How to calculate win rate by stage
Win rate by stage tells you how likely a deal is to close from each point in the pipeline. It is the empirical basis for the win probabilities used in weighted pipeline and forecasting.
Rather than assigning arbitrary stage probabilities, measuring win rate by stage from your own history grounds the forecast in reality, so a deal in negotiation carries a probability you actually earned.
- Won / reached stage The formula
- Rises by stage Later stages win more
- Powers forecasting Real stage probabilities
Short answer
Win rate by stage is the probability a deal closes won once it reaches a given stage. For each stage, divide the number of deals that reached that stage and eventually won by the total number that reached it. If 30 of 100 deals that hit proposal eventually won, the proposal-stage win rate is 30 percent. These rates power stage-based forecasting.
Step by step
Take deals that reached each stage
For each stage, count all deals that reached it over a historical period, whether they later won or lost.
Count how many won
Of the deals that reached each stage, count how many eventually closed won.
Divide won by reached
Win rate by stage equals deals won divided by deals that reached the stage, times 100. The rate should rise at later stages.
Use it as stage probability
Apply each stage's historical win rate as the win probability for weighting pipeline and building the forecast, replacing arbitrary defaults.
Worked example
Historically, of deals that reached discovery, 20 percent won; of those that reached proposal, 35 percent won; and of those that reached negotiation, 60 percent won. These are your stage win rates.
Now a deal in negotiation carries a 60 percent win probability grounded in real history, not a guess. Applying these rates to open deals produces a weighted pipeline and forecast far more accurate than arbitrary stage defaults.
How Ardovo handles it
Ardovo calculates win rate by stage from your closed-deal history and uses it as the default stage probability for weighting and forecasting. Rook refines it with deal-level signals, so probabilities reflect both stage and real engagement.
Frequently asked questions
What is the win rate by stage formula?
For each stage, deals that reached the stage and eventually won divided by all deals that reached it, times 100. The rate rises at later stages and provides empirical win probabilities for forecasting.
Why measure win rate by stage?
Because it grounds forecast probabilities in your real history instead of arbitrary defaults. A deal in negotiation carries the win rate you actually earned from that stage, making weighted pipeline and forecasts far more accurate.
Should stage win rates increase at later stages?
Yes. Deals that advance have passed more qualification and buyer commitment, so later stages should show higher win rates. If an early stage wins more than a later one, your stage definitions or data likely need review.