Show Navigation
Show Menu

What is Fantasy Football?

By Jared Smola 5:25am EST 3/1/23

“Abandon all hope ye who enter here”  from Dante’s Inferno.

So you have decided to give fantasy football a try. Good. 

It could be that your work league needed one more manager, or your college buddies wanted to make a league to help keep in touch. There are dozens of reasons to get into fantasy football. 

It doesn’t matter why you are here. We are happy we can help you start your journey into this beautiful game we all love. 

Welcome to Draft Sharks.

More than 50 million people play. Yet some folks are still wondering what fantasy football is. 

Not sure where to start? We got you.

Let’s get to it:

The decades-old traditional fantasy football league format is called “redraft.” 

It’s called “redraft” because you draft a new team every year. You will also sometimes hear it referred to as “season-long fantasy football.”

And this straight-forward league format is the entry point for most fantasy football players.


Before you dive deeper into “what is fantasy football,” you should know that even beginners can win their fantasy leagues. We’ve helped tens of thousands of “newbies” take down their league titles with our draft and in-season tools. To learn more about how you can win – even as a rookie – check out this quick video

Jump to:

League Format   |   The Draft   |   Rosters & Lineups   |   Free Agents   |   Trading   |   Playoffs

What is Fantasy Football - League Format

Redraft fantasy football is most commonly played in a league format. Leagues usually consist of (usually) 8 or more teams, with 10- and 12-team leagues being the most popular sizes. 14- and 16-team leagues are less common and tend to be more difficult for beginner managers.

Creating an even number of teams allows the league to play head-to-head matchups every week throughout the season.

Head-to-Head Play

In a head-to-head fantasy football league, teams play against each other every week on a rotating schedule. This is the most common format and the default type on most platforms. 

Each team selects a lineup of players that collects fantasy points based on the projected real-life performance of the selected NFL players.

You win if your team scores more fantasy points than your opponent’s that week. It’s that simple!

Win-loss records determine the league standings, and the top teams will advance to the playoffs. League playoffs are usually Weeks 15-17 in the NFL season and use single elimination head-to-head matchups to determine the champion.

Total Points Play

You still set a weekly lineup to collect fantasy points in this format. But rather than facing another team each week, your team would simply collect points throughout the season. 

The league standings are then determined by who has the most total fantasy points.

This league format usually runs without playoffs, crowning the highest-scoring team at the end of the year.

What is Fantasy Football - The Draft

Most leagues begin the season with a fantasy football draft in one of two main formats: 

Snake draft or auction draft (aka salary cap draft).

Snake Draft

A snake-style (or serpentine) draft places teams in a predetermined order, then flips that order with each subsequent round. 

So if you open the draft with the first pick, you’d be making the last selection in Round 2, the first selection of Round 3, the last pick of Round 4, and so on.

One challenge here: 

Even with the draft order reversing by round, you can still find the earlier teams gaining an advantage. 

for example: If you pick first, you’re getting 3 of the top 25 players that come off the board. Meanwhile, team 12 in the initial order gets player #36 with its 3rd pick.

This isn’t a huge issue in general, and most snake-draft leagues stick with the round-by-round flipping. That includes most large fantasy football tournaments. But some leagues counter that potential advantage with a “3rd-round reversal.”

What is a 3rd-round reversal? 

Instead of the draft snaking back through Round 3, it repeats the Round 2 draft order.

So the team that picked last in Round 1 would pick first in Round 2 and first in Round 3.

And then the draft order would go back to snaking the rest of the way.

Some fantasy football leagues follow linear draft order instead

But what is a linear draft? 

It’s a draft that simply repeats the same order every round. Pick 1st overall? Then you’re picking 1st in every round.

You can probably see why this isn’t generally the fairest way to run a draft. The managers selecting early in the draft gain a huge advantage!

Not sure how to tackle your draft? Our Draft War Room is designed to get your team off to the optimal start in any format.

Auction Draft or Salary Cap Draft

What is an “auction draft” in fantasy football? Or what is a Salary cap draft? 

Simple. Think of what an auction is… then apply it to building your fantasy team.

One player gets nominated at a time for bidding, usually with league members taking turns nominating – or posting – a player for bidding.

Every team can then bid on that player, with the highest bid winning the player.

You start with a budget to pay players “salaries,” often $200, to fill your roster.

