The Bet
Best ball is fantasy football's fastest-growing format, but no major platform supports it for the NFL playoffs. ESPN, Yahoo, and Sleeper all drop best ball after the regular season. Our hypothesis: a dedicated playoff best ball leaderboard fills an unmet niche that existing platforms ignore because the playoff window is too short to justify the engineering investment.
We thought a focused, single-purpose tool could capture a passionate audience that the big platforms don't serve.
What We Built
A lightweight leaderboard app designed for maximum simplicity:
- Next.js frontend with server-side rendering for fast initial loads
- Neon Postgres for player scores and league data
- ESPN API integration for real-time scoring data
- Vercel deployment for zero-ops hosting
The product was intentionally minimal: import your best ball roster, and we calculate your optimal lineup each week of the playoffs. No draft tools, no trade features, no social — just a leaderboard that answers "who's winning?"
What Happened
We validated the core concept before writing significant code:
- Market validation at zero cost — surveyed fantasy football communities on Reddit and Twitter. Found active demand: multiple threads asking "where can I track playoff best ball?" with no good answers.
- Core scoring logic validated — the optimal lineup calculation (selecting the highest-scoring player at each position from a roster) works correctly against historical data.
- Prototype built — basic UI with mock data demonstrated the experience we wanted to deliver.
But we hit a timing problem. We started building in January 2026 — the NFL playoffs were already underway. By the time we had a deployable product, there were only two playoff weeks left. Not enough runway to acquire users and get meaningful data.
What We Learned
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Seasonal products need calendar-aligned build cycles. The playoff window is 4 weeks (Wild Card through Super Bowl). To launch with the playoffs, development needs to start in November at the latest. Starting in January means building for next season.
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Zero-cost validation is real. We confirmed demand, validated the scoring algorithm, and built a working prototype without spending anything on infrastructure. Neon's free tier + Vercel's hobby plan = $0/month.