Union St. Gilloise v Zulte Waregem — prediction, stats and goal analysis

Pro League · Saturday, 15 August 2026 · 15:00. Final score 0–0 (half-time 0–0). Before kick-off we rated it 50% over 2.5 goals — the match finished with 0, so that call missed. That rating was frozen into a version-controlled ledger before the game and has not been touched since.

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Our ratings for this match

MarketYesNoOur call
Over 2.5 goals50%50%Over
Over 3.5 goals31%69%no pick
Both teams to score54%46%Yes

The result model puts Union St. Gilloise at 45%, the draw at 24% and Zulte Waregem at 31%, from expected goals of 1.61 and 1.3.

Bookmaker prices and where we differ

MarketPriceImpliedOur ratingEdge
Over 2.5 goals1.6557%50%-7%
Under 2.5 goals2.2043%50%+7%
Both teams to score1.8052%54%+2%

Implied percentages have the bookmaker's margin removed, so they add to 100 and can be compared with our rating directly. Edge is simply the gap between the two. A positive edge means our model thinks the outcome is likelier than the price suggests — it is not a tip, and a high probability with a negative edge is a poor bet however safe it looks. Prices are a pre-match snapshot from a single bookmaker and move constantly.

Match odds: Union St. Gilloise 1.45, draw 4.20, Zulte Waregem 6.50.

How we got this number

The league sets the starting point. Pro League has produced over 2.5 goals in 51% of its matches, and that is where a team with no record of its own would sit.

Each side's own record. Union St. Gilloise have 1 in 1 this season, Zulte Waregem 1 in 1. Those records are pulled toward the league rate with the weight of about 32 matches — enough that two or three unusual games cannot swing a rating — giving 52% and 52%.

Last season still counts, briefly. With 1 and 1 games played this season, last season's rates are still blended in and fade out entirely by game 14 — the point at which our testing showed they stop adding accuracy. That moves the two figures to 41% and 53%.

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 48%.

Head to head. These sides have met 2 times in three years, producing over 2.5 goals in 50%. That nudges the number 10% 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 56%, from expected goals of 1.61 for Union St. Gilloise and 1.3 for Zulte Waregem. Folding in 30% of that view gives 50%.

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
Union St. Gilloise1100%100%100%
Zulte Waregem1100%0%100%

Head to head

20 Dec 25Union St. Gilloise 2–0 Zulte WaregemU2.5
3 Dec 25Union St. Gilloise 2–1 Zulte WaregemO2.5
1 Nov 25Zulte Waregem 1–4 Union St. GilloiseO2.5
5 Feb 23Union St. Gilloise 4–0 Zulte WaregemO2.5
4 Sept 22Zulte Waregem 1–3 Union St. GilloiseO2.5
15 Dec 21Zulte Waregem 0–2 Union St. GilloiseU2.5

More: Union St. Gilloise season stats · Zulte Waregem season stats · Pro League table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.