DataSlips prices every DraftKings prop and line against a stats model fitted on real results. Then it does what pick sellers won't: it locks its picks before tip, fingerprints them, and grades every one in public, losses included.
Live from the public ledger.
Screenshots of winning slips prove nothing: you never see the ones that lost, or when they were posted. Here's the difference.
Four steps, run every game day, automatically.
Every DraftKings player prop, moneyline, spread and total, pulled and converted to a fair, no-vig probability.
Game logs, projected minutes, matchup, home and road, rest and pace, blended with the market and fitted on real outcomes.
Ninety minutes before tip, every leg worth more than its price is locked into a hash chain. No edits after that.
After the game, each pick is checked against the box score and against DraftKings' final price before tip.
Wins and losses are noisy. A good bettor can lose for a month, and a bad one can run hot. It takes thousands of bets for a win rate to mean anything.
The closing line is DraftKings' last price before tip, after every injury report and every sharp bet has moved it. It's the best estimate of the true odds there is. If our picks keep getting a better price than the close, they are worth money over time, and that shows up in a few hundred bets instead of a few thousand.
So that's the number on the front page. If it turns negative, you'll see that too.
Walk-forward test on games the model hadn't seen, at DraftKings' closing prices.
A backtest is a hypothesis, not proof. That's what the live ledger is for. Full backtest
Free shows you the prices. Pro shows you what the data says about them.
No card needed
or $149/year · 7-day free trial · cancel any time
No one can promise that, and anyone who does is selling you something. Most bettors lose. DataSlips shows you the real chance of each bet next to what DraftKings is paying, and publishes how its own picks do. Bet only what you can afford to lose.
Each game's picks are written into an append-only log 90 minutes before tip. Every entry is fingerprinted with SHA-256 and includes the previous entry's fingerprint, so changing or deleting any pick breaks every fingerprint after it. The Proof page has a button that re-checks the whole chain in your own browser.
How much better the price we locked was than DraftKings' final price before the game. Over many bets, beating the close is the most reliable sign of a real edge, well before the win rate settles.
No. We read publicly listed prices. You place bets yourself, on DraftKings or anywhere legal for you.
Yes, any time, from your account. You keep Pro until the end of the period you paid for.
Free to start. Pro is $19 a month after a 7-day trial.