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Did you get a good price?
Moneylines, or totals at the same line. Line moved? Use the full calculator
Enter two prices
Includes the book's cut.
Saves a picture you can post. Nothing is sent to us.
Put in the price you bet and the price right before the game started. If yours was better, you beat the close. That is how pros measure themselves. New to the idea? Read what closing line value is.
We hold our own rules to the same test. See the Standard
Check your own bets
For anyone who bets.
Grade all your bets
YOU Bet -110, -105 and +140. They closed -120, -115 and +150.
TOOL 2 of 3 beat the close.
Is your record luck?
YOU Went 30-20 on coin-flip bets.
TOOL A coin flipper does that about 1 in 10 times.
What did that worse price cost you?
YOU Bet 300 times at -115, not -105.
TOOL That cost $1,242.24 at $100 a bet.
Find the fair line
YOU One market at +150 and -170.
TOOL Fair is +157 / -157. The cut is 2.96%.
For model builders
Race your rules next to ours.
Build your first model
YOU One belief and a chatbot. No code.
GUIDE A rule you can follow daily, then a real grade.
Race your picks
YOU Post "MTL ML -195" on X.
TOOL Graded on the DraftKings close, on the public board.
Check a frozen rule
YOU Revealed file plus its fingerprint.
TOOL Match. The rule never changed.
Just watching
See what we are testing.
- Meet the rules What each rule bets on, and how it is doing.
- Lab notes What we tested, what we found, what failed.
- Watch the race Every pick, graded live on the dashboard.