Proposal win rate
The share of submitted proposals that convert. A useful number that hides the more important one — how many of the losses were predictable at intake.
Also called: RFP win rate, bid win rate, capture rate
Proposal win rate is the share of submitted proposals that convert to won business. Average sits near 45%, with top performers above 50% (Loopio, 2026).
It is one of the few benchmarks in this space with a credible source behind it, which is why it gets quoted. It is also frequently the wrong number to manage.
What it measures, and what it hides
Win rate is a ratio of two things you chose: what you submitted, and what you won. Both halves are moveable, and only one of them usually gets attention.
A team can lift its win rate meaningfully without improving a single response — by declining more of the deals it was never going to win. That is not gaming the metric; it is the metric working. But it means a rising win rate can indicate better qualification, better responses, an easier market, or a smaller sample, and the number alone cannot tell you which.
The reverse is also true. A team that responds to everything can be excellent at responding and still report a mediocre win rate, because the denominator is full of deals that were decided before the RFP was issued.
The number underneath it
At around 166 RFPs a year against a ~45% win rate, a typical team loses roughly ninety responses annually. The question worth asking is not how do we lift 45 to 50. It is: how many of those ninety were knowable at intake?
In my experience, at least a quarter. That is an estimate from running and auditing this work rather than a research finding — but a quarter of ninety is more than twenty serious responses a year, each consuming senior hours, that a governed bid/no-bid decision would have declined.
Those are not losses. They are volunteer work.
What to measure alongside it
- Share of pursuits declined at intake. If it is near zero, your win rate is a statement about your qualification, not your responses.
- Cost per response in senior hours, and whose hours. This is what a bad pursuit actually costs, and it appears on no report.
- Loss reasons that are actionable. Most loss fields offer price, timing, incumbent, no decision. Almost none offer we should never have bid — so the most common correctable pattern stays invisible.
- Response cycle time, separated into time waiting on the buyer and time waiting on you. Only one of those is yours to fix.
Win rate is a scoreboard. These are the instruments.
Deeper: You’re not bidding. You’re donating. · Bid/no-bid decision
Rob Roberts is the founder of Widenine Solutions. In B2B SaaS and life sciences since 2011, running Deal Desk and Sales Operations since 2018 — including a Deal Desk built from scratch governing a $25M+ pipeline, and a 2,000+ vetted Q&A library behind 5,000+ responses built and audited.