Match predictor

Cardiff Blues vs Gloucester Rugby

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
Cardiff Blues at home27-22 average
Cardiff Blues 63.1%draw 2.5%34.4% Gloucester Rugby
Gloucester Rugby at home28-21 average
Gloucester Rugby 63.6%draw 2.5%33.9% Cardiff Blues
Neutral ground24-25 average
Cardiff Blues 46.3%draw 2.5%51.2% Gloucester Rugby

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 Cardiff Blues wins; the faded bars at each end hold everything beyond 75 points.

Margin percentiles

p10 Gloucester Rugby +14p25 Gloucester Rugby +4p50 Cardiff Blues +4p75 Cardiff Blues +13p90 Cardiff Blues +24

Eight runs in ten finished between 14 Gloucester Rugby and 24 Cardiff Blues, with the middle run at 4 Cardiff Blues.

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 21-17 on a tight afternoon and 32-28 on an open one.

Why Cardiff Blues are favoured

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

Even match50.0%
Rating gap+3.7 pp

Cardiff Blues 1573, Gloucester Rugby 1520 — 54 points, favouring Cardiff Blues

Venue+11.5 pp

Cardiff Blues are at home

Form and context-2.1 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.

Cardiff Blues win63.1%

Head to head

Cardiff Blues101Gloucester Rugby

2 meetings, 2017 to 2018 · Gloucester Rugby by 9.5 on average

DateMatchCompetitionVenue
2018-05-11Cardiff Blues 3130 Gloucester RugbyEuropean Challenge CupSan Mames
2017-04-01Gloucester Rugby 4626 Cardiff BluesEuropean Challenge CupKingsholm

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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