Club Sp. San Lorenzo v Nacional Asuncion — prediction, stats and goal analysis

Primera Clausura · Friday, 28 August 2026. Final score 0–3 (half-time 0–1). Rebuilt from the season as it stood that morning, our rating would have been 40% 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 goals40%60%Under
Over 3.5 goals23%77%no pick
Both teams to score48%52%No

The result model puts Club Sp. San Lorenzo at 28%, the draw at 31% and Nacional Asuncion at 42%, from expected goals of 0.9 and 1.18.

How we got this number

The league sets the starting point. Primera Clausura has produced over 2.5 goals in 42% of its matches, and that is where a team with no record of its own would sit.

Each side's own record. Club Sp. San Lorenzo have 1 in 6 this season (0 of 2 at home), Nacional Asuncion 1 in 6 (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 37% and 37%.

Last season still counts, briefly. With 6 and 6 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 37% and 37%.

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 38%.

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 34%, from expected goals of 0.9 for Club Sp. San Lorenzo and 1.18 for Nacional Asuncion. Folding in 30% of that view gives 37%.

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 40%.

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
Club Sp. San Lorenzo617%0%17%
Nacional Asuncion617%17%50%

More: Club Sp. San Lorenzo season stats · Nacional Asuncion season stats · Primera Clausura table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.