Tables and Tools Down Until Further Notice

We moved our server and did a bunch of updates. In the process, our database is not working. Hopefully, it will be up soon, but it may be a while as the server move is happening at the same time as a physical relocation across states. The problem could be corrected tonight or next week or even later. I am just not going to put out any guarantees. I will let people know when it is back up and running.

Aging for Players from Curacao and Aruba

In a recent article by Peter Gammons, the learning curve from players from Curacao and Aruba were discussed.

Hensley Meulens is now a Giants coach. He was born in Curacao, got to the Yankees in his sixth professional season, and in the last two World Baseball Classics has been the coach of the Dutch team, heavily stocked with players from the two islands. He has coached in other world tournaments.

“It’s completely different for kids from Curacao and Aruba,” says Meulens. “As kids, they play ten or eleven little league games. Their high school seasons are very short. They play about 30 games in the summer, maybe 40 if they’re lucky.

“Compare that with the games kids in the States play as teenagers,” says Meulens. “These showcase kids, between high school and the circuits and the showcases play up to 100 games a year. Dominican and Venezuelan kids play games every day. You learn situations by playing games. It isn’t a classroom education. It’s not something you learn on a laptop, you learn by playing. A player going into the draft (think Dansby Swanson) plays hundreds of high school and summer league games, go to college and play on the highest level (SEC Tourney to the College World series), they play on Team USA (and The Cape)…and have no social adjustments.”

The article’s main point is in line with some thoughts I have had on the changing aging curve. It would be interesting to get a list of player who started full-time baseball later in life and how they age.

Batted Ball Tweets

Here are a couple of Tweets, one mine and one not, on the correct batted ball trajectories when hitting.


Use Ground Ball Rate to Determine When DIPS Breaksdown

I just had an article published at The Hardball Times where I suggested a ERA estimator with GB% included could be the best yet. Here is some additional work I did since then.

Image in first tweet for ease of viewing.

Kansas Jayhawk Community College Conference (KJCCC) Baseball Scout Day Results

A few weeks back, I spent a couple days at the Kansas JUCO scout days. The East Division teams went the first day with the West division teams going the next day. The conditions were a little extreme the first day with rain forcing the pitchers inside where they had to throw off artificial mounds and when the position players hit, they had a nice wind blowing out. The East players were able to hit a half dozen or so home runs over the CF fence while no one from the West did. Also, the West pitchers had more pitchers hitting 90 mph off the bullpen mounds, while the East squad had just a few. With those disclaimers out of the way, here are some of the players who caught my interest. These are not all my notes, so if you have any questions email me at wydiyd~hotmail~com or on Twitter @JeffWZimmerman



  • Beau Zeihen (Allen County), RHP, 6’4, 170: 84-85 mph, touched 89
  • Quinton Forrester (Cowley County) LHP, 6’9, 250: 87-89 mph (rumor to have hit 91), SL and CH in low 70’s
  • Keaton Graf (Johnson County), RHP, 6’1, 200: Touched 90-91, settled at 86-87, 82-83 mph CH, 69-72 mph CB
  • Tanner Strikbine (Neosho County), LHP, 6’2, 190: 87-89 with FB with four breaking balls
  • Nathan Stobel (Allen County), RHP, 6’2, 210: 85-88 mph with a mid 70’s breaking ball and low 70’s change
  • Jake Biller (Fort Scott), RHP, 5’10, 180: 85-86 mph
  • Drew Johnson (Neosho), RHP, 6’0, 180, 85-87 mph
  • Nick Nelson (Johnson), RHP, 6’3, 180: 85-88 mph
  • Juan Ramos (Coffeyville), RHP, 6’3, 215: 85-87 mph

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Young Pitchers Shut Down for 2015

Officially shut down

  • Joe Ross: Done starting, maybe a few innings out of the bullpen (9/9)
  • Zack Godley: Getting is heading to the bullpen. (9/10)
  • Adam Morgan: Shut down for rest (9/20)
  • Michael Lorenzen: Pitched last game (9/17)

Getting near

  • Raisel Iglesias: 109 innings in 2015 with limited action last season. (8/29)
  • Matt Harvey: Pretty much a circus (9/21)
  • Aaron Nola: May pitch more than 185 innings (9/16)
  • Chris Bassitt: Will make one more start (9/14)

Probably not this season

  • Carlos Rodon: The team will probably not shut him down. (8/29)
  • Michael Wacha: Going to miss some starts (9/2)

Sprinter Aging Curve

I found this sprinter aging curve with the peak age between 24 and 25-years-old.


I mainly want to keep this iamge for future reference, but it does match up with a previous stolen base aging curve I found.



 I mainly want to keep this for future reference, but it does match up with the 

Reports From Day 1 of KJCCC Tournament

On this past Friday, I was able to attend the four games of the Jawhawk Conference’s (Region VI) Junior College Baseball Championship. Here are my thoughts on some of the players I saw.
Note: For the stats on any player, go to the Leaders stats page for the KJCCC and then click on the player’s Team at the bottom right.



Chad Thomas – Fresh, 5’8”, 175 lbs, RH
He threw side arm at an all right-handed Steward County lineup and ate them up. His fastball was at 82-84 mph with a 72-74 mph curve. He only allowed two runs and struggled the fourth time through the lineup. I expected him to have problems the 2nd time, but he was able to keep Steward’s lineup guessing.

Lucas Milner – Fresh, 5’11”, 180 lbs, RH
His delivery was unique. He looked like it was going to have submarine style release, but then flicked the ball across the plate with only his wrist and elbow. His fastball was 78-79 mph and he showed a change.

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Is Sliding Head First Faster? (via Tweets)

Yesterday, Norberto Rivas at baseballciencia explained via video and words why sliding head first is faster into first base. Here is the explanation in tweets. I figured I would put the relevant information all in one place for future reference.