DraftKings lineup builder for NFL and UFC
Lineups you can understand
Clarity DFS builds your DraftKings lineups and shows its work. You see where each projection comes from, how much of the field will be on every player, and how each lineup did across 10,000 simulated slates.
Signing up and logging in are the same step: we email you a link. No password, no card. Free during the 2026 beta.
- Projected
- 107.2
- Big day
- 175.0
- Top 1% finish
- 1.8%
- Cashes
- 20%
| Slot | Player | Salary | Proj | Owned |
|---|---|---|---|---|
| QB | Patrick MahomesKC | $6,200 | 21.3 | 16% |
| RB | De'Von AchaneMIA | $6,500 | 16.0 | 38% |
| RB | Chase BrownCIN | $6,600 | 13.4 | 18% |
| WR | Amon-Ra St. BrownDET | $7,900 | 13.8 | 46% |
| WR | Malik NabersNYG | $6,500 | 11.9 | 21% |
| WR | Xavier WorthyKC | $4,400 | 6.3 | 7% |
| TE | Greg DulcichMIA | $3,000 | 5.6 | 4% |
| FLEX | Jaylen WarrenPIT | $5,700 | 11.6 | 9% |
| DST | CAR DSTCAR | $3,000 | 7.2 | 6% |
- A typical day and a big one107.2 points is the middle of what this lineup does. 175.0 is the kind of day that wins a tournament.
- What the simulations sayAcross 10,000 simulated slates it finished in the top 1% of the field 1.8% of the time and cashed in 20%.
- Who else will have himEvery player shows projected ownership. Worthy at 7% and Dulcich at 4% are where this lineup leaves the crowd.
- Why these two togetherMahomes is stacked with his own receiver, so one long touchdown scores for you twice.
Where the numbers come from
No black box.
Most optimizers hand you a projection and ask you to trust it. Here is what goes into ours.
Start with the betting market
Sportsbook player props and team totals are the sharpest public numbers there are. We turn them into fantasy points and blend them with our own model, built on play-by-play usage. The player list marks which projections have a market line behind them and which are our estimate.
Learned from real contests
After each slate, projected ownership is checked against real DraftKings contest results and the model is adjusted. You see a number for every player before you build, so you know when you are with the crowd and when you are not.
10,000 versions of the slate
Teammates rise and fall together, and so do the two sides of a shootout. Every lineup is played through 10,000 simulated slates against a simulated field, which is where the top 1% and cash rates come from.
Track record
We grade ourselves every week.
When the games are over, every projection is scored against what actually happened. These are the first three weeks of the 2026 NFL season.
| Week | Clarity DFS and salary alone |
|---|---|
| Week 1 |
Clarity DFS 0.62 Salary alone 0.54 |
| Week 2 |
Clarity DFS 0.55 Salary alone 0.47 |
| Week 3 |
Clarity DFS 0.62 Salary alone 0.53 |
The score is the correlation between projected and actual DraftKings points across every projected player that week. 1.00 would be a perfect match, 0 would be no better than guessing. Salary is the honest bar to clear, because a player's price already reflects how good DraftKings expects him to be.
0.80 to 0.83
Ownership, against the real field
How closely our projected ownership matched what people actually played in three Week 3 contests, with 2,103 to 4,901 entries each.
The misses get written down too. Each week's biggest ones go back into the model before the next slate.
How it works
From slate to DraftKings in three steps.
Pick your slate
An NFL main slate, a Showdown, or a UFC card. Salaries and betting lines are already loaded, so there is nothing to upload.
Make it yours
Lock who you believe in, exclude who you don't, change any projection, set your stacks and exposure limits. DraftKings wants tool-built lineups to carry your own input, so you adjust at least two players before building.
Build and export
Build one lineup or 150, for a tournament, a small field, or cash. Export the CSV and upload it on DraftKings. Clarity DFS never enters a contest for you.
The real app, on a real Week 3 slate. It works the same on your laptop and your phone.
The parts people ask about
It tells you what it did, and why.
Follow an expert
Have someone whose picks you trust? Paste their player pool and exposures straight from their post. Your lineups are built from their players at their percentages, and you can remove it in one click.
A reason when a build fails
If your rules can't all be met at once, you are told which one is in the way: the stack, a group, a minimum, a team cap or a lock. Not just "no feasible lineups."
Ahead of the injury news
Players ruled out are marked as the news breaks, often ahead of DraftKings' own board, and their workload moves to whoever replaces them. A lock on someone who is out is dropped, and the build says so.
Your settings, kept
Each slate you open remembers your locks, exclusions and projections. Close the tab on Thursday and pick it back up on Sunday morning.
Questions
Before you sign up.
Is Clarity DFS part of DraftKings?
No. Clarity DFS is an independent tool. It is not affiliated with, endorsed by or sponsored by DraftKings.
Does it enter contests for me?
No. It builds lineups and gives you a CSV file. You upload that file on DraftKings yourself and choose your own contests.
Which sports does it cover?
NFL main slates, NFL Showdown, and UFC, all on DraftKings.
What does it cost?
It is free during the 2026 beta. You don't enter a card to sign up.
Do I need a password?
No. Enter your email and we send a sign-in link. Open it on the device you want to use and you stay signed in there.
Will this make me win?
No tool can promise that, and you should be wary of any that does. Clarity DFS gives you better numbers and shows its reasoning. The decisions, and the risk, stay with you.
Build your first lineup this week.
Enter your email and you are in.
No password, no card. Free during the 2026 beta.