JäPS v KäPa — prediction, stats and goal analysis

Ykkosliiga · Friday, 28 August 2026. Final score 0–0 (half-time 0–0). Rebuilt from the season as it stood that morning, our rating would have been 60% 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.

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Our ratings for this match

MarketYesNoOur call
Over 2.5 goals60%40%Over
Over 3.5 goals37%63%no pick
Both teams to score58%42%Yes

The result model puts JäPS at 48%, the draw at 25% and KäPa at 26%, from expected goals of 1.62 and 1.14.

How we got this number

The league sets the starting point. Ykkosliiga has produced over 2.5 goals in 60% of its matches, and that is where a team with no record of its own would sit.

Each side's own record. JäPS have 9 in 20 this season (3 of 10 at home), KäPa 14 in 20 (8 of 10 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 53% and 65%.

Last season still counts, briefly. With 20 and 20 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 55% and 67%.

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 61%.

Head to head. These sides have met 8 times in three years, producing over 2.5 goals in 100%. 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 63%.

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 52%, from expected goals of 1.62 for JäPS and 1.14 for KäPa. 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.

Season form

TeamGamesO2.5O3.5BTTS
JäPS2045%20%25%
KäPa2070%35%65%

Head to head

28 Jun 26KäPa 3–1 JäPSO2.5
29 May 26KäPa 2–1 JäPSO2.5
5 Sept 25KäPa 2–3 JäPSO2.5
2 Aug 25KäPa 0–3 JäPSO2.5
6 Jun 25JäPS 2–2 KäPaO2.5
19 Oct 24KäPa 3–5 JäPSO2.5

More: JäPS season stats · KäPa season stats · Ykkosliiga table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.