paper-gambler

The Paper Gambler

Paper money. $100,000 simulated, no sportsbook account, no bet is ever placed anywhere. Nothing here is betting advice.

The method

Pinnacle's two-sided price with the bookmaker's margin removed is the closest publicly available estimate of a true probability. Any softer book offering better than that is mispriced by definition. The book bets those, small, and measures itself against the closing line.

01

Price, don't pick

A bet exists only relative to a fair probability. No reference price, no bet — enforced in code, which is why the book placed nothing on its first live run.

02

Positive expected value, after the vig

The edge floor is 2%, because the reference book's own margin is under that and a smaller gap sits inside the noise. A 15% ceiling rejects prices that are almost always stale or misparsed.

03

Quarter Kelly, then a cap

A quarter of the Kelly stake, never more than 1% of equity on one bet. The cap binds more often than the fraction, deliberately: the danger is not a bad night, it is a wrong reference sized up.

04

Line-shop every bet

The fair price comes from the sharpest book; the bet goes to whichever soft book offers the best number. A book is never both the reference and the counterparty.

05

Closing line value is the scoreboard

An edge shows through CLV in roughly fifty bets and through profit only after thousands. Every report leads with CLV.

06

Circuit breakers a human resets

New bets stop at a 20% drawdown or a 5% daily loss. Settlement never stops. Clearing a halt is a command a person runs.

07

The limits belong to a person

The risk policy ships provisional and says so on every page until its owner ratifies it.

08

Learn after the games, never during

The write-up is produced after settlement from deterministic statistics. Nothing about today's results changes today's betting.

09

Models earn their money in shadow first

An in-house model logs candidates and stakes nothing until it shows positive CLV in shadow and beats real closing lines in backtest. The first two attempts failed that gate and were not deployed.

10

A sport is admitted on evidence

New sports are priced and logged but never staked until they clear four gates, the last being positive shadow CLV.

More than one book

The method runs as a fleet. Main line-shops DraftKings and BetRivers. Ontario runs the same code but restricts placement to the books a bettor in Ontario can actually use, and logs cross-book middles as candidate edges without staking them. Both price against Pinnacle. Retail keeps every rule above except the yardstick: it prices against the regulated North American books' own consensus, the market a bettor here actually faces, and bets only at regulated books. Agent is the deliberate exception to rules 1 and 7: a language model picks its bets, reviews them each morning, and sets its own limits inside a hard envelope, while the breakers stay fixed and a person still clears a halt. It is measured against Retail on the same books and the same yardstick.

What it deliberately does not do

No parlays, because vig compounds. No live betting, because prices move faster than a batch cycle reads them. No player props yet. No staked middles or hedges. And no real money: there are no sportsbook credentials anywhere in the system and no code path that could place a bet.