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Japan vs Spain

What the model says about this fixture, at either ground and at a neutral one, with the record behind it. Ratings as at 2026-10-18.

Who wins, and where it is played
Japan at home39-14 average
Japan 89.8%draw 1.9%8.3% Spain
Spain at home20-33 average
Spain 25.8%draw 1.9%72.3% Japan
Neutral ground36-17 average
Japan 82.1%draw 1.9%16.0% Spain

Each figure is 5,000 simulations of this fixture. The score is where those runs are centred, not a likely scoreline — a rugby result is spread far too widely for any single one to be likely.

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How the runs finished

Winning margin across 5,000 simulations of this fixture. Bars right of the centre are Japan wins; the faded bars at each end hold everything beyond 75 points.

Margin percentiles

  • Middle 8 in 10
  • Middle half
  • Median
  • Level
  • Average

Eight runs in ten finished between level and 47 Japan, half of them between 6 Japan and 33 Japan, with the middle run at 18 Japan.

Those are gaps rather than scorelines. How much scoring the match produces is drawn separately — between 33 and 74 points in eight runs out of ten — so one bar covers many scores. The middle run above is 30-12 on a tight afternoon and 41-23 on an open one.

Why Japan are favoured

How the model arrives at the chance of Japan winning. It starts at an even 50%, and each line below adds to that or takes from it, in percentage points (pp): a bar to the right helps Japan, a bar to the left helps Spain.

Even match50.0%
Rating gap+24.3 pp

Japan 1846, Spain 1566 — 280 points, favouring Japan

Venue+7.7 pp

Japan are at home

Form and context+7.8 pp

Recent results, past meetings between the two sides, and days of rest. It has a limit, so it can nudge the rating but never overrule it.

Japan win89.8%
Spain win8.3%
Draw1.9%

Head to head

Japan3–0–0Spain

3 meetings, 1999 to 2013 · Japan by 23.7 on average

DateMatchCompetitionVenue
2013-11-23Spain 7–40 Japan—Estadio Nacional Universidad Complutense
2005-11-05Japan 44–29 Spain—Prince Chichibu Memorial Stadium
1999-08-20Japan 30–7 Spain—National Kasumigaoka Stadium

A dash under Competition means the record does not name one, which is common — most rows on file carry no competition. None of this feeds the forecast: both ratings already contain these results.

Rugby Tournament Predictor — unofficial, and not affiliated with any union, club or competition. About and sourcesForecasts are probabilities, not predictions of one result.

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