The data shows something different than I expected: In NCAAW Division 1, the data on 1,810 three-point attempts, shows overwhelmingly that in the first quarter of games, if the barometric pressure changes upward (requiring additional thrust) 3-point shooters adjust more quickly than if the pressure changes downward (allowing lesser thrust). This is opposite what I anticipated.
However, in quarters two, three and four of games, an upward pressure change from previous quarters and half-time shoot-arounds, is more difficult to accurately adjust than are the downward pressure changes which allow the player to relax a little on longer shots.
We are not tracking the tiny ups and downs of the air pressure, but the exposure of the players to the big ones as they travel to different arenas. BasketballVMI provides you with a daily index a day or more ahead of game-time so that you can identify performance issues for teams and individuals in advance. The "Team VMI's" listed within our reports identify changes in the shooters' "feel" to launch a basketball the precise distance to make the shot. See https://www.noahbasketball.com/ for analysis of the "perfect shot."
If a perimeter shooter misses, or makes more shots than normal for him, the rebounders from both teams will be affected by greater or fewer opportunities to increase their scores, as well.
By adding our index to your formulas, you will soon be able to identify certain teams, players and VMI's that give you an advantage no one else has.
We are studying these smaller incremental changes of pressure that occur during games. These barometric pressure "ups and downs" may seem small to the public, but they are a common cause of pain in joints, headache triggers, bladder, stomach and bowel expansion issues. We are studying these hourly occurances in terms of how much of an effect they may have on the air and therefore shooting adjustments.
As of January 2025, we have enough data to verify that when more thrust is required there is a substantial drop-off in shooting percentage accuracy and when lesser thrust is required, there is a lesser degree of drop-off. Our study is a quarter-by-quarter during game NBA and DIV 1 college shooting percentage compared to the previous quarter percentage based on the barometric pressure differences. *see article by Clifton Neeley 2024-12-04 "BAROMETRIC PRESSURE'S IMPACT ON SPORTS AND MEDICINE...3,082 Views per month.........
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A minus index number such as minus 2.5 means the perimeter shooters on this team will tend to shoot a little short in today's game. A larger index number, such as a minus 10.25 means a shot will tend to be shorter yet.
A plus index number, such as a plus 5.0 means the perimeter shooters on this team will tend to shoot long in today's game. A larger index number, such as a plus 15.0 means a perimeter shot will tend to be longer yet.
The VMI Power Index is built from games performed within today's unique VMI Range for both the home team and the visiting team. Games played within other VMI Ranges are eliminated from the power indicators, so you see the historical results from only those games played within today's VMI Range of +/-5.99. You will be able to view both the VMI Index and the Power Index on all the game match-up displays. Both will be visible in parentheses following the team name.
