The Two Most Popular Fantasy Formats
"Fantasy football" used to mean one thing: a league of 10 or 12 friends who drafted in August, set lineups every Tuesday night, fought over the waiver wire on Wednesdays, and crowned a champion the week before Christmas. Season-long leagues are still the dominant fantasy format, but in the past five years a new format has consumed an enormous chunk of the fantasy market: best ball.
Best ball strips out the parts of fantasy that take time. You draft a roster — 18 or 20 players — and that's it. You don't set a lineup. You don't make trades. You don't drop players or pick up waiver wire pickups. The platform automatically plays your highest-scoring lineup every week based on your roster, and you compete against thousands of other drafters over the entire NFL season.
The two formats aren't really competing for the same audience anymore. They serve different needs. Choosing between them comes down to one question: how much time do you actually want to spend on fantasy this year?
How Best Ball Works
The best-ball format was popularized by Underdog Fantasy and is now offered on DraftKings, FanDuel (limited), and several other platforms. The mechanics are simple:
Step 1: Draft. A 12-team best-ball draft is a 20-round snake draft. You pick 20 players — typically 2 QBs, 6–7 RBs, 7–8 WRs, 2 TEs, and 1 D/ST. Drafts can take 30–90 minutes depending on whether they're slow or fast drafts.
Step 2: Watch football. Every week of the NFL season, the platform automatically plays your highest-scoring lineup from your roster. If you drafted Justin Jefferson and he goes for 35 points that week, that 35 counts. If your QB1 has a bye and your QB2 plays, the platform automatically swaps. There's literally nothing you do during the season.
Step 3: Cash. The contest pays out to top finishers based on cumulative points across the regular season, plus a playoff bracket from weeks 15–17 in many formats. Tournament-style best-ball contests can have payouts ranging from doubles to 500x your entry on the largest contests.
How Season-Long Fantasy Works
Season-long fantasy is the original format. You draft with friends or random opponents in August or September, then manage your team for 14–17 weeks until the playoffs.
Active lineup setting. Every Sunday morning (or Thursday night for early-week games), you set your starting lineup. Bench players don't score. If you forget to start your highest-projected player, that's on you.
Waivers and free agency. Players who weren't drafted are available on the waiver wire. Most leagues run a Wednesday morning waiver process where teams bid for or claim available players. Active waiver management is one of the biggest edges in season-long.
Trades. You can negotiate trades with other managers throughout the season. Lopsided trades, blocked trades, and trade negotiations are part of what makes season-long social and engaging.
Playoffs. Most leagues run a 4-team or 6-team playoff in weeks 15–17, with seeding based on regular-season record. The playoffs determine the league champion regardless of regular-season dominance, which can frustrate teams that finished 12-1.
Time Commitment: This Is the Real Question
The single biggest practical difference between the two formats is how much time they consume. If you're trying to choose, this should be the first thing you consider.
Best ball: About 1 hour total per draft (some slow drafts run 30 days but require only a few minutes per day). After the draft, zero time. You can play 50 best-ball drafts and still spend less weekly time on fantasy than someone in a single season-long league.
Season-long: 1 draft (2–3 hours) plus 30–60 minutes per week reading injury reports, setting lineups, managing waivers, and negotiating trades. Across a full season, that's 20–30 hours of active engagement minimum. Many serious season-long managers spend significantly more.
If you have 20+ hours over a season to dedicate to fantasy, season-long offers a richer experience. If you don't, best ball lets you compete without committing time you don't have.
Skill Edge: Where Each Format Rewards Effort
Both formats reward skill, but the skill is different.
Best ball rewards drafting. The entire skill of best ball is the draft itself. You can't fix a bad roster. You can't recover from a busted pick. Your draft is your season. The skills that translate are: understanding ADP value, identifying late-round breakouts, managing positional scarcity, and constructing rosters that maximize ceiling.
Season-long rewards in-season management. A mediocre draft can become a championship roster through good waiver claims, savvy trades, and matchup-aware lineup decisions. Many of the best season-long players draft only middle-of-the-pack rosters and grind their way to titles through better in-season decisions than their leaguemates.
Different skills. Different time investments. Different rewards.
Stakes and Payouts
Best ball offers a wider range of stakes than any other format. Free contests, $1 entries, $5, $25, $100, $250, $500, $1,000, and several "Big Board" contests with $500K+ guaranteed prize pools every NFL season. The $25 Best Ball Mania flagship on Underdog has paid out millions to first place every year since 2021.
Season-long stakes are usually friend-group based — $50 buy-ins, $100 buy-ins, occasionally $500–$1,000 leagues among serious players. The total prize pool of any single season-long league is small, but the social value is high.
Social Experience
This is where season-long has an unmatched advantage. A 12-team season-long league with 11 of your friends is a four-month group chat. Trash talk, trade negotiations, weekly recaps, championship bragging rights — these are part of why people play season-long. You can't replicate that in best ball, where your "leaguemates" are anonymous strangers from across the country.
If your goal is competition with friends, season-long is dramatically better. If your goal is competition for prize money, best ball is dramatically better.
| Feature | Best Ball | Season-Long |
|---|---|---|
| Time Commitment | ~1 hour total | 20–30+ hours per season |
| Lineup Management | None — auto-played | Weekly |
| Waivers/Trades | None | Yes |
| Skill Required | Heavy on draft | Draft + in-season |
| Multi-Roster Play | Yes — run 50+ at once | Limited |
| Stakes Available | $0.25 to $10,000+ | $50 to $5,000 typical |
| Top Prize Potential | $1M+ on flagship contests | League-pool dependent |
| Social Experience | Anonymous strangers | Group of friends |
| Best Platform | Underdog Fantasy | DraftKings or ESPN |
Which Format Should You Pick?
Pick best ball if: You have limited time during the NFL season. You like drafting but not weekly lineup management. You want to compete in tournaments with five-figure payouts. You're a fantasy player who lost interest in season-long because the in-season grind became a chore. You want to play 10+ rosters at once instead of being limited to one team.
Pick season-long if: You have a fantasy league with friends and you value the social experience. You enjoy in-season management — checking the wire, negotiating trades, agonizing over Sunday-morning lineup decisions. You want a richer season-long narrative arc. You'd rather be deeply invested in one team than lightly invested in many.
Honestly, do both. They aren't mutually exclusive. Most fantasy players we know run one season-long league with friends for the social experience and 5–20 best-ball drafts on Underdog for the prize equity. The two formats complement each other — season-long for narrative, best ball for tournament upside.
Where to Play Best Ball in 2026
Underdog Fantasy is the dominant best-ball platform and remains the destination for serious best-ball players. Their flagship Best Ball Mania contest in 2026 is paying out $1M+ to first place again, with multiple six-figure prizes. Underdog also runs smaller best-ball tournaments, sit-and-go drafts, and a strong free-contest tier for new players.
DraftKings has its own best-ball product, growing every year, and now offers comparable contest variety. If you're already a DraftKings volume player, the platform consolidation is convenient. FanDuel offers limited best-ball options.
For most players in 2026, Underdog is still the recommended best-ball platform. The contest variety, prize pool depth, and platform polish are best in class.
The Bottom Line
Best ball is the rise of the past five years. It exploded in popularity for a reason: it solved the time problem that drove a lot of casual players away from season-long fantasy. You draft, you watch football, you maybe cash for big money — and your Tuesday night isn't ruined by a forgotten lineup change.
Season-long isn't dying. It's just becoming a more deliberate choice. If you're committing to season-long in 2026, you're choosing it for the social and managerial experience, not because it's the default. That's a healthy thing for the format.
Pick the format that matches your life. Or pick both.