Championship · Saturday, 17 October 2026 · 15:00. Final score 3–2 (half-time 1–2). Before kick-off we rated it 54% under 2.5 goals — the match finished with 5, so that call missed. That rating was frozen into a version-controlled ledger before the game and has not been touched since.
Open this match in the app →| Market | Yes | No | Our call |
|---|---|---|---|
| Over 2.5 goals | 46% | 54% | Under |
| Over 3.5 goals | 22% | 78% | no pick |
| Both teams to score | 53% | 47% | Yes |
The result model puts West Brom at 39%, the draw at 31% and Blackburn at 30%, from expected goals of 1.12 and 0.94.
| Market | Price | Implied | Our rating | Edge |
|---|---|---|---|---|
| Over 2.5 goals | 2.10 | 45% | 46% | +1% |
| Under 2.5 goals | 1.73 | 55% | 54% | -1% |
| Both teams to score | 1.83 | 50% | 53% | +3% |
Implied percentages have the bookmaker's margin removed, so they add to 100 and can be compared with our rating directly. Edge is simply the gap between the two. A positive edge means our model thinks the outcome is likelier than the price suggests — it is not a tip, and a high probability with a negative edge is a poor bet however safe it looks. Prices are a pre-match snapshot from a single bookmaker and move constantly.
Match odds: West Brom 1.91, draw 3.50, Blackburn 4.10.
The league sets the starting point. Championship has produced over 2.5 goals in 53% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. West Brom have 4 in 10 this season (1 of 5 at home), Blackburn 8 in 10 (3 of 5 away). Those records are pulled toward the league rate with the weight of about 24 matches — enough that two or three unusual games cannot swing a rating — giving 49% and 61%.
Last season still counts, briefly. With 10 and 10 games played this season, last season's rates are still blended in and fade out entirely by game 40 — the point at which our testing showed they stop adding accuracy. A single season is part luck, so each club's record is first pulled toward the league average by 34 games' weight. That moves the two figures to 49% and 49%.
The mix. Weighted 40% home side, 40% away side and 20% league — the split that beat every alternative across 30,582 matches of testing — that gives 50%.
Head to head. These sides have met 5 times in three years, producing over 2.5 goals in 20%. That nudges the number 5% of the way toward the head-to-head pattern — deliberately small, because fixtures change more than reputations do — landing on 48%.
Goal expectation. Separately a Poisson model built from attack and defence strength — using real expected-goals data where the league has it — puts this match at 34%, from expected goals of 1.12 for West Brom and 0.94 for Blackburn. Folding in 30% of that view gives 44%.
Calibration. Tested against 97,729 past matches, our ratings below 55% have run consistently too pessimistic — a figure in the high 30s, for instance, has come in about four points higher. So ratings in that range are lifted part-way back, giving 46%.
This breakdown is generated from the same inputs the rating uses, so it cannot describe a calculation we did not perform. The full model is set out in the methodology.
More: West Brom season stats · Blackburn season stats · Championship table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.