How to play Runway Rush
You get ten short calculations a founder meets every month: runway, burn, valuation, dilution, payback and break-even. Each has four possible answers. The working is shown after every question.A correct answer scores 10 XP, a perfect run adds 20, and each wrong answer costs a heart.
The formulas worth knowing by heart
- Net burn is monthly costs minus monthly revenue.
- Runway is cash divided by net burn.
- Post-money valuation is pre-money plus the new investment. The investor’s share is the investment divided by post-money.
- Dilution multiplies your stake by one minus the share sold.
- Payback period is acquisition cost divided by monthly gross margin per customer.
- Burn multiple is net burn divided by net new annual recurring revenue.
Why speed matters
Investors ask these questions in the room, and the answer shapes the next ten minutes of the conversation. More important, a founder who knows the runway to the month will start fundraising or cutting costs in time. Most startups that run out of money saw it coming late.
Use the startup runway calculator for your own numbers, and see the startup guides for fundraising and unit economics.
Startup guides
Anthropic’s IPO Filing Explained: Revenue, Losses, Governance and What It Means for Business
Anthropic’s IPO filing: $16B half-year revenue, an $80.7B net loss, founder control and concentrated customers. A sourced breakdown of what it means.
Pivot, Decoded: What It Actually Means
A pivot is a deliberate change in a company’s core strategy — the product, the customer, the business model or the market — made because what the company learned is better than what it was building.
Product-market fit, Decoded: What It Actually Means
Product-market fit is the point where a product solves a real problem for a specific group of people so well that they keep using it, pay for it and tell others, and growth starts to come from demand rather than from the team pushing.