League Two · Tuesday, 1 September 2026 · 19:45. Final score 2–2 (half-time 1–2). Before kick-off we rated it 57% under 2.5 goals — the match finished with 4, 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 | 43% | 57% | Under |
| Over 3.5 goals | 26% | 74% | no pick |
| Both teams to score | 51% | 49% | Yes |
The result model puts Accrington ST at 34%, the draw at 28% and Grimsby at 38%, from expected goals of 1.12 and 1.23.
| Market | Price | Implied | Our rating | Edge |
|---|---|---|---|---|
| Over 2.5 goals | 1.90 | 50% | 43% | -7% |
| Under 2.5 goals | 1.90 | 50% | 57% | +7% |
| Both teams to score | 1.73 | 54% | 51% | -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: Accrington ST 3.50, draw 3.50, Grimsby 2.00.
The league sets the starting point. League Two has produced over 2.5 goals in 49% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Accrington ST have 2 in 3 this season (1 of 1 at home), Grimsby 1 in 3 (0 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 52% and 46%.
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 40% 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 45%.
Head to head. These sides have met 6 times in three years, producing over 2.5 goals in 33%. 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 44%.
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 42%, from expected goals of 1.12 for Accrington ST and 1.23 for Grimsby. Folding in 30% of that view gives 43%.
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 |
|---|---|---|---|---|
| Accrington ST | 3 | 67% | 67% | 67% |
| Grimsby | 3 | 33% | 33% | 33% |
More: Accrington ST season stats · Grimsby season stats · League Two table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.