Know why you're winning. And why you're not.

What is the UK average public sector bid win rate?

Approximately 22%. BidWriter users average 34% - a 12 percentage point improvement.

How does loss analysis work?

Debrief scores from lost bids are mapped back to your response sections, showing exactly which criteria you lost marks on and by how much.

How quickly does win rate improve?

Most users see meaningful improvement within 3-6 months as loss analysis findings are applied to bid writing.

What win rate actually measures

Win rate is the proportion of submitted bids that result in an award to you. It sounds simple, but the number is only useful if you define the denominator honestly. Count every submission, including the ones abandoned at selection stage and the ones disqualified on a technicality. Suppliers who quietly exclude their embarrassments end up with a flattering figure that tells them nothing about where to intervene.

Track win rate by value as well as by count. Winning nine small call offs and losing one large open competition looks excellent by count and may be a poor year commercially. A supplier with a thirty per cent win rate on well qualified opportunities is in a far stronger position than one with the same rate spread thinly across everything published, because the first has a repeatable model and the second has luck.

The most useful companion metric is cost per bid. Work out roughly what a submission costs you in time from bid writers, subject matter experts, finance and directors, then multiply by the number of bids you lose. That figure is the real argument for qualification discipline, and it is usually the number that persuades a leadership team to stop chasing volume.

Why bid count is the wrong target

Setting a target of a fixed number of bids per month guarantees that people will submit weak ones to hit it. Volume targets also degrade the bids you should have won, because the same small group of experts is spread across more documents, and quality responses become recycled rather than written to the question. The visible symptom is a rising number of scores in the middle band: not failing, not winning.

Public evaluation punishes generic writing more than most commercial sales processes do. An evaluator scores what is on the page against a published rubric and has to record a rationale that survives moderation. A hurried answer that describes your service rather than answering the question will land a middling mark, and middling marks lose to specific, evidenced answers almost every time.

The better target is a qualification threshold and a submission standard. Decide what score you need to be competitive with a given buyer, decide what internal review a bid must pass before it goes out, and accept that some months you will submit two bids rather than six. Pipeline health should be judged on qualified opportunities and conversion, not on activity.

The real reasons bids lose

In practice the losses cluster into a small number of causes, and they are diagnosable if you keep records. Poor qualification is the largest: the opportunity was never winnable because an incumbent was performing well, the requirement was shaped around a competitor, or the conditions of participation were beyond you. No amount of writing quality rescues that, and the effort would have been better spent elsewhere.

Next comes absence of differentiation. If your answer could be signed by three other suppliers without alteration, it will score the same as theirs and the decision falls to price. Then unevidenced answers: claims of experience, method or outcome with nothing specific behind them. Then price that is not defensible, meaning a number you cannot explain from a cost model when challenged.

Finally, compliance failures. Late submission, exceeded word counts, missing mandatory documents, an unsigned form, a pricing schedule completed in the wrong format, a failure to answer a pass or fail question. These are the most painful losses because the bid was often good. They are also the easiest to eliminate, with a compliance checklist owned by someone who is not the author.

• Poor qualification: the competition was never realistically winnable
• No differentiation: an answer any competitor could have written
• Unevidenced claims: assertions with no method, data or reference behind them
• Undefensible price: a number that cannot be traced to a cost model
• Compliance failure: deadlines, word counts, formats and mandatory documents

Qualification discipline is the biggest lever

If you change one thing, change how you decide what to bid for. A structured gate takes half an hour, scores an opportunity against a short set of honest questions, and produces a decision that a director signs. The value is not the scoring model, it is the requirement to write down why you think you will win before you commit anyone's time. Vague answers at that point are the tell.

Read the selection stage before you read the specification. Turnover thresholds, insurance levels, required accreditations, minimum contract experience and technical requirements are absolute. If you cannot evidence them today, the exciting specification is irrelevant. Suppliers routinely spend two weeks on a quality response before discovering they fail a mandatory condition, which is a self inflicted loss recorded in the win rate.

Keep a no bid log alongside your bid log. Record what you declined and why. Over a year it shows patterns: a buyer type you keep failing to qualify for, a recurring accreditation gap, a category where your price is never close. Those patterns are a capability plan, and they usually cost less to fix than another year of losing bids.

Dynamic Markets: repeated competitions that let you improve faster

The Procurement Act replaced the Dynamic Purchasing System with Dynamic Markets, and replaced utilities qualification systems with utilities dynamic markets. For a supplier trying to lift win rate, the design of these markets matters more than the name. A Dynamic Market is permanently open, so there is no deadline to miss, and membership cannot be capped, so you are not competing for a place with a fixed number of slots.

You apply once against the market's conditions for membership and stay eligible. Applications must be assessed within a reasonable time, and if your application is pending while a competition is running, it must be considered before that competition concludes. That removes the old and expensive problem of watching relevant work go out to a closed pool because you arrived a month after a window shut.

The win rate argument is about repetition. A one off open tender gives you a single data point, months apart, against an unknown field. A Dynamic Market gives you repeated call off competitions with the same buyer, the same evaluators, similar question sets and often the same competitors. You can test a pricing approach, refine a method statement, learn how strictly word counts are applied, and see the effect within weeks rather than years.

Fees differ by sector. Utilities in water, energy and transport may charge suppliers membership and award fees, and may run member only tenders, which can be an advantage if you are a member and a closed door if you are not. General contracting authorities may not charge membership fees. Keep your membership record current, because expired insurance or a lapsed accreditation is a routine and avoidable reason to be excluded from a call off.

Standstill, feedback and what a debrief will not tell you

When the award decision is made you receive an assessment summary and a standstill period runs before the contract can be entered into. Read it the same day, calmly, against the published evaluation criteria. Identify whether you lost on price, on a specific quality question, or on an interpretation of the rubric you can correct. Ask for further feedback promptly and in writing, referencing the criteria rather than expressing displeasure.

A debrief should tell you your scores against each criterion, the rationale recorded by the evaluators, and in most cases the winning tender's scores and the characteristics and relative advantages of the successful bid. That is genuinely enough to work with. It tells you which questions carry the marks with this buyer and how demanding their scoring standard is in practice.

A debrief will not give you the winning bid, the competitor's commercial detail, evaluator notes verbatim, or an admission that the process favoured an incumbent. It will not rescore you because you disagree. Challenge exists for genuine procedural breach, not for disappointment, and pursuing one has a commercial cost with a buyer you may want to work with. Treat the debrief as intelligence and move on quickly.

Tracking scores against competitors over time

Keep a simple record of every competition: the buyer, the category, the criteria weightings, your score per question, the winner's score where disclosed, your price, the winning price where published, and the reason you believe you lost. Contract award and contract details notices give you more of this than most suppliers ever collect. After a dozen entries, the picture stops being anecdotal.

Two comparisons are especially useful. First, your quality score against the winner: if you are consistently within a few marks, your writing is fine and the gap is commercial. If you are twenty marks behind, no pricing change will save you. Second, your score for the same question type across different buyers: a question you always score badly on is a content gap you can fix once and reuse.

Our sister platform WinAContract offers free UK tender search across published notices, which makes assembling award history less laborious. Whatever the source, the discipline is the same: one record per bid, updated at the point of decision while the detail is fresh, reviewed quarterly by whoever decides what you bid for next.

Pricing discipline under the most advantageous tender

Award is made on the basis of the most advantageous tender, which signals that buyers are expected to weigh quality, social value, life cycle cost and delivery risk rather than default to the lowest number. The practical effect is that the cheapest bid frequently loses. A price well below the field also invites doubt about whether you have understood the requirement, and abnormally low tenders can be questioned directly.

Understand the pricing model before you set a price. Most public competitions normalise price into a formula, and the shape of that formula determines how much a discount is actually worth in marks. Work out what a given reduction buys you in points, then compare it to the margin you surrender. Very often a five per cent cut buys a fraction of a mark and hands away the delivery contingency you will need.

Defensible means traceable. Every rate should come from a cost model with stated assumptions about volumes, staffing, inflation and risk. That protects you at clarification stage, protects you in contract negotiation, and stops you agreeing to something the delivery team cannot honour. Where a whole life or total cost approach is used, show the assumptions clearly so an evaluator can follow the logic without guessing.

Incumbency: beating it and defending it

An incumbent with a solid delivery record and a reasonably content buyer will usually win, and challenging that is expensive. Look for the signals that the position has weakened: a materially rewritten specification, a shortened term, new or tightened KPIs, a single contract split into lots, a change of senior responsible owner, or genuine preliminary market engagement that invites alternatives. Those competitions justify a serious bid.

When you do challenge, do not simply promise to be cheaper and better. Address the risk the buyer feels about changing supplier, because that risk is what protects the incumbent. Set out mobilisation in detail, name the transition activities and who owns them, describe how continuity is maintained, and reference comparable transitions you have run. Reducing perceived risk moves more marks than criticising the current provider, which reads badly.

If you are the incumbent, your defence starts on day one of delivery, not at retender. Performance is monitored against KPIs and information is published, so a clean record is visible evidence. Keep quantified outcomes, savings, service improvements and social value delivery recorded as you go, and never assume the evaluation panel knows what you have done. Write the retender as if the buyer knows nothing about you.

Reusable evidence, references and honest pipeline reporting

Most losing answers fail on evidence rather than argument. Build a maintained library of the things you are asked for repeatedly: case examples with quantified outcomes, named methodologies, policies, accreditations, insurance certificates, financial statements, modern slavery and environmental statements, social value delivery records, and referees who have agreed in advance to be contacted. Give each item an owner and a review date and treat it as infrastructure.

References carry disproportionate weight because they are the one part of your bid a buyer can verify independently. Ask permission before naming anyone, brief them on what the contract involves, and keep the relationship warm. Two strong recent references in a comparable category will do more for your win rate than a longer list of stale ones from work nobody involved still remembers.

Finally, report the pipeline by stage and be honest about it: identified, qualified, in progress, submitted, awarded, lost. Ageing matters, because opportunities sitting in qualified for months are usually dead. If bid writing capacity rather than capability is your constraint, our sister product BidWriter provides AI assisted bid writing built around UK public sector question types and evaluation rubrics, but no tool substitutes for the decision about what not to bid for.