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Rating methodology

How We Rate Esports Betting Sites

Every operator score BO5 publishes is the output of six weighted criteria and a small set of caps, not an editorial impression. This page holds the weights, the caps and the rules for what happens when we have not assessed something, so any score we publish can be checked rather than merely believed.

Maintained by the BO5 editorial team · Last reviewed 2 September 2026

The six criteria and what they weigh

Each criterion is scored from 1 to 5 in half-point steps. The weights reflect what actually separates one esports book from another: coverage and markets are why you would choose an esports-first operator at all, and the licence and payout record are what decide whether that choice costs you later.

CriterionWeightWhat it measures
Esports coverage depth25%How many titles the book prices, and whether esports is a primary category or a side tab.
Market variety per title15%Whether it lists per-map winners, handicaps and totals, or stops at the match winner.
Odds value and pricing10%Where its prices sit against the rest of the board on the same match.
Payout speed and payout record20%Published withdrawal windows, and what complaint registers show about whether they hold.
Licence and regulatory record20%Which licence it holds, what recourse that gives a player, and any regulator decision on record.
Live betting, streaming and platform10%In-play markets, streams on tracked matches, and how the app behaves.

How a score is built

Each criterion score is multiplied by its weight, the results are added, and the total is divided by the weight actually assessed. The result is rounded to one decimal place, and any cap that applies is then taken off the top. The number on a review page is that output rather than a value typed into a field, so a score cannot disagree with the working published beside it.

A score is never the whole review. Two books can land within a tenth of each other and suit completely different bettors, which is why every review sets out who it suits and who should look elsewhere rather than leaving the number to speak.

The caps, and why they exist

A cap stops a well-covered book scoring its way past its own record. Without them an operator with an excellent market menu and an open regulator decision against it would score in the high fours, which would contradict the strongest content on its own review page.

Active regulator prohibition order

Trigger. A gambling regulator has published a decision prohibiting the operator from serving a market it was serving.

Effect. Caps the licence and regulatory record criterion at 2.0 and the overall score at 3.5.

Documented delayed-payout pattern

Trigger. Delayed-withdrawal complaints recur in a public register across more than twelve months.

Effect. Caps the payout speed and payout record criterion at 2.5.

Criterion not assessed

Trigger. We hold no assessment for a criterion at the time of writing.

Effect. The criterion is marked not assessed and its weight is redistributed across the remaining five in proportion.

Criteria we have not assessed

Where we hold no assessment for a criterion we mark it not assessed and redistribute its weight across the remaining five in proportion. We do not fill the gap with a middle value, because a 3.0 typed in to keep a table tidy is indistinguishable on the page from a 3.0 we measured.

Odds value is the criterion this most often applies to. Assessing it honestly means comparing prices on the same matches across books over a period, and until that has been done for an operator the criterion carries no score.

What we never publish

We do not publish an aggregate rating. Aggregate rating markup requires a count of ratings behind it, BO5 collects no user ratings, and a single editorial score aggregates nothing. Any page presenting one editor's judgement in the shape of a crowd verdict is misrepresenting it.

We also do not publish a commercial value we have not checked. Bonus amounts, wagering conditions, payout windows and minimum deposits move without notice, so each one carries the date it was verified against the operator's own terms. A value with no verification date does not render at all, and the label appears with a plain note in its place.

Commission does not move a score. We earn a commission when a reader signs up through a link on these pages, the disclosure appears above the operator table rather than in the footer, and this rubric is what makes the claim checkable.

Scores published against this rubric

The full comparison, including the operators we have not scored yet, is on esports betting sites.