Match predictor

Castres Olympique vs Newcastle Falcons

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
Castres Olympique at home33-19 average
Castres Olympique 77.8%draw 2.5%19.7% Newcastle Falcons
Newcastle Falcons at home25-27 average
Newcastle Falcons 41.0%draw 2.5%56.5% Castres Olympique
Neutral ground30-22 average
Castres Olympique 66.1%draw 2.5%31.4% Newcastle Falcons

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 Castres Olympique wins; the faded bars at each end hold everything beyond 75 points.

Margin percentiles

p10 Newcastle Falcons +2p25 Castres Olympique +1p50 Castres Olympique +10p75 Castres Olympique +22p90 Castres Olympique +35

Eight runs in ten finished between 2 Newcastle Falcons and 35 Castres Olympique, with the middle run at 10 Castres Olympique.

Those are gaps rather than scorelines. How much scoring the match produces is drawn separately — between 32 and 74 points in eight runs out of ten — so one bar covers many scores. The middle run above is 25-15 on a tight afternoon and 37-27 on an open one.

Why Castres Olympique are favoured

Starting from an even match and adding what the model reads, in percentage points of win probability. Positive favours Castres Olympique, negative favours Newcastle Falcons.

Even match50.0%
Rating gap+23.9 pp

Castres Olympique 1485, Newcastle Falcons 1174 — 310 points, favouring Castres Olympique

Venue+7.5 pp

Castres Olympique are at home

Form and context-3.6 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.

Castres Olympique win77.8%

Head to head

Castres Olympique001Newcastle Falcons

1 meeting, 2020 to 2020 · Newcastle Falcons by 9.0 on average

DateMatchCompetitionVenue
2020-12-18Castres Olympique 1726 Newcastle FalconsEuropean Challenge CupStade Pierre Fabre

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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