Match predictor

Castres Olympique vs US Montauban

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 home40-15 average
Castres Olympique 88.5%draw 2.5%9.0% US Montauban
US Montauban at home20-34 average
US Montauban 18.8%draw 2.5%78.7% Castres Olympique
Neutral ground37-17 average
Castres Olympique 83.9%draw 2.5%13.6% US Montauban

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 levelp25 Castres Olympique +5p50 Castres Olympique +14p75 Castres Olympique +27p90 Castres Olympique +40

Eight runs in ten finished between level and 40 Castres Olympique, with the middle run at 14 Castres Olympique.

Those are gaps rather than scorelines. How much scoring the match produces is drawn separately — between 34 and 78 points in eight runs out of ten — so one bar covers many scores. The middle run above is 29-15 on a tight afternoon and 40-26 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 US Montauban.

Even match50.0%
Rating gap+37.4 pp

Castres Olympique 1485, US Montauban 824 — 660 points, favouring Castres Olympique

Venue+3.2 pp

Castres Olympique 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.

Castres Olympique win88.5%

Head to head

Castres Olympique200US Montauban

2 meetings, 2025 to 2026 · Castres Olympique by 18.0 on average

DateMatchCompetitionVenue
2026-03-28Castres Olympique 4917 US MontaubanTop 14Stade Pierre Fabre
2025-10-11US Montauban 2832 Castres OlympiqueTop 14Stade Sapiac

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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