What is the Performance Indicator?
6-8 has created water polo’s first plus-minus: the 6-8 PI: a metric to help individual athletes determine their value in a game, regardless of how the team performs overall.
The PI is a weighted formula of stats that accumulates everything you did during a game — both positive contributions (goals, assists, blocks, steals) minus negative ones (turnovers, exclusions, penalties).
Ranges are regularly updated based on worldwide trends. Note: 2M defenders typically have lower averages than attackers — defenders should consider “average” scores as above-average performances.
The Formula
How the PI Works
Positive Actions
Goals, assists, steals, blocks, earned ejections — all weighted by importance based on college coach input.
Negative Actions
Turnovers, exclusions, penalty fouls, missed shots — weighted to reflect their impact on game outcomes.
Weighted Formula
Goals, assists, steals, blocks, earned ejections — all weighted by importance based on college coach input.
Your PI Score
The final +/- number shows your individual impact on the game, regardless of team outcome.
Access
Where to Access Your PI
Mobile App
View individual game PIs in the 6-8 mobile app under the “Games” section, filtered by athlete. See your average PI on your profile homepage.
PI Match Up
Compare your PI against other athletes via the “PI Match Up” feature in the Activities section of the app.
Scoreboard
View PIs for all global athletes during live games on the 6-8 Scoreboard.
Dashboard
Access PI data and analytics through the 6-8 Dashboard for in-depth performance tracking and reporting.
Frequently Asked Questions
The PI is an accumulation of everything you did during the game, both positive and negative. Review your contributions beyond obvious scoring — a player might accumulate many goals but negatively influence games through other actions, or vice versa. Check out the color-coded guide at the top of this page for PI ranges you can use for comparison.
It measures your individual performance and reveals areas for improvement. Unlike team-dependent stats, the 6-8 PI helps you understand what you did right or wrong regardless of whether your team won or lost.
The specific formula is not publicly available as it evolves continuously based on global data collection and trends.
Analysis shows that 2M defenders tend to have a lower average PI than attackers. Defenders should benchmark against position-specific ranges rather than overall averages.
Those combine multiple tournament games — results are added together across all games in a tournament, not individual game scores.
Focus on defensive fundamentals for steals and blocks, minimize turnovers from rushed passes, reduce penalty fouls, and develop aggressive offensive confidence. The 6-8 Academy and Challenge programs are designed to help improve these areas.