Fantasy Football Lineup Optimizer – Smarter Start/Sit Advice

The StatChasers Fantasy Football Lineup Optimizer automatically pulls your Sleeper leagues, calculates your true optimal lineup, and shows exactly how many points you’re giving away each week.

No spreadsheets. No guesswork. No bias.

What Is the StatChasers Fantasy Football Lineup Optimizer?

The StatChasers Fantasy Football Lineup Optimizer is a multi-league start/sit decision engine built specifically for Sleeper managers.

Instead of manually checking projections, matchups, and injury reports across multiple tabs, this tool pulls everything together and calculates your true optimal lineup in seconds.

  • Imports all active Sleeper leagues
  • Loads weekly player projections automatically
  • Calculates optimal lineup (FLEX + SUPERFLEX supported)
  • Compares optimal vs current starters
  • Shows exact bench points left behind
  • Generates start/sit swaps with projected improvement
  • Projects matchup scores and win probability

If you manage multiple leagues, this becomes your Sunday command center.

It replaces opening 7+ tabs — and prevents lineup mistakes before kickoff.

Core Features

🔌 Sleeper API Integration

Enter your Sleeper username and instantly load the data you need across every league.

  • All redraft leagues
  • Current rosters
  • Matchups
  • League settings (FLEX, SUPERFLEX, etc.)
  • Best Ball leagues automatically excluded
📊 Lineup Optimization Engine

The Fantasy Football Lineup Optimizer respects your roster rules and calculates your true best projected lineup.

  • Respects FLEX + SUPER_FLEX rules
  • Handles position eligibility
  • Calculates optimal projected points
  • Compares optimal vs current starters
“You’re leaving 14.7 points on the bench.”
🔄 Start/Sit Recommendation Engine

Get specific lineup swaps — not vague “start your studs” advice.

  • Who to bench
  • Who to start
  • Point improvement for each swap
  • Empty slot detection
  • Risk flags (OUT, BYE, Questionable)
📈 Win Probability & Matchup Analysis

See your matchup the way a sharp manager would — including opponent optimization.

  • Compare vs opponent’s current lineup
  • Or compare vs opponent’s optimal lineup
  • Projected final score
  • Win probability %
  • Confidence indicators
💰 Free Agent & Waiver Integration

Optional but powerful. Enable free agent scanning to turn this into a weekly decision engine.

  • Scans available free agents
  • Recalculates optimal lineup including FA options
  • Suggests waiver pickups
  • Ranks waiver priority by projected impact
🚨 Injury & Availability Alerts

Avoid starting landmines — the tool flags risky starters automatically.

  • OUT players
  • BYE week players
  • Questionable starters
  • Other risky plays
🧠 Built for Multi-League Managers

Designed to scale with serious volume. If you manage 5, 10, or 25 leagues, this becomes your command center.

  • Handles 280+ leagues
  • Mobile-first responsive layout
  • Two display modes: detailed league cards (Home View) and streamlined matchups table

Ready to Optimize Your Lineups?

Stop guessing. Start maximizing projected points.

🚀 Launch Fantasy Football Lineup Optimizer
Is this only for Sleeper? +
Yes. The StatChasers Lineup Optimizer is built specifically for Sleeper league formats and integrates directly with the Sleeper API.
Does it work with Superflex leagues? +
Yes. SUPER_FLEX and FLEX rules are fully respected, including position eligibility and roster configuration.
Does it support Best Ball leagues? +
Best Ball leagues are automatically excluded since lineups are optimized by the platform itself.
How often are projections updated? +
Projections load weekly (currently Week 16 data) and are refreshed to reflect the most up-to-date fantasy football projections available.
Can it recommend waiver pickups? +
Yes. When free agent integration is enabled, the tool scans available players and suggests high-impact waiver pickups based on projected lineup improvement.