Stephon Marbury

Impact Contribution Share during the Regular Season. This metric measures the percentage of a team's success that can be attributed to a specific player's performance in regular season games. ICS was formerly known as PCP (Player Contribution Percentage).

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Impact Contribution Share during the Postseason. Similar to Regular Season ICS, but focuses on playoff games where performance often has higher stakes and greater impact on championship outcomes. ICS was formerly known as PCP (Player Contribution Percentage).

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ISR takes a player's ICS and scales it by how much their team won. A player who contributed 18% of impact on a 60-win team is worth more than 18% on a 25-win team. Think of it as impact that actually translated to winning.

rs_ISR — regular season win% as the team success multiplier.
ps_ISR — playoff success (TPS) as the multiplier, rewarding players who perform when it matters most.