KäPa v JäPS — prediction, stats and goal analysis

Ykkosliiga · Friday, 29 May 2026. Final score 2–1 (half-time 1–0). Rebuilt from the season as it stood that morning, our rating would have been 63% 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 goals63%37%Over
Over 3.5 goals43%57%no pick
Both teams to score64%36%Yes

The result model puts KäPa at 37%, the draw at 24% and JäPS at 39%, from expected goals of 1.59 and 1.63.

How we got this number

The league sets the starting point. Ykkosliiga has produced over 2.5 goals in 62% of its matches, and that is where a team with no record of its own would sit.

Each side's own record. KäPa have 4 in 8 this season (1 of 3 at home), JäPS 2 in 8 (1 of 3 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 59% and 52%.

Last season still counts, briefly. With 8 and 8 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 67% and 56%.

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 62%.

Head to head. These sides have met 6 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 64%.

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 63%, from expected goals of 1.59 for KäPa and 1.63 for JäPS. Folding in 30% of that view gives 63%.

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
KäPa850%25%50%
JäPS825%13%0%

Head to head

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
28 Jun 24JäPS 2–2 KäPaO2.5
28 Apr 24KäPa 3–3 JäPSO2.5

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