Air Density Report w/ @Syracuseeee – 8.28.17


In this article I will break down the top teams and players that are affected the most by VMI and ADI today.  Many of you might ask what is VMI and ADI is so below I have written a brief description of what they mean and how they affect baseball games.

Air Density Report w/ Cuse

Visual Memory Index aka VMI in baseball is used to track how players perform under different air density’s. The easiest way to explain this is that depending on the weather temperature, humidity, or air density the batters swing will be affected.  You might ask yourself how is that possible?  Have you ever tried to swing a bat in the winter compared to a humid summer day?  It’s not the same and VMI tracks each batters muscle memory to various weather conditions.  A batter’s muscle memory takes time to adjust to certain weather conditions.  When taking VMI into effect I avoid teams or players with a number less than -5 which simply can be explained as they haven’t been hitting pitches with the type of movement that they will face on that day.  As far as what’s good for teams or players, I try and target +5 or greater because they will be used to pitches with high movement and their Visual memory will be good.

Air Density Index aka ADI is very simple to explain.  It’s a scale that goes 0-100 and is affected by three things (Elevation, temperature, and Humidity).  The Air Density is important in baseball because it will let you know how much movement the baseball will have in that ballpark on that day.  The higher the ADI the more movement on the pitch.  Typical 60 is the number people use to decide if the pitcher’s movement will be good or bad.  The lower an ADI is from 60 the less movement the pitchers ball will have and the higher it is from 60 will show the increase in the pitcher’s ball movement to the batter’s eye.


Todays Top Pitchers per VMI/ADI

Aaron Nola- The conditions are right and the planets are aligned for this play today.  The Braves have the worst team VMI on the slate at -9.24 and the conditions in Philadelphia are prime for pitching.  The ADI tonight in Philly is 68.28 so expect Nola to do great against the Braves.

Max Scherzer –Mad Max is coming back from his injury so I expect the Nationals will be cautious with him so be careful.  The marlins have a team VMI of -5.45 today which indicates they will struggle vs. Mad Max the only question you need to ask yourself is if max can get value for his price tag.

Luis Severino – Severino is another great play for tonight in regards to VMI.  The Indians have a team VMI of -3.73 and have been striking out much more.  The Indians have struggled of late so I have interest in Severino tonight in GPP formats.


Top Teams to use for hitting per ADI/VMI

  • Det vs Col – Its Coors and both teams VMI’s are off the charts, Tigers are +21.45 and the Rockies are +16.90 so either one are in play today.


  • Kansas City Royals – The Royals get a nice juicy team VMI of +3.31 and the conditions in Kansas City tonight will be good for hitting with a ADI of 61.56. Kansas City will face off against Austin Pruitt who at best has been average so I have interest in some Royals tonight.


  • Oakland Athletics – The Athletics have a team VMI of +3.31 and profile well vs Andrew Heaney who hasn’t been good in the few MLB starts he has had.