Championship · Tuesday, 1 September 2026 · 20:00. Final score 1–1 (half-time 0–1). Before kick-off we rated it 60% over 2.5 goals — the match finished with 2, 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 | 60% | 40% | Over |
| Over 3.5 goals | 36% | 64% | no pick |
| Both teams to score | 64% | 36% | Yes |
The result model puts Birmingham at 47%, the draw at 22% and Southampton at 32%, from expected goals of 2 and 1.62.
| Market | Price | Implied | Our rating | Edge |
|---|---|---|---|---|
| Over 2.5 goals | 1.73 | 55% | 60% | +5% |
| Under 2.5 goals | 2.10 | 45% | 40% | -5% |
| Both teams to score | 1.53 | 61% | 64% | +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: Birmingham 2.70, draw 3.40, Southampton 2.45.
The league sets the starting point. Championship has produced over 2.5 goals in 52% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Birmingham have 2 in 3 this season (1 of 1 at home), Southampton 3 in 3 (1 of 1 away). 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 55% and 58%.
Last season still counts, briefly. With 3 and 3 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 48% and 61%.
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 54%.
Head to head. These sides have met 4 times in three years, producing over 2.5 goals in 75%. That nudges the number 10% of the way toward the head-to-head pattern — deliberately small, because fixtures change more than reputations do — landing on 56%.
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 70%, from expected goals of 2 for Birmingham and 1.62 for Southampton. Folding in 30% of that view gives 60%.
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.
| Team | Games | O2.5 | O3.5 | BTTS |
|---|---|---|---|---|
| Birmingham | 3 | 67% | 33% | 67% |
| Southampton | 3 | 100% | 67% | 100% |
More: Birmingham season stats · Southampton season stats · Championship table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.