What is Stamina?
Stamina is a reflection of the rate at which a player’s activity is declining throughout the game.
How do we calculate it?
We look at Max Efforts across the game’s time span and plot a curve to determine the change in their frequency and intensity. If your player’s Stamina Pattern is consistent throughout the whole game the Stamina will show as 100%. If your player stopped running altogether by the end of the game, the Stamina would show as 0%.
How can I coach with Stamina?
Stamina serves as an indicator for player patterns. Players that hover around 50-60% at the end of each half should probably work on their conditioning, or possibly be subbed out for fresher legs.How can I have a Stamina of 80% for the first half and 99% for the second half, but 49% for the game?
This is a great question! When we calculate Stamina for the 1st half, we don't look at data from the 2nd half at all, and the same goes for the 2nd half. So let's take an example.
A player starts off the game fresh at 100%. Over the course of the half, the amount of running that she is doing drops by 20%. The resulting Stamina number would be 80%.
The second half starts. Remember, we know nothing about the first half to calculate second half Stamina. She is consistent during the 2nd half, and the amount she is running only drops 1%. Stamina for the 2nd half would be 99%
But now let's look at the whole game. How does that 2nd half start compare to her first half start? Well, she's running 50% as much as she did at the beginning of the 1st half. So we're already starting at a 50% drop for the second half compared to the first. The subsequent 1% gives us 49% for the game which is the Stamina number you see for the full game.