Plus-Minus in 3v3: Which Trio Works Best

Teams of five play 3v3 with frequent subs, and an analyst tracks the plus-minus (points scored minus points allowed) of each trio on the court. It introduces the job of a sports data analyst and has teams pick lineups using data, not hunches.

How to play

1. Explain plus-minus: every time a team scores, add it to the players on court and subtract it from the opponents on court. Each team names an analyst who sits out that round (4 min).
2. Round one: half-court 3v3 games with trio changes every 2 minutes; the analyst logs which trio was on and the running score (10 min).
3. Team analysis: the analyst shows which trio has the best and worst plus-minus, and the team looks for reasons (size, defense, chemistry) (4 min).
4. Round two with data-driven lineups and a new analyst; see if results improve (10 min).
5. Wrap-up: limits of plus-minus (few minutes, different opponents) and other stats teams use (2 min).

Rules

• Adapted 3v3 rules: after a basket or defensive rebound, clear the ball beyond the arc before attacking.
• No hard contact on defense; respect fouls when called.
• Subs only at the set time and from the sideline.
• Talk about the data as a team: nobody is "the worst" because of a number.

Variations

Adaptations

• Limited mobility or injury: be the team's analyst for the whole session.
• Visually impaired students: analyst with a partner calling the baskets, or player in an adapted game with a sound ball.
• Deaf or hard-of-hearing students: subs are signaled by raising a colored pinnie.

Learning goals

• Record and interpret a game stat in real time.
• Make tactical decisions based on data.
• Learn about the sports analyst career path.

Equipment for a class of 25

• basketballs: 3
• pinnies: 15
• stat sheets: 12
• pencils: 6
• basketball hoops: 3

Teacher tip

Set up the sheet with columns for minute, trio and score so the math is almost automatic. The usual mistake is drawing conclusions from two minutes of play: have them name that limitation out loud.

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