Match predictor

Gloucester Rugby vs Lyon

What the model says about this fixture, at either ground and at a neutral one, with the record behind it. Ratings as at 2026-08-24.

Who wins, and where it is played
Gloucester Rugby at home29-21 average
Gloucester Rugby 65.9%draw 2.5%31.6% Lyon
Lyon at home28-22 average
Lyon 59.3%draw 2.5%38.2% Gloucester Rugby
Neutral ground25-25 average
Gloucester Rugby 52.2%draw 2.5%45.3% Lyon

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.

How the runs finished

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

Margin percentiles

p10 Lyon +12p25 Lyon +3p50 Gloucester Rugby +5p75 Gloucester Rugby +15p90 Gloucester Rugby +27

Eight runs in ten finished between 12 Lyon and 27 Gloucester Rugby, with the middle run at 5 Gloucester Rugby.

Those are gaps rather than scorelines. How much scoring the match produces is drawn separately — between 30 and 71 points in eight runs out of ten — so one bar covers many scores. The middle run above is 22-17 on a tight afternoon and 33-28 on an open one.

Why Gloucester Rugby are favoured

Starting from an even match and adding what the model reads, in percentage points of win probability. Positive favours Gloucester Rugby, negative favours Lyon.

Even match50.0%
Rating gap+7.0 pp

Gloucester Rugby 1520, Lyon 1429 — 91 points, favouring Gloucester Rugby

Venue+10.8 pp

Gloucester Rugby are at home

Form and context-1.9 pp

Recent results, head-to-head record and rest days, as the XGBoost heads weigh them. Deliberately capped, so it can nudge the rating but never overrule it.

Gloucester Rugby win65.9%

Head to head

Gloucester Rugby002Lyon

2 meetings, 2020 to 2021 · Lyon by 25.5 on average

DateMatchCompetitionVenue
2021-12-10Lyon 1913 Gloucester RugbyEuropean Challenge CupMatmut Stadium de Gerland
2020-12-13Lyon 5510 Gloucester RugbyEuropean Champions CupMatmut Stadium de Gerland

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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