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Track bets like a pro, stake like a mathematician.
Add Prophet's picks to a slip, size every stake with fractional Kelly, build accumulators and let results settle automatically. Then hand the whole slip to your favourite AI with one click.
- Kelly staking for every bet
- Auto-settlement from the results feed
- Copy an AI-ready prompt of your slip
Pro
Launch price · standard price $14.99 a month
Free for 7 days, then billed monthly. Cancel any time. 18+ only.
Founding Discord member? Claim your free Legacy access. 18+ only.
A Kelly criterion bet tracker and bankroll manager
The Bet Builder is a bet tracker and Kelly criterion calculator built around ProphetAI's published picks. Add picks to a slip, work out a sensible stake for each one from your own bankroll, and let the results settle for you.
Kelly staking, sized to your bankroll
Fractional Kelly turns a price and a confidence level into a stake that grows with the edge and shrinks as the odds get longer. Enter your bankroll in your own currency and each pick shows a suggested stake, or tells you plainly when there is no edge at your odds.
Singles, accumulators and your own prices
Build singles and accumulators from the live ledger, change the odds to the price your bookmaker is actually offering, and see the combined stake and return before you decide anything. Links open a search for the event on the bookmakers you choose.
Automatic settlement and a clean ledger
Bets taken from ProphetAI's picks settle from the same results feed that settles the machine's own bets, so your running profit, strike rate and bankroll curve stay accurate without manual entry.
Hand the slip to your own AI
One click copies an AI-ready prompt of your slip, so ChatGPT, Claude or Gemini can give a second opinion on it. ProphetAI never places a bet for you.
How it works
- Step 1Add picks from the ledger to your slip
- Step 2Set your bankroll and the odds you can actually get
- Step 3Follow the suggested Kelly stakes, or ignore them
- Step 4Watch results settle and your bankroll update
Questions
- What is the Kelly criterion in betting?
- A staking formula that sizes a bet by the size of your edge: bigger when the price is clearly in your favour, smaller or zero when it is not. Most bettors use a fraction of full Kelly to keep swings manageable.
- Does the Bet Builder place bets?
- No. It tracks and sizes bets you decide to make elsewhere. ProphetAI is an information service, not a bookmaker, and all of its own results use a virtual bankroll.
See the evidence first: the public track record, the daily diary and the plans. Results use a virtual bankroll and are not betting advice. 18+ only.