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Probability and impact — Season 4 Rollout

As of 2026-07-01 · Project hub

Every open risk's probability and impact place it on the 5x5 probability/impact matrix below: each axis is banded very low to very high, and a risk's score is the product of its two band positions (1-25), read as low, moderate or high. Default bands: 1-4 is low, 5-12 is moderate, 13-25 is high.

Open risks1
Highest score5
Bandmoderate

Matrix

Probability by impact matrix: score, band and open risk count per cell
Probability \ Impactvery_lowlowmoderatehighvery_high
very_high5 (moderate) — 1 risk10 (moderate)15 (high)20 (high)25 (high)
high4 (low)8 (moderate)12 (moderate)16 (high)20 (high)
moderate3 (low)6 (moderate)9 (moderate)12 (moderate)15 (high)
low2 (low)4 (low)6 (moderate)8 (moderate)10 (moderate)
very_low1 (low)2 (low)3 (low)4 (low)5 (moderate)

Ranked risks

Open risks ranked by probability x impact score
RiskProbability bandImpact bandScoreBand
Lead editor turnover mid-seasonvery_highvery_low5moderate

Where this comes from

Technique: Risk Probability and Impact Assessment · PMBOK-6 process 11.3 (Perform Qualitative Risk Analysis).