Every time you “win” the bidding on a player, two things happen:

  1. That player is now on your team, and
  2. The winning dollar bid you made is deducted from your budget. 

So you have a shot at any player you want but must work within your predetermined budget.

The auction usually continues until every team has filled its roster. You can read more about auction drafts.


An auction draft involves more strategy than a snake or linear draft. That’s why we update our Auction Draft Strategy Guide every summer.

What is Fantasy Football - Rosters and Lineups

Whatever your draft type, the purpose of the fantasy football draft is to build your roster of players. 

You’ll use that roster to fill a starting lineup weekly, with the non-starters making up your bench. 

Most commonly, you’re starting some combination of QBs, RBs, WRs, TEs, Kickers, and Team Defense/Special Teams – with many different ways to combine them.

Fantasy Football Positions

QB  |  RB  |  WR  |  TE  |  Flex  |  K  |  DST  |  IDP

Quarterback (QB)

Most fantasy football leagues start one QB. You can carry a backup QB on your roster but often don’t need to if you have a high-end starter.

Another method for 1-QB leagues is “streaming.” 

What does streaming in fantasy football mean?

That’s when you regularly pick up players off waivers to start at a particular position.

In leagues of 10 teams or fewer, you can often find enough QB options on the waiver wire weekly to pick up a guy with the best combination of production and matchup.

Does streaming work in larger leagues?

Streaming QBs can even work in 12-team fantasy football leagues, though it depends more on how many QBs your league mates roster.

We wouldn’t recommend trying it in leagues of more than 12 teams.

Some fantasy football leagues start 2 QBs or use a Superflex position. These formats return value to the QB position, which loses value vs. reality in the traditional 1-QB format. 

What is Superflex?

That’s when your lineup includes a flex position where you can play a 2nd QB or a player from another position, usually RB, WR or TE.


If you love watching QBs score points, you might be ready to join a “superflex” league. That’s a league that allows you to start two QBs (instead of the traditional single QB). You can read more about playing in superflex leagues here.

Superflex puts a premium on QBs

A “superflex” position follows the same basic principle but allows you to fill that lineup spot with a QB. 

Because QBs are almost always the highest scorers across fantasy football formats, you’ll want to try to play a second QB in that spot. 

Making that lineup spot superflex instead of just a second QB offers you more flexibility if you don’t have a second QB to start in a given week.

Running back (RB)

Nearly all fantasy football leagues start at least one RB. In most cases, you’ll start at least two. And RBs are usually included in flex positions. We’ll look at flex spots more in a minute.

RBs were once the driving force of fantasy football. You almost needed to take one with your first pick – and likely your second one.

That’s not the case anymore, with more committee backfields throughout the NFL increasing the number of fantasy-viable RBs.

Wide Receiver (WR)

Fantasy football lineups nearly always start multiple WRs, with two or three WR spots being the most common. WRs are nearly always included in “flex” consideration.

(You can read about the flex position below.)

And it’s the position with the most fantasy-relevant players. At this point, most NFL teams commonly run 3-WR alignments – sometimes even going beyond three.

Tight End (TE)

Most fantasy football leagues start just one TE, with another potentially in consideration for a flex position.

TEs won’t typically factor into your flex decision, though. The position doesn’t see as much reception volume as WR or touch volume as RB.

You can consider streaming TEs in some cases.

Like at QB, this is when you pick up a player off the waiver wire to start, usually because he faces a particularly good matchup. 


Our weekly rankings, adjusted fantasy points allowed, and strength of schedule pages can help you find strong streaming options throughout the season.

Flex Position

Your league might use a flex position (or more than one) to add a starting-lineup spot without requiring it to come from a specific position. Most commonly, however, a “flex” player can be any RB, WR or TE. 

In some cases, league settings limit you to choosing among just 2 of those 3 positions.


Kickers remain a part of most fantasy football leagues. However, they have started to disappear from more formats in recent seasons. 

Kickers get fantasy points for every extra point and field goal (FG) made, usually with more credit for longer FGs. 

This is one of the least important positions in fantasy football and can be filled at the end of your draft. Do not waste a high pick on a kicker!

Team Defense & Special Teams (DST)

This is just what it sounds like. You play the defense from 1 NFL team in your lineup each week. 

You derive points from that team’s defensive performance and nearly always from the special teams. However, this does not include field goals and extra points since those points fall under the kicker position.

So in most cases, you only get special-teams points when that NFL team scores a TD on a kickoff or punt return. (Some leagues do award points for return yardage as well.)

