Shelbourne v Drogheda United — prediction, stats and goal analysis

Premier Division · Monday, 14 September 2026. Final score 1–2 (half-time 1–1). Rebuilt from the season as it stood that morning, our rating would have been 52% 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 goals52%48%Over
Over 3.5 goals29%71%no pick
Both teams to score58%42%Yes

The result model puts Shelbourne at 48%, the draw at 25% and Drogheda United at 27%, from expected goals of 1.65 and 1.17.

How we got this number

The league sets the starting point. Premier Division has produced over 2.5 goals in 47% of its matches, and that is where a team with no record of its own would sit.

Each side's own record. Shelbourne have 17 in 29 this season (10 of 15 at home), Drogheda United 15 in 30 (9 of 14 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 49%.

Last season still counts, briefly. With 29 and 30 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 51% and 47%.

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 49%.

Head to head. These sides have met 12 times in three years, producing over 2.5 goals in 67%. 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 50%.

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 54%, from expected goals of 1.65 for Shelbourne and 1.17 for Drogheda United. Folding in 30% of that view gives 51%.

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 52%.

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
Shelbourne2959%28%69%
Drogheda United3050%33%57%

Head to head

19 Jun 26Drogheda United 2–2 ShelbourneO2.5
24 Apr 26Shelbourne 3–4 Drogheda UnitedO2.5
27 Feb 26Drogheda United 1–2 ShelbourneO2.5
22 Sept 25Drogheda United 2–1 ShelbourneO2.5
19 May 25Shelbourne 0–0 Drogheda UnitedU2.5
18 Apr 25Drogheda United 2–2 ShelbourneO2.5

More: Shelbourne season stats · Drogheda United season stats · Premier Division table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.