Fantasy4Fun is your companion for Yahoo Fantasy Baseball, helping you optimize lineups, schedule waiver pickups at the right time, and stay on top of every league — so you can spend less time on repetitive tasks and more time enjoying the strategy, competition, and fun of managing your team.
antasy4Fun combines cutting-edge automation with an elegant interface, giving you an unfair advantage over every other manager and letting you focus on the fun parts of the game.
Your lineup is automatically checked and optimized periodically, before games get underway. Confirmed starting pitchers are placed first, dual-eligible players are shuffled to the best spots, and no open slot is ever left sitting on the bench.
Schedule waiver wire pickups down to the minute. Set your move in advance and go to bed — Fantasy4Fun submits it the moment waivers open, before anyone else even wakes up.
See everything across all your Yahoo leagues in one place. Live scores, win rates, matchup standings, innings pitched tracking, weekly add counts, and waiver priority — no tab switching needed.
Fantasy4Fun pulls today's and tomorrow's probable starting pitchers directly from official MLB sources. You'll always know who's taking the mound before making any lineup decisions.
Sign in with your existing Yahoo account in one click. Your password is never seen or stored by Fantasy4Fun — the login goes straight through Yahoo's own secure system.
Fantasy4Fun keeps working even after you close your browser. The automation runs in the background around the clock, so your teams are always managed — day and night.
Getting started is as simple as clicking Sign in with Yahoo. Fantasy4Fun uses Yahoo's own secure login system — your password goes directly to Yahoo and is never seen or stored by Fantasy4Fun.
Your personal mission control. The Dashboard aggregates the most critical performance metrics across all your leagues into a clean, scannable KPI grid.
Every card on the dashboard is interactive — tap any KPI to jump directly to the relevant detail screen. The dashboard refreshes automatically when you open the extension, or manually with the sync button.
Total lineup optimizations made by the engine across all leagues.
Combined win percentage across all active leagues.
Number of scheduled transactions awaiting execution.
Aggregate W-L record (and ties) across all leagues.
How many live matchups you're currently ahead in.
Innings pitched progress vs. your league's minimum or maximum limit.
Current week's add transactions used vs. your league limit.
Your best waiver wire priority number across all leagues.
The most powerful feature in Fantasy4Fun. The Autopilot Engine checks your lineup periodically throughout the day — always before games start — and makes intelligent roster moves on your behalf, automatically.
The Autopilot Center gives you complete visibility and control over the intelligent optimization engine. Enable it globally or per-league, then watch it work.
Every lineup move Autopilot makes is logged and grouped by date. You can see which player was activated, what position they played, and — once the game is over — exactly what stats they put up for your team.

Timing is everything in fantasy baseball. Schedule your add/drop moves to execute with 1-minute precision — directly from the Yahoo Fantasy website.
When a hot free agent hits waivers, everyone scrambles. With Fantasy4Fun, you schedule the move in advance and go to sleep — the engine executes it the moment waivers clear.
You don't have to leave Yahoo to schedule a move. When you browse to a player's add/drop page on Yahoo Fantasy, Fantasy4Fun automatically pops up a scheduling panel so you can set the exact time right then and there.
Navigate to any player transaction page on fantasysports.yahoo.com
Fantasy4Fun detects the player and shows a clean scheduling overlay right on top of the Yahoo page
Choose who to drop, set the exact time, and hit Schedule. The move is saved and will execute automatically at that time.
Open the F4F popup → Transactions tab to see all pending moves and their status
Real-time matchup data, standings, and deep analytics across every league you manage. Stop switching tabs — everything lives here.
Each league card shows you the complete picture of your current week — from record and rank to the live matchup score, pitching status, and which of your pitchers are starting today and tomorrow.
The Insights tab computes three aggregate metrics across all your leagues to give you a 30,000-foot view of your overall performance.
Your combined win rate across ALL active leagues. A single number that tells you how consistently dominant you are as a fantasy manager.
Percentage of your leagues where you hold a top-3 (podium) position. High dominance = multiple championship contenders.
Championship Pace (STRONG) if you hold rank #1 in any league. Building Momentum (STEADY) otherwise. A quick gut-check on your season trajectory.
You set your preferences once. Fantasy4Fun does everything else — automatically, in the background, even when your computer is off.
Fantasy4Fun runs 24/7 on secure cloud servers. Even if your laptop is closed or your browser isn't open, your lineups are being managed and your scheduled moves will fire exactly on time.
Stop losing points to lineup mistakes and missed waiver pickups. Here's how Fantasy4Fun changes the game:
| Scenario | Manual Management | With Fantasy4Fun |
|---|---|---|
| Starting a confirmed pitcher | ✗ Check Yahoo manually every morning | ✓ Auto-inserted by Autopilot before each game |
| Waiver wire pickup timing | ⚠️ Wake up at 2 AM and submit manually | ✓ Scheduled in advance, executes automatically |
| Multi-league monitoring | ✗ 5+ browser tabs open at all times | ✓ One dashboard, all leagues unified |
| Players eligible at multiple positions | ⚠️ Manual trial and error each day | ✓ Autopilot finds the smartest placement automatically |
| Tracking how your lineup moves performed | ✗ Impossible without a personal spreadsheet | ✓ Every move logged with the player's actual game stats |
| Innings pitched minimum / maximum tracking | ⚠️ You have to remember to check each week | ✓ Live IP status shown right on your dashboard |
| Works when your browser is closed | ✗ Nothing happens — you're on your own | ✓ Keeps running 24/7, even with your laptop shut |
Got questions? We've got answers. If you don't find what you're looking for, use the Contact form inside the extension.