Win rate is the share of opportunities that end in a closed-won outcome. It measures how well the selling system converts qualified demand into customers once a real opportunity exists.
The clean formula uses a closed cohort:
Win rate = closed-won opportunities ÷ (closed-won + closed-lost opportunities) x 100
MetricHQ documents the same construction: won divided by won plus lost. Everything that is still open stays out of the denominator until it closes. That single rule is where most win-rate reporting goes wrong.
Cohort versus open pipeline
Two honest methods exist, and they answer different questions:
- Closed cohort: take every opportunity that entered a defined stage in a
period, wait until the cohort resolves, then divide won by won plus lost. This is the stable, comparable version.
- Period-closed view: divide deals won this quarter by all deals that
closed this quarter, regardless of when they entered. Faster to read, but mixes cohorts of different ages and qualification standards.
Dividing current wins by all currently open opportunities is neither. It punishes a growing pipeline and flatters a stalling one.
The stage-entry definition
Win rate from first conversation and win rate from a qualified evaluation are different metrics. Pick one documented entry stage and hold it. Moving the entry gate later in the funnel raises the reported rate with zero change in selling performance. If the qualification definition changes, annotate the series and restart the baseline.
Also decide the basis:
- count-based: deals won ÷ deals closed;
- dollar-based: value won ÷ value closed.
Report both. A team can win 40% of deals and 15% of dollars when large deals keep dying.
A worked example
120 opportunities entered the qualified stage in Q1. Two quarters later the cohort has resolved to 30 won, 70 lost, and 20 still open.
Closed-cohort win rate so far: 30 ÷ (30 + 70) = 30%
The 20 open deals stay out of the math until they close. If those late resolvers skew toward losses, as old deals usually do, the final cohort rate will land below 30%. Dollar-based: if the 30 wins carry $900,000 of the cohort's $4,000,000 closed value, the dollar win rate is 22.5%.
Definition pitfalls
- counting open pipeline in the denominator;
- moving the stage-entry gate and calling the improvement a win;
- blending count and dollar versions in one trend line;
- reading a blended rate across segments where inbound wins at 45% and
outbound at 12%;
- excluding no-decision outcomes so the denominator only holds competitive
losses;
- letting reps mark dead deals as open forever, which quietly inflates the
reported rate.
Where win rate fits
Win rate is one of the four inputs to pipeline velocity and belongs in the Measurement pillar of the Tenbound Pipeline Architecture Standard.
Diagnose it by loss reason and by the stage where deals die. A low rate with losses at the qualified stage is a targeting problem. Losses at proposal are a message or proof problem. The rate tells you where to look, not what to fix.