HNK Rijeka v Istra 1961 — prediction, stats and goal analysis

HNL · Sunday, 23 August 2026. Final score 3–2 (half-time 2–0). Rebuilt from the season as it stood that morning, our rating would have been 49% 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 goals49%51%Under
Over 3.5 goals27%73%no pick
Both teams to score51%49%Yes

The result model puts HNK Rijeka at 53%, the draw at 25% and Istra 1961 at 22%, from expected goals of 1.66 and 0.97.

How we got this number

The league sets the starting point. HNL 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. HNK Rijeka have 1 in 2 this season (1 of 1 at home), Istra 1961 3 in 3 (1 of 1 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 50% and 55%.

Last season still counts, briefly. With 2 and 3 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 46% and 50%.

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 11 times in three years, producing over 2.5 goals in 27%. 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 47%.

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 49%, from expected goals of 1.66 for HNK Rijeka and 0.97 for Istra 1961. Folding in 30% of that view gives 48%.

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 49%.

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
HNK Rijeka250%0%50%
Istra 19613100%67%67%

Head to head

17 May 26Istra 1961 0–0 HNK RijekaU2.5
15 Mar 26HNK Rijeka 0–2 Istra 1961U2.5
20 Jan 26Istra 1961 1–2 HNK RijekaO2.5
27 Sept 25HNK Rijeka 0–0 Istra 1961U2.5
19 Apr 25Istra 1961 2–0 HNK RijekaU2.5
9 Feb 25HNK Rijeka 0–1 Istra 1961U2.5

More: HNK Rijeka season stats · Istra 1961 season stats · HNL table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.