Metrics - Explaining Fair Game Time

What is 'Fair Game Time'?

Fair Game Time is a metric which summarises a team’s performance of providing equal game time to each player. It accounts for fringe cases, whereby a player may be injured or playing for the opposition.

How is Fair Game Time calculated?

Rookie Me Play breaks game time up into seven possible categories:

• Field.
• Bench.
• Injury.
• Assessment.
• Disciplinary.
• Opposition.
• Absent.

1. First, we calculate percent game time for each player:

• Percent game time is the total time spent by a player on the field (plus any time played for the opposition), divided by the total available time for that player during an individual match.
• NOTE: Total available time does NOT include the time a player spends in the time buckets for absent, injured, assessment or disciplinary.

2. Next, we remove any occasions where a player has zero percent game time, as this is deemed to be an error by the user.
3. We then calculate a mean percent game time for the current match.
4. For fair game time, we calculate as shown in the diagram below:

5. For each player, we provide a weighted fair game time score based on the player being a customisable percentage away from the mean percent game time value.

The weighted fair game time scores are based on:

• 0% to +/- 7.5% from the mean is a score of 5 points per player.
• +/- 7.5% to +/- 12.5% from the mean is a score of 3 points per player.
• +/- 12.5% to +/- 17.5% from the mean is a score of 1 point per player.
• +/- 17.5% to +/- 22.5% from the mean is a score of 0.5 points per player.
• > +/- 22.5% from the mean is a score of 0 points per player.

6. Once all fair game time points have been attributed to each player, we then add all scores together and divide by the total number of players with greater than 0% percent game time.
7. The final result is presented as a percentage, with 100% being the best possible score and 0% is theoretically the worst fair game time score.