DST should almost always be streamed.

This is the easiest position to stream. 

Very few team defenses score consistently well, so you’re usually better off targeting defenses with good matchups. This also means you should wait until the end of your drafts to address the position.

Make sure you use our Team Defense (DEF) Rankings to look for streaming options each week!

Individual Defensive Players (IDP)

Instead of team defenses, some fantasy football leagues use IDP.

In this format, you start a certain number of defensive players along with the offensive players: some combo of defensive linemen, linebackers, and defensive backs. 

These defenders score fantasy points for categories such as tackles, sacks, pass breakups, and turnover plays.


The specifics beyond that can vary widely by league. That’s a big part of why we update our IDP Strategy Guide every summer.

The Lineup

In most fantasy football formats, you’ll select a weekly starting lineup from your full roster of players. The most common alignment includes:

  • 1 QB
  • 1 TE
  • 2 RBs
  • 2-3 WRs
  • 1 Flex
  • 1 K
  • 1 DST

There is always room for your fantasy football league to vary from that norm, either to make things more challenging or to simplify the format for less-experienced players. 

Whatever your specific lineup settings, the players in your starting lineup will collect points for you in a given week. The remaining players on your roster make up your bench (or reserves). 

How to get the most points out of your lineup

Not going to lie; start-sit decisions can keep you up at night. Panicked, you will wake up at 3 am. Should you start Nameless WR over Faceless RB in your flex? Wrong decision. You lose by less than a single point. Completely preventable. Life is pain. 

Here is where we can help. Take the guesswork out of your start sit decisions and check out our Team Intel Tool.

Built on our 3-D Predictions 

Best Ball is the easiest format to play.

There is another format known as “best ball.” What is best ball fantasy football? This format has you draft a roster, the same as usual.

But instead of you deciding who to start every week, the league-hosting site will automatically select your top scorers at each position to calculate your fantasy points for the week.

So, for example ...

Suppose your league is set to start:

  • 1 QB
  • 2 RBs
  • 3 WRs
  • 1 TE
  • 1 Flex
  • 1 K
  • 1 DST

In that case, you’ll automatically get credit for the highest QB score on your roster for that week, the two highest-scoring RBs, the three highest-scoring WRs, the highest-scoring TE, K, and DST, and then the highest remaining scorer among your RBs, WRs, and TEs (to fill the flex).


Since best ball is the easiest fantasy football format, consider joining a best ball league this summer. You can learn more about best ball format and strategy.

What is Fantasy Football - Free Agents

How to Work Your Waiver Wire

Players who are not selected in your league’s draft will automatically become free agents. Every league format can handle free agents a little differently. We will go over the basics to help you out.

First Come, First Served (FCFS)

This style of handling free agents puts no limits on when league teams can acquire available players. 

There are benefits to having some portion of in-season weeks run this way. 

Let’s say; for example, you find out Sunday morning that one of your RBs won’t be playing because of injury. 

The only other RB available on your bench is on bye. Without FCFS free agency, you might have to take a 0 for that spot.

Chaos can be part of the free agent pickup!

The potential downside of only handling free agents this way is that it can create a free-for-all atmosphere.

If 1 or 2 owners in your league are always on the computer – or smartphone app – then they’re likely to reap an advantage in snapping up players whose value suddenly spikes on some breaking news.

Of course, getting the jump on your competition when news breaks can be helpful in even the best free-agent setups.

Timely and actionable fantasy football news is crucial

That’s why we update our Shark Bites news section whenever important news breaks.

We give you the news PLUS a quick take on how to take advantage of what just happened. Timely and actionable. 

And if you subscribe to our email list, you’ll get the most important fantasy news sent to your inbox throughout the year. 

Waiver Wire

The term waiver wire – or waivers – is often used interchangeably with general free agency in fantasy football leagues. 

But a “waiver” refers to your claim on a freely available player. And there are different ways to handle such claims.

Waiver Priority

This system ranks every team in the league for priority in claiming free agents, just like the NFL does. 

This priority might be set in reverse of league draft order. It might also rank teams from worst to best on season record.

In either case, “using” your priority to claim a player will usually drop you to the bottom of the priority list for the next run. 

That mixes in some strategy of deciding how much you want a given player. You can read more about our philosophy on working the waiver wire here.

