Signal Syndicate · Tools
Free research tools
The same deterministic math our desk runs — Kelly sizing, closing-line value, expected value, parlay shape. Free, in your browser, no account, nothing stored or sent. We publish the losses alongside the wins, because a number you can check is worth more than a number you have to trust — here's why a good win rate still loses at a bad price.
Kelly sizing guide
Bankroll + your price + a probability → a ¼-Kelly sizing guide, capped at 2%. A guide to size, never a suggestion to bet.
Open →CLV calculator
Your price vs our price vs the close — the process metric, computed from decimal math, not vibes.
Open →EV calculator
Expected value per unit at a price, break-even win rate, and the American fair price of your probability.
Open →Parlay / combo preview
Up to three legs: combined probability, payout multiplier, and EV — the same guardrail the app uses.
Open →Monte Carlo preview
Stress a multi-leg ticket with 200 free simulations. The full Lab lives in the app (sign-in required): 1 run/day free, 10/day Standard, and Pro's 5,000-run scenarios that save and revisit.
Open →These figures are restated at every site deploy from the live promoted lanes only — shadow lanes are research-only and never counted here, and disclosed on every performance page.
New here? Read what closing-line value is and why we grade against it, or the methodology behind every number on this site.