better off w/ more HR’s and more K’s than a singles hitter who can’t play LF. Duncan only has value if he’s hitting for power.
by chuckb on
May 16, 2008 9:50 AM EDT
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Duncan's HR/FB
2006 - 29.3%
2007 - 21.0%
2008—13.8%
I don’t know why that is but therein lies the problem. Hopefully, it’s flukish and something that will, work its way back to the mean.
by chuckb on
May 16, 2008 10:54 AM EDT
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Given his line drive rate,
he’s hitting the ball squarely. I do wonder if he really did “shorten his swing” as we’ve been hearing, leading to a loss of the homerun power. I can’t imagine that his HR/FB would fall off that much that quickly without either a considerable change to his swing or a lingering injury. It seems as though it should be flukish.
by ViperLjs on
May 16, 2008 3:31 PM EDT
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the big spike
is in his infield fly ball rate. He had a very good IFFB rate in ‘06 and ‘07- 8% and 7.5%, respectively. This year he’s at 30.4%. He’s already hit more infield flies this year than he had in all of 2006.
When you remove infield flies from the equation, his HR/outfield fly ball rate is 19% vs 21% last year. It was 31% in 2006, which is incredible and probably not a sustainable number (albert’s best year was 26.3%).
And I awoke in California, far far from Spancilhill...
by SleepyCA on
May 16, 2008 4:03 PM EDT
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that 30% is a core sign of his issues.
It’s not strength per se, it’s just getting the bat head square on the ball.
He’s seeing the ball, he’s timing the ball when he swings, he’s just not getting the bat on it square. That’ll happen with more at bats, something that is kinda hard for him to get when teams are leveraging left handers against us at will.
I use statistics much as a drunken man uses lamp-posts – as support rather than illumination. - Andrew Lang
by AdjustedExpectations on
May 16, 2008 5:03 PM EDT
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duncan
can do some really weird things at times though, for instance in yesterday’s game on the HR that Bay hit against Izzy, Chris got back to the wall in plenty of time, only he was about 10 feet over from where the ball was. He tried to recover, stumbling along the wall, trying to get to the ball. Had he tracked the ball well, he possibly would have caught that ball because it seemed to just barely cleared the wall.
by ridgesee on
May 16, 2008 10:14 AM EDT
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Package Deal--Build the Farm System
It is clear that he is not going to perform better unless he gets the at bats. Today’s performance by Ryan shows that he should be in the lineup EVERY day. We are platooning 4-5 outfielders, this doesn’t make much sense when you have Skip, Rick and Ryan performing better than Duncan or Barton. Then we have the Colby Rasmus situation, whenever he is ready where does that put Duncan.
We are not going to get what we want outright for Reyes or Duncan, so we need to package them together for some solid prospects. We have to keep building the farm system and neither of these guys are going to help us this year.
by Numero Uno Birdos on
May 17, 2008 6:16 PM EDT
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on defense, he hustles and he cares
two very positive traits. But in the very good discussion above about his poor routes and his vertigo-esque body control, I don’t think anyone mentioned his arm.
Perhaps that was out of kindness.
No whip or power in his arm at all. Even for a left-fielder, he has a very weak wing. Adam Dunn may be as bad, or even a little worse, but I can’t think of anyone else who is {Bonds now ‘retired’}.
Lastly, his aforementioned hustle and caring stood out somewhat in ‘06 and ‘07, but this ‘08 bunch has THAT going for it across the board. And Dunc is not the fresh rookie anymore.
I like the kid, but for his sake and ours I hope he is traded.
by the Tewk on
May 18, 2008 1:24 AM EDT
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power hitting
We need to look back and see that the biggest liability of this team, other than its bullpen, is stranding runners. We already have terrific OBP. What we need is more consistent power production. Duncan, it is fair to say, has not supplied that so far this year.
However, we have to find out what his potential is. As well as Skip and Barton have played, neither of them have a 20, 30, 40 HR potential. Duncan may have that kind of power hitting. Maybe the guy never hits another HR in the majors—I don’t know. But we have to find out. We have a bunch of guys who can draw walks and hit singles on the team. If we spend money, it is likely to be to get a middle infielder, who will likely be another small ball type.
Pujols, Ludwick, Ankiel, and Glaus (intermittently) are not cutting it as our power hitters. Duncan has the capacity to do what Barton and Skip, as valuable and as talented as they are, don’t.
by tom s. on
May 18, 2008 6:50 PM EDT
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Here is why none of this matters, Duncan is not an OF'er.
He’s a DH or 1B. People keep waiting for his offense to make up for his errors, but errors demoralize your team and the pitcher and at the same time jump start the other team. Errors have a physiological impact far beyond the initial unearned run and go a long way to losing a ballgame, you’d have to hit an awful lot to make up for that.
by TheBirds on
May 19, 2008 3:57 PM EDT
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all 5 of his errors
Over the last two years.
by Evilfrog on
May 19, 2008 4:42 PM EDT
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lol
yeah, I want to see evidence of this “psychological” impact. I think it has the most impact on fans, not the players.
by spants on
May 19, 2008 5:40 PM EDT
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That manny ramirez guy sure has sent the Red Sox into a funk, hasn't he?
by tom s. on
May 19, 2008 6:09 PM EDT
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Completely
Boston would’ve won the World Series four more times without him!
by spants on
May 20, 2008 2:23 AM EDT
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So you are happy with his defense?
And are Manny and Chris Duncan really comparable, honestly….
by TheBirds on
May 20, 2008 6:39 PM EDT
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duncan is much, much better than Manny defensively.
And I awoke in California, far far from Spancilhill...
by SleepyCA on
May 20, 2008 7:31 PM EDT
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cursed blog controls
I didn’t say they were comparable. You said “none of this matters” which I took to mean that it doesn’t matter how many HR’s Dunc hits, his occasional error is vastly more important. I drew the Manny comparison, not because I think Dunc is the same kind of player, but to show that, yes, offensive production can make up for defensive snafus.
I think saying that a players offensive contribution does not matter at all is a bizarre statement and without any foundation.
by tom s. on
May 21, 2008 12:19 AM EDT
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Ohh, and about Duncan's high line drive percentage and low BABIP
This is probably due to the fact that Duncan basically can only pull the ball so it’s pretty easy set up your defense to defend him. What you see is what you are going to get I think, we are coming up on the 1 year anniversary since he was good and people still have faith in him.
Don’t bring up error totals and tell me he isn’t one of (if not the worst) outfielders in the NL, I watch enough games to know that about every 5 games hes starts he does something dumb in the field that may or may not be counted as an error.
Remember when he dived for a ball and didn’t get within 5 feet of it? Beautiful.
by TheBirds on
May 21, 2008 7:42 PM EDT
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May 25, 2008
Another classic example of why Duncan isn’t a real Ofer in spite of what you read from his numbers.
by TheBirds on
May 25, 2008 7:41 PM EDT
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Actually, the numbers reflect what happened yesterday.
His RZR fell to .923, now tied with andre ethier. He’s still caught the vast majority of balls hit in his direction.
"the hardest decision to make is to do nothing; there is a terrible temptation to interfere." -gen patton
by SleepyCA on
May 26, 2008 2:58 PM EDT
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