The F3 Proof Ledger

Accountable by design.

Anyone can show you a good track record after the fact. F3 is built the other way round — every prediction is locked when it's made, fingerprinted publicly before its game, then settled on the official result and kept win or lose. A record built to be trusted — not one curated to impress.

// EVERY PREDICTIONLOCKED AT ISSUE· TIMESTAMPED· IMMUTABLE· ON THE RECORD
How it works

Trust the method, not the marketing.

01MOMENT OF ISSUE

Locked when it's made.

Every prediction is recorded with the time it was made, the price at that moment, and its fingerprint is published before the game. What was said stands.

02LATER · RETROSPECTIVE

Judged against the official result.

After the game, each prediction is settled from the league's official results.

03NOTHING DELETED

Wins and losses both stay.

Nothing is quietly deleted after the fact. The record is the whole record — the opposite of a tipster who keeps only the winners.

04SELF-REPORTED

The engine shows its own health.

F3 publishes when the model is drifting or the data isn't clean — so the record comes with its own honesty check.

Timestamps and public fingerprints cover every prediction from 20 October 2026.

What you see

See the whole record. Watch it grow.

F3 keeps performance figures out of its public marketing on purpose. Inside the product, clients see the whole record — live and backtest, every row labelled — and every new prediction timestamped and fingerprinted before its game.

Talk about your businessApply for private access

One engine, built for business — and a small number of private clients.

For business

Publishers, platforms and networks

Add advanced NBA & MLB prediction capability to your platform, content or customer experience — without building the modelling, pricing and proof stack yourself.

Explore F3 for Business →
Private clients — currently limited to 100 places

Controlled access to institutional-grade sports prediction signals — the same engine our partners build on, in your hands directly.

Explore F3 for Private Clients →