Tokushima Vortis v Oita Trinita — prediction, stats and goal analysis

J2 League · Saturday, 29 August 2026. Final score 1–0 (half-time 0–0). Rebuilt from the season as it stood that morning, our rating would have been 36% 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 goals36%64%Under
Over 3.5 goals18%82%no pick
Both teams to score45%55%No

The result model puts Tokushima Vortis at 49%, the draw at 34% and Oita Trinita at 17%, from expected goals of 1.07 and 0.51.

How we got this number

The league sets the starting point. J2 League has produced over 2.5 goals in 45% of its matches, and that is where a team with no record of its own would sit.

Each side's own record. Tokushima Vortis have 1 in 3 this season (0 of 1 at home), Oita Trinita 1 in 3 (0 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 44% and 44%.

Last season still counts, briefly. With 3 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 31% and 39%.

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 37%.

Head to head. These sides have met 5 times in three years, producing over 2.5 goals in 60%. 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 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 21%, from expected goals of 1.07 for Tokushima Vortis and 0.51 for Oita Trinita. Folding in 30% of that view gives 33%.

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 36%.

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
Tokushima Vortis333%0%33%
Oita Trinita333%33%33%

Head to head

21 Jun 25Tokushima Vortis 2–0 Oita TrinitaU2.5
13 Apr 25Oita Trinita 1–1 Tokushima VortisU2.5
14 Sept 24Tokushima Vortis 3–1 Oita TrinitaO2.5
1 Jun 24Oita Trinita 1–2 Tokushima VortisO2.5
16 Sept 23Oita Trinita 3–3 Tokushima VortisO2.5
19 Feb 23Tokushima Vortis 1–2 Oita TrinitaO2.5

More: Tokushima Vortis season stats · Oita Trinita season stats · J2 League table and form. Ratings are calibrated probabilities, not tips — a 60% call is expected to miss two times in five.