FAAB or Blind-Bid Waivers

What is FAAB? Well, FAAB stands for free agent acquisition budget. Many leagues use a system with a full-season budget and weekly “blind-bid” or “FAAB” waiver runs. 

That’s when every team in the league is free to enter an amount they would pay to acquire a specific freely available player in a given week. 

The highest bid wins that player, and the bid amount is deducted from your full-season waiver budget. (It’s not hard to see how strategy comes into play.)

Hybrid rules sometimes work best

The optimal way to handle free agents in single fantasy football leagues is likely some combo of waivers and FCFS. 

The former keeps the “always-on” guy from snatching the surprise producers in each week’s NFL games. 

The latter keeps you from taking a 0 when Sunday morning news catches you off-guard.


Whatever your format, we post our top waiver-wire recommendations each week in our Free Agent Focus. And the Free Agent Finder highlights the top available options (every week) in your league.

What is Fantasy Football - Trading

The free-agent market won’t always provide what you need to help your fantasy football team. Frankly, it shouldn’t. 

If it is that easy to mine the waiver-wire for roster-boosting pieces, then you’re probably ready to move up to a more challenging league.

Trades can help your fantasy team in a variety of ways

You can often get a bigger jolt this way because you’re acquiring a better player than what’s freely available on the market. 

You can also weaken an opponent by swiping a player due a production spike ( “buy low”). 

Ideally, you can achieve both goals while also unloading a guy who has been running lucky and is in for a fall in production (“sell high”).

Trading makes fantasy fun. But it can be difficult and a little scary. Let us help you trade with confidence. 

Our Trade Navigator tool can help you find the optimal trading partner and evaluate a potential deal before you make it.

Don’t trade before you know the details.

You can read more about our Trade Philosophy here. 

And when you’re looking to boost your squad, our Trade Navigator can help you find the optimal trading partner and evaluate a potential deal before you make it.

What is Fantasy Football - Playoffs

You don’t need playoffs to determine the champion in your fantasy football league. But most leagues do.

Generally, the top few teams – that number can vary by format – after 14-16 weeks of the “regular season” advance to the playoffs and then battle head-to-head over the final 2-3 weeks.  

We strongly recommend avoiding Week 18 of the NFL season with your league schedule

With their NFL seeding determined, you’ll likely find playoff teams resting starters. We like NFL starters on our fantasy squads. This creates an issue. 

And even non-playoff teams might decide to get a look at younger players or deactivate mildly injured guys who would typically suit up.

Some fantasy football leagues select playoff teams by taking the two teams with the best records and the two remaining teams with the most total points.

There is no perfect system when striving for fairness and fun. 

So if you’re in a new league or setting one up yourself, we’d recommend finding a format that works best for your group.

Final Thought

Now that you know the answers to “what is fantasy football,” it might be a good time to think about another question: “How can I win at fantasy football?” Here’s what we think is the straight answer. To win your league today, you must focus first on your draft. And to do that – you need a real-time draft tool that walks you through every pick of your draft. It doesn’t matter if you want to try a best ball league, super flex league, auction league, or even a traditional redraft league – you need a tool to help you figure out which players to pick.

How You Can Win With Our Draft War Room

Dominate your Fantasy League with
the Ultimate Tool Stack
In the heat of a draft, you want as much intel as possible. The key is integrating that into one simple, powerful tool.
Dominate your Fantasy League with
the Ultimate Tool Stack
In the heat of a draft, you want as much intel as possible. The key is integrating that into one simple, powerful tool.
3D Projections

3D Projections

3D Projections: True Dimension of Every Player’s Potential

Based on our award-winning projections, an axis of data points give insights far deeper than a ranking

View Our Accuracy Awards View Our Accuracy Awards »

Advice Draft Strategy

Advice That’s Actionable on Draft Day

Round-by-Round Draft Strategy Guides, Sleepers, Undervalued Players, Busts and Handcuffs

3D Projections

Draft War Room

Draft War Room: Intel Turned Into Killer Picks

Command your entire draft with a dynamic tool synced to your league. Updating and adapting in real time.

3D Projections

Keep Dominating Throughout The Season

Quickly find the free-agent gems, pull the trigger on the perfect trade & make the right start/sit decisions.

Keep Dominating
Draft Sharks

$6/month thereafter, billed semi-annually, one-click cancel anytime.

Turn your phone into a draft weapon with our FREE APP

Download on the App Store Get It on Google Play