Rapperswil v FC WIL 1900 — prediction, stats and goal analysis

Challenge League · Friday, 24 July 2026. Final score 4–5 (half-time 2–3). Rebuilt from the season as it stood that morning, our rating would have been 33% 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 goals33%67%Under
Over 3.5 goals16%84%no pick
Both teams to score28%72%No

The result model puts Rapperswil at 36%, the draw at 27% and FC WIL 1900 at 37%, from expected goals of 1.28 and 1.29.

How we got this number

The league sets the starting point. Challenge League has produced over 2.5 goals in 0% of its matches, and that is where a team with no record of its own would sit.

Each side's own record. Rapperswil have 0 in 0 this season, FC WIL 1900 0 in 0. 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 0% and 0%.

Last season still counts, briefly. With 0 and 0 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 34% and 24%.

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 23%.

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 25%.

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 47%, from expected goals of 1.28 for Rapperswil and 1.29 for FC WIL 1900. Folding in 30% of that view gives 32%.

Season opener. One of these sides has not played a league game yet. Openers run about 2.5 points under their league's norm, measured across 2,727 of them, so the rating is docked to 29%.

Calibration. Tested against 97,729 past matches, our ratings below 55% have run consistently too pessimistic — a figure in the high 30s, for instance, has come in about four points higher. So ratings in that range are lifted part-way back, giving 33%.

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
Rapperswil0———
FC WIL 19000———

Head to head

11 Apr 26Rapperswil 2–0 FC WIL 1900U2.5
13 Feb 26FC WIL 1900 0–2 RapperswilU2.5
7 Nov 25Rapperswil 1–2 FC WIL 1900O2.5
26 Aug 25FC WIL 1900 1–3 RapperswilO2.5

Things worth knowing

More: Rapperswil season stats · FC WIL 1900 season stats · Challenge League table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.