About us

Bet On Boxing is a boxing odds model with the working shown. The front page is running a boxing match — punches thrown, punches landed, knockdowns, a referee, three judges keeping three separate scorecards — and every price beside it is computed from that fight, from exactly where it stands, while you watch.

It is not a bookmaker, an affiliate, a tipping service or a news site. You cannot place a bet here, there is no account to open, no money changes hands, and there is no link to anywhere that would take a stake.

Why the fighters are invented

The design this site was built from showed real, famous boxers with live-looking odds beside them, quotes attributed to real journalists, and a world rankings table with made-up ranking points. Every one of those is a statement about a real person that nobody checked.

So the fighters here are invented. All eight of them, deliberately, with compound surnames so they cannot be mistaken for anybody. The engine attaches punch statistics, knockdown counts, win prices and a career record to whoever it is given, and against a real name those would be a fabricated record of a real person's ability. There is a section of the front page headed Eight fighters who do not exist which says exactly that.

What is real on this site

• The arithmetic. Every price is one divided by the share of simulated fights that outcome took. The three-way book comes to exactly 100.0%, and the five-way method market does too, and its two halves add back to the three-way prices — because they are two ways of counting the same fights.
• The rules. Ten-point must scoring, a point off for every knockdown, the ten count, the neutral corner, three independent judges and the decision taxonomy that falls out of their three cards. All implemented, not approximated.
• The calibration. Two evenly matched fighters connect with about 31% of what they throw, which is what professional punch statistics show. Referee stoppages outnumber count-outs by about three to one, which is the shape of the real record books. A heavier division ends early more often.
• The seventeen weight divisions and their published limits, with the kilos and stones converted from the pounds rather than typed in a second time.
• The calculators. The odds converter, the overround tool, the free-bet valuation and the weight-class finder all do ordinary arithmetic and are checked by a test suite that runs in node.

What is not real

• The fighters, their records, their punch statistics and their ratings.
• The fights, the card, the titles and every price on the page.
• Any suggestion that watching this helps anyone pick a winner. It does not, and it is not meant to.

The tests

The model is checked by a suite of 115 assertions that runs without a browser. It asserts the scoring rules exactly rather than sampling them — a twelve-round shutout is 120-108, a round with one knockdown is 10-8, the only knockdown of a round wins it whatever the punch statistics say — and it checks that the book is exactly 100%, that each attribute moves the outcome the right way, and that the division table in the code and the division table on the page have not drifted apart.