Championship · Saturday, 22 August 2026 · 15:00. Our rating makes this 50% to go over 2.5 goals, so our lean is over. The Championship average is 51%.
Open this match in the app →| Market | Yes | No | Our call |
|---|---|---|---|
| Over 2.5 goals | 50% | 50% | Over |
| Over 3.5 goals | 25% | 75% | no pick |
| Both teams to score | 56% | 44% | Yes |
The result model puts West Ham at 39%, the draw at 26% and Charlton at 35%, from expected goals of 1.4 and 1.3.
| Market | Price | Implied | Our rating | Edge |
|---|---|---|---|---|
| Over 2.5 goals | 1.67 | 57% | 50% | -6% |
| Under 2.5 goals | 2.20 | 43% | 50% | +6% |
| Both teams to score | 1.91 | 49% | 56% | +7% |
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 Ham 1.33, draw 4.50, Charlton 7.50.
The league sets the starting point. Championship has produced over 2.5 goals in 51% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. West Ham have 1 in 1 this season, Charlton 1 in 1. Those records are pulled toward the league rate with the weight of about 32 matches — enough that two or three unusual games cannot swing a rating — giving 53% and 53%.
Last season still counts, briefly. With 1 and 1 games played this season, last season's rates are still blended in and fade out entirely by game 14 — the point at which our testing showed they stop adding accuracy. That moves the two figures to 60% and 40%.
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%.
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 51%, from expected goals of 1.4 for West Ham and 1.3 for Charlton. Folding in 30% of that view gives 50%.
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 Ham season stats · Charlton season stats · Championship table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.