Pitching success at a young age?
This year seems to be exceptional in terms of young pitchers breaking into the league and having a lot of success. Just look at Francisco Liriano, Justin Verlander, Matt Cain, Jonathan Papelbon, Joel Zumaya. The list could go on. But is it a really exceptional year?
I set out to look at the combined stats of pitchers by age over the last three years. 2006 stats are only through Sept 1. Kudos to ESPN’s excellent MLB stats page, which lets you break down the numbers in a lot of ways. Seeing as which league you pitch in makes a difference, I stuck to the AL pitchers only.
I had some problems with tables here, so I am simply linking the Excel file I made. See the trends for yourself. I also included a little tab for rookie performances over the past three years. Interesting.
There are a few surprising trends here. If you look at winning percentage, ERA and WHIP, it seems like the oldest pitchers do quite well. Here’s where selectiion makes a big difference. Those older pitchers are guys like Randy Johnson, Curt Schilling, Mike Mussina, etc. They are not average pitchers, but good enough to stick around that long. They throw the averages way off.
Young pitchers tend to strike out more batters, but walk more batters as well. They tend to not have as good winning percentages. There are a decent number of 22-year-olds who pitch in the bigs, but the ERA and other peripherals improve a lot soon after. A lot more 23- and 24-year-olds stick in the majors. So you might aim for your prospects hitting the majors around then. Of course, Verlander’s numbers throw off the performance of 22-year-olds this season, but as a group, they did not really outperform previous classes.
The pitchers with the most games started fall between the ages of 24 to 32, with a steep drop-off at age 33. So unless you’ve got a premium arm, you’d best think twice about signing a free agent like Matt Clement to be a starter. Not only that, but there’s a pretty steep dip in IP/G at age 29, suggesting that a lot of pitchers are beginning to become reliever material at that age. The workhorses of the league who log the most innings are young arms between the ages of 24 to 28. I wonder if pitch counts help the average starter to prolong his career beyond that.
The Atlanta Braves re-signed 37-year-old reliever Bob Wickman to a one year contract extension for $6.5 million yesterday. This is a lot of money for what Wickman is, but you can’t argue about what he’s done for them since coming over from Cleveland. This is a very good insurance policy for the Braves, but I wouldn’t expect Wickman to remain the closer for them at this time next season.
One of the few bright spots for the San Francisco Giants right now is the pitching of youngster Matt Cain. The Giants looked to the 21-year-old to blossom this year, and he certainly has. Over the past one month, his line looks something like this: 5-0, 42.0 IP, 43 K, 0.21 ERA and 0.81 WHIP. He’s given up ONE earned run over his last six appearances, five of which he’s gone at least seven innings. Now 13-9 on the year with a 3.75 ERA, the Giants should watch his pitch counts and slot him in as their number 1 pitcher next year. Keeper league owners, take note.
Travis Hafner has broken his right hand and will be out for the rest of the year. This comes at a very bad time for Hafner owners (like myself), as he was hitting extremely well in the past month.. I’m not even allowed to drop him in my Yahoo league!