1. Deild · Monday, 18 May 2026. Final score 1–3 (half-time 0–2). Rebuilt from the season as it stood that morning, our rating would have been 69% for over 2.5 goals. This match is older than our frozen ratings ledger, which keeps 30 days, so that figure is a reconstruction from pre-match data rather than a number we published at the time — a distinction worth making, because only the frozen ones prove what we actually said beforehand.
Open this match in the app →| Market | Yes | No | Our call |
|---|---|---|---|
| Over 2.5 goals | 69% | 31% | Over |
| Over 3.5 goals | 45% | 55% | no pick |
| Both teams to score | 68% | 32% | Yes |
The result model puts Grotta at 20%, the draw at 20% and Afturelding at 60%, from expected goals of 1.24 and 2.26.
The league sets the starting point. 1. Deild has produced over 2.5 goals in 71% of its matches, and that is where a team with no record of its own would sit.
Each side's own record. Grotta have 2 in 3 this season (1 of 1 at home), Afturelding 2 in 3 (1 of 1 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 71% and 71%.
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 71%.
Head to head. These sides have met 4 times in three years, producing over 2.5 goals in 50%. 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 70%.
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 68%, from expected goals of 1.24 for Grotta and 2.26 for Afturelding. Folding in 30% of that view gives 69%.
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 |
|---|---|---|---|---|
| Grotta | 3 | 67% | 33% | 67% |
| Afturelding | 3 | 67% | 33% | 33% |
More: Grotta season stats · Afturelding season stats · 1. Deild table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.