How Many Accelerators Should You Apply To? The Maths

Most founders apply to one or two accelerators — usually Y Combinator and one other — get rejected, and conclude they aren't ready. The maths says they just didn't apply to enough. This guide works through the numbers and gives a practical answer.

The lottery maths

Suppose you're a strong company with, honestly, a 3% chance at each of the top programs. Treating each application as roughly independent:

The formula is 1 − (1 − p)ⁿ, where p is your chance per program and n is the number of applications.

Now mix in programs where your fit is better and acceptance rates are higher — say 8%:

Real applications aren't fully independent — a company that's weak on paper will be weak everywhere — but the direction is clear. For most strong companies, the number of good applications matters more than any single one.

So how many should you apply to?

For most pre-seed and seed startups, 8 to 15 programs is a good target:

• 2–4 "reach" programs: the most selective and most valuable — Y Combinator, a16z speedrun, Sequoia Arc.
• 4–6 strong-fit programs: programs that match your sector or geography — a vertical Techstars program, Alchemist for enterprise, SOSV for hardware or biotech, Seedcamp in Europe.
• 2–5 high-probability programs: regional accelerators, grants and fellowships with higher acceptance rates.

See typical rates by program in our acceptance rates guide.

Why founders don't apply to more

Founders usually give three reasons:

1. "Each application takes days." The first one does. The rest reuse the same core material — one-liner, problem, traction, team, market — adapted to each form's questions and limits.
2. "I'll look desperate." Programs don't know or care where else you've applied, and many ask only so they can move fast if you have competing offers.
3. "I'll only apply where I'd definitely go." Fair — but you can decide later. Applying doesn't commit you to anything.

How to apply to ten programs without losing a month

1. Write your core material once. A one-liner (here's how), a problem statement, traction with numbers, a team paragraph, a competition paragraph and a market estimate.
2. Map each program's questions to that material. Most questions are variations on the same dozen themes. Every program page in our directory lists its questions and limits.
3. Adapt to each form's limits. Fifty characters at YC, 100 at speedrun, 280 at Alchemist. Cutting is most of the work.
4. Personalise the fit questions — "Why us?" — by hand.
5. Track deadlines and decisions in one place.

Applyseed automates steps 2 and 3: you build one profile from your deck or notes, and it drafts each program's answers within its limits. You review and submit each one yourself.

When applying widely is a mistake

• If your application is weak everywhere, sending more copies won't help. Fix the core material first — clarity, numbers, insight.
• If you can't attend, don't apply. Check location, dates and in-person requirements.
• If the terms don't work for you, read our deal terms guide before applying.

The bottom line

Accelerators are a numbers game played with good applications. Apply to 8–15 programs across reach, fit and high-probability tiers, reuse your core material, and you turn a 3% lottery ticket into a real chance.