Olympiakos Piraeus v Atromitos — prediction, stats and goal analysis

Super League · Saturday, 22 August 2026. Final score 1–0 (half-time 0–0). Rebuilt from the season as it stood that morning, our rating would have been 43% 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 goals43%57%Under
Over 3.5 goals19%81%no pick
Both teams to score44%56%No

The result model puts Olympiakos Piraeus at 50%, the draw at 29% and Atromitos at 21%, from expected goals of 1.33 and 0.75.

How we got this number

The league sets the starting point. Super League has produced over 2.5 goals in 50% of its matches, and that is where a team with no record of its own would sit.

Each side's own record. Olympiakos Piraeus have 0 in 0 this season, Atromitos 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 50% and 50%.

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 42% and 51%.

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 47%.

Head to head. These sides have met 6 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 48%.

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 1.33 for Olympiakos Piraeus and 0.75 for Atromitos. Folding in 30% of that view gives 44%.

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 41%.

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 43%.

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
Olympiakos Piraeus0———
Atromitos0———

Head to head

10 Jan 26Atromitos 0–2 Olympiakos PiraeusU2.5
22 Nov 25Olympiakos Piraeus 3–0 AtromitosO2.5
19 Jan 25Atromitos 1–2 Olympiakos PiraeusO2.5
29 Sept 24Olympiakos Piraeus 2–0 AtromitosU2.5
21 Dec 23Atromitos 0–0 Olympiakos PiraeusU2.5
27 Aug 23Olympiakos Piraeus 4–0 AtromitosO2.5

Things worth knowing

More: Olympiakos Piraeus season stats · Atromitos season stats · Super League